Power hammer plans

Power hammer plans DEFAULT

Introduction: Power Hammer

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Sours: https://www.instructables.com/Power-hammer/

9 Homemade Power Hammer - How To Build A Power Hammer

As you might know already, a power hammer is simply a mechanical forging hammer that doesn’t require the use of a muscular power source to raise the hammer for striking. There are a lot of projects that show you how to make a power hammer but I found the best of the best.

After days of research, I was able to put together a list of 8 homemade power hammer projects that you can DIY. However, you might need a couple of tools and skills for this project. Brace yourself, because it will be time-consuming and also energy draining.

The good thing is, in the end, you would have built an amazingly outstanding power hammer for yourself.

1. DIY Pneumatic Power Hammer

The first tutorial we have for you is one that will show how to build a pneumatic power hammer, the time-lapse video is a quick walkthrough that will show you how the hammer was made. As the name implies “pneumatic” this power hammer is powered by gas under pressure.

You will need these parts for the build; a cylinder, foot pedal, quick exhaust valves ½ valves, plastic exhaust silencers, and a cylinder cushion. All of these items can be gotten from your favorite online store.

You might need to spend much more on tools if you do not have the tools used for making the power hammer. The tutorial has different segments that will show you the build process in detail.

2. Homemade Power Hammer

Here’s a homemade power hammer made from scrap, this power hammer runs by a treadmill motor. Acquiring the materials for making this might not be easy, you might have to spend money to buy scrap parts if you do not already have something similar at your disposal.

After getting the parts, you’ll need to build the power hammer by welding the parts onto a base. The next step would be getting a treadmill motor that would power the power hammer, the tutorial will show the process of installing the motor for the hammer.

For this project, you will need to have a couple of equipment that will help you in the build process. Making this might take a while to accomplish, but with determination, you will get the hang of it.

3. How To Make A Drill Powered Hammer

Here’s another cool project that might be of interest to you. In this tutorial, the creator walks you through a time-lapse video showing you how he was able to make a drill powered hammer. For this project, he used a drill, wood, some nuts, and bolts, and a couple of other materials. A wooden drill was also used to make holes where necessary.

The making process kicks off with building a compartment where the power hammer will sit, thereafter, wood is processed for the power hammer. The process is quite easy if you know your way around woodworking.

Also, an actual hammer is used for this project, after building and securing the area for the drill, he then links the drill with the powered hammer in a seamlessly easy way. This is an easy-to-make power hammer that I would recommend for people who are looking for an easy to build power hammer.

4. The Bicycle Power Hammer

Here’s another project that is fun to make. If you have an old bicycle in your garage, you can use it to build a power hammer. This bicycle power hammer works manually, which means you would have to hand crank it for it to work.

The making process starts off with taking off the tires of the bicycle until you are left with just the rims. You will also need to take off the spokes and for this, you will need a saw.

After a series of pulling off, the creator starts with the hammer build, basically, you will have to saw off parts from the bicycle and make some modifications. You will also need to build a solid base for the bicycle so it does not fall off while you are using the hammer.

I think this is a one of a kind power hammer, it is less expensive, efficient and can be used to do a lot of good. The process of converting a bicycle into a power hammer is time-consuming but I’m sure you’ll get the hang of it.

5. DIY Power Hammer


Are you a professional looking for plans to build a beautiful power hammer for yourself? While doing my research I came across these free plans containing a number of steps with images that can be used to build a power hammer. Feel free to make modifications.

Parts are what make up this homemade power hammer, this tutorial shows you details for making all the parts. I love that the power hammer is motor powered and doesn’t need manual effort to work.

The only downside to this amazing power hammer is that there are no detailed instructions on how to make it, so, making this hammer might be difficult for a complete beginner. However, if you are an experienced blacksmith, the images should be useful. Simply click on the link below to see the full instructions.

Click for more details

6. DIY Small Power Hammer

Here’s a fun tutorial that will show you how to make a small power hammer, the video is broken into different parts. In total, the video is divided into 6 parts, all the parts are basically time-lapse videos that show how the creator was able to build the power hammer.

Part 1 shows the building of the crank plate and shaft, subsequent videos show how to make and assemble the toggle arm for the power hammer, making the anvil, the die plate, and welding on the dies.

Part 6 is the part everyone looking at making this should check out, this is where the creator explains all the dimensions used for the build. For this homemade power hammer, you would need to spend a lot of money on materials and tools if you do not already have them handy.

7. How To Make A Full Metal Power Hammer

I found another video tutorial on how to make a full metal power hammer, this is also a small power hammer that is not as big as the previous ones in this article. The making process starts off with sketching the power hammer on a piece of paper, this gives you a more precise way of cutting out the parts you need for the power hammer.

Afterward sketching parts of the power hammer, you will need to cut metal to the desired shape using a metal cutter. For materials, you will need a spring, a 3 quarter inch rod, a one, and a half-inch rod for the anvil, and a couple of other tools. Basically, you need to do a whole lot of cutting, and after that comes the fun part which is assembling.

The tutorial is segmented into 3 different parts that explain in detail how to make a full metal power hammer, this hammer might not be ideal for carrying out huge projects, however, it could come in handy sometime.

8. How To Build A Power Hammer

Here’s another tutorial I found useful. This is a guide that will teach you how to build a power hammer, but the best part is, the power hammer is fully customizable, which means you can adjust the dimensions to fit your needs.

Unfortunately, the video tutorial does not show the making process of this power hammer, however, the creator takes time to show you all the important measurements of his power hammer, how you would want to build it is totally up to you. You can make it smaller, or bigger.

For materials, you will need a whole lot of metal and some power tools to do the cutting for you. The power hammer sits on a wooden base, you can build this wooden base for yourself by simply cutting wood and doing the needful.

9. Homemade Power Hammer Build

Have you ever wondered why most people use wood for their power hammers instead of steel? This is because using wood would be quieter than using steel. If you have neighbors around, you should consider using wood, it might not be completely silent, but it would be way better than using steel.

In this video tutorial, the creator walks you through the motor used for the hammer, he also shows all the components used to make this power hammer and explains how he put it together. The tutorial isn’t very detailed as it doesn’t show you the building process, however, if you have the skill, building this should not be hard for you.

Sours: https://www.littleloveliesbyallison.com/homemade-power-hammer/
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17 Homemade Power Hammer For Forging

A homemade power hammer can help turn your blacksmithing hobby or business into a less intensive labor of love. Instead of physically hammering heated steel into submission by hand, a DIY power hammer can do most of the labor intensive work for you with beautiful results. A homemade power hammer may not be the cheapest thing to build, but by doing it yourself you can build it to your own exact specifications. Look over these 17 design ideas and plans to find just the right power hammer to meet your forging needs.

You may also like to see homemade propane forge.

17 Homemade Power Hammer For Blacksmithing

1- Mechanical Homemade Power Hammer

These detailed plans will show you how to design and build a mechanical power hammer that will be easy to maintain and have a long life expectancy. Not exactly for the hobbyist forger, but if you foresee forging as a way of life in your future, this top of the line homemade power hammer will meet your needs.

Mechanical Homemade Power Hammer

2- Rusty Dusty Homemade Power Hammer

The name was given by the inventor of this amazing mechanical hammer, and he also gives his phone number along with the building plans. The pictorial plans will walk you through the DIY build, but if you need further assistance, call the number provided with the plans. You are encouraged to call with any issue or problem you encounter while embarking on this DIY build and the inventor will talk you through the process over the phone.

Rusty Dusty Power Homemade Hammer

3- Scrap Built Power Hammer

You can build a power hammer for practically nothing by following the instructions on this YouTube video. Watch the video for inspiration, then prowl through your own metal scrap pile to discover items that can easily be transformed in a DIY power hammer.

4- Bucket List Blacksmith DIY Power Hammer

If one of the things on your bucket list is to build your own power hammer and become a blacksmith, then this easy to build design is for you. This entertaining and informative YouTube video will show you how to transform some basic items into a blacksmiths power hammer. Only a few items are needed for this DIY build:

* Steel rods

* Brass pole

* Anvil

* 25 pound hammer created from a railroad tie

* Assemble and weld together as shown in this video, then get busy forging and check it off your bucket list.

5- Crank Shaft Motion Homemade Power Hammer

These power hammer plans show you how crank shaft motion can be used to make working with steel much easier. Informative YouTube video provides step by step plans for building this inexpensive and tough power hammer that will make forging easier and quicker. The two handed control literally puts the striking force into your hands, but uses much of your energy to exert the forceful blows.

6- Tire Homemade Power Hammer Plans

Invented by Ray Clontz, from Charlotte, NC,  the tire hammer is truly unique and easy to build. The operating mechanism runs smoothly and is easy to get a feel for so you can be forging like a pro from the beginning. The operating mechanism is simply a steel wheel on the motor shaft that rubs an inflated rubber tire. Detailed pictorial instructions show you how to assemble the tire hammer at home with just the following tools:

* Cutting torch

* Stick welder

* Drill press

* Bandsaw

* Grinder

These common tools are found in most home workshops and they will enable you to build this highly functional, unique DIY power hammer.

Tire Homemade Power Hammer Plans

7- Anvil Mounted Power Hammer

These power hammer plans are unique in that they show you how to build an anvil mounted power hammer. This DIY build features a variable speed motor, electric clutch control, portable and can deliver 50 to blows per minute. Weighing only 82 pound, this anvil mounted power forging hammer can be scaled to accomodate large or small anvils, allowing you to customize it to meet your personal forging needs.

Anvil Mounted Homemade Power Hammer

8- Treadle Homemade Power Hammer

This YouTube video provides you with power hammer plans that run the finished product without power. The treadle design allows you to physically control the power with your foot. The unique design using a spring allows the hammer to be less rigid for more controlled strikes. Dies are easily removed for quick interchanging when forging your own unique pieces.

9- Cheap Power Hammer

Build a power hammer for very little money when you follow the instructions of this YouTube video. Start a forging business or improve your forging skills with this well-made, inexpensive DIY power hammer.

There is no need to spend money on equipment if you can build it yourself and save money. The money saved can be invested in the raw materials needed to forge hand-made knives and other unique metal items.

Turn your hobby or dream into a profitable business with this cheap power hammer that can be custom built for your needs.

Portable Homemade Power Hammer

Watch this YouTube video to learn how to build apower hammer that is small, easy to handle, lightweight, and portable. This homemade power hammer can go wherever you go and forge raw material into useful and beautiful metal items.

This homemade power hammer hits hard and accurate so you can forge with speed and precision. If you are a blacksmith by trade or want to learn forging and become a blacksmith, you will need a good, dependable blacksmith’s power hammer.

Ideal for ironwork around the homestead or for re-shoeing horses. A lightweight, portable DIY portable power hammer can help you make money as a traveling farrier that goes to where the horses are for a re-shedding job.

Forging Power Hammer

Follow these power hammer plans on YouTube and build your own forging power hammer for very little money. The cost is low but the power of this blacksmithing hammer is high. Forge all the raw metal you want with ease after building this power hammer that will do all the hard hitting for you.

There is a great satisfaction that comes from taking a raw piece of metal and transforming it into a functional item through the art of blacksmithing. And one thing a blacksmith must have to create works of metal art is a forging hammer.

Power Hammer Video Tutorials

This instructional YouTube video will show you how to construct the arms to hold the DIY power hammer, the slider it fits into, and a little secret for keeping the noise and vibration down to a minimum.

This is a very detailed video that will take you through the DIY project step by step so the build will be easy. Start your own blacksmithing business and make a good living from home after building this DIY power hammer.

DIY Power Hammer

This YouTube video will show you how to take the best design ideas of different power hammers and mesh them together to create one amazing DIY power hammer. Make forging easier without spending a lot of money when you create a unique power hammer that will meet your forging needs.

Combine the best design ideas into one useful blacksmithing tools so you can get the most out of your forging time. Metalworking projects can be completed faster and easier when you have a DIY power hammer that is designed for your exact needs.

Treadle Hammer

This DIY power hammer gets its’ power from your foot and will beat hot metal into the desired shape with ease. Follow the detailed instructions of this YouTube video and build a treadle power hammer for your home blacksmithing shop.

This design is simple and effective, allowing you to forge raw material with very little effort. Let your feet do the work instead of your arms with this unique treadle design DIY power hammer.

Steel Forging Machine

Build a DIY steel forging machine with the free plans shown on this YouTube video. This DIY project is easy to build and the power hammer will handle all type of steel forging you want to do.

It’s inexpensive to build and will effectively transform raw steel into functional pieces that can be used on the homestead or sold for profit. This DIY steel forging machine is easy to operate and maintain, and it will save you a lot of work when creating metal items.

Di Vinci Drill Power Hammer

Stop using your muscle power to beat steel into shape and let drill power do the hard work for you. Watch this YouTube video to discover how to use a Di Vinci drill and some lumber to create a DIY power hammer that will make blacksmithing easy.

Create a heavy duty frame from lumber for the drill and add a blacksmith hammer and anvil, then let the drill be the power behind the hammer. This design makes the work easy and quick

Home Built Power Hammer

This home built power hammer can be customized to the desired size so it can fit into your work space. The cost of building this DIY power hammer is very low also, with the main expense being the cost of the lumber.

If you have some 6 x 6 posts on hand then that will cut the building expense in half. This study DIY power hammer will make a great piece of equipment for your blacksmith shop and will be effective for beating all types of metal.

Home Built Power Hammer

+Farhan Ahsan

Sours: https://theselfsufficientliving.com/homemade-power-hammer-for-forging/
DIY power hammer -step by step - home forge equipment
With the explosion in hobby smithing and part time blacksmithing there has been a great interest in building forging machines or power hammers. There are two schools of construction JYH (Junk Yard Hammers) and DIY (Do-It-Yourself). JYH construction is a philosophy of using found and scrounged materials, spending the least possible money. It requires both scrounging and engineering skills. The engineering skills (or an innate sense of mechanics) are necessary to repurpose found or accumulated items rather than very specific items. DIY construction is based on plans or a preconceived set of parts and materials obtained new or used. While scrap can be used it needs to fit the plan rather than the plan being adopted to found materials. Most metalworkers can build a DIY hammer but many do not have the engineering or (imagineering) skills to build a true JYH.

Before building a mechanical power hammer you need to understand how they work. The basics.

  1. Needs a motor and drive system.
  2. Hit the work controllably (hard - soft, fast - slow).
  3. Compensate for the change in material thickness AND increase stroke RETURN energy.
  4. Absorb the forces without transmitting excessive vibration to the floor and building.
  5. Optionally
    1. Adjust for large changes in work height.
    2. Adjust the stroke for greater control.
    3. Accept changeable dies

ITEM 1 Motor and Drive

Little GIant HP chartThe necessary motor can vary in horsepower depending on the size of the hammer and how fast it operates. In general a 1HP motor will run a small hammer under pounds and a to 2 HP motor is needed to run a pound or greater hammer. Higher HP motors may be used and have greater durability than if run at maximum capacity. Hammers over pounds are rarely JYH or DIY class machines so large motors are not needed.

Reverse engineering such as using the chart to the right can be helpful. However, one must understand the context. Little Giant used standard industrial duty motors starting at 1HP. As hammers increased in size so did the motor size but not necessarily according to need.

If this chart were directly proportional a 25# hammer would need 1/10th the HP of a # hammer. That would be 3/4 HP.

Lbs.Little GiantFairbanksBradleyMIN
25 1 HP 1/2 HP ? HP3/4
50 2 HP 1 HP ? HP1
75   HP ? HP1
3 HP2 HP ? HP
 2 HP ? HP2
 3 HP ? HP3
15 HP  ? HP
* MIN Rounded motor sizes based on Lbs. / 66
This comparison chart has some interesting data. Fairbanks Hammers claim much lower HP requirements than Little Giants. How? Why?

Motors are also sized according to inertia. Starting a heavy load requires inertia rather than horsepower. Once the load is moving horsepower is required to keep it moving.

This is part of the discrepancy between LG and Fairbanks specs. The LG ratings are for motors, the Fairbanks for line shafting HP where the starting inertia is not a consideration. But it is also known that a 50 lb. LG will run on a 1HP motor and our pound anvilfire X1 hammers run snappily with 2HP. I would not try to run a 25 pound hammer on 1/2 HP but our 40 pound EC-JYH ran on 3/4 HP and the extrapolated Little Giant data says that a 25 pound hammer should run on 3/4HP.

Speed is also part of the HP formula but most hammers run proportionately slower as the size increases. Thus the ram weight to HP for mechanical hammers can be a fairly constant ratio.

The Fairbanks data rounds UP from the formula above except at pounds which should be 4 HP (we rounded up to 5 the nearest standard motor): At 25 pounds the formula returns a little over 1/3 HP thus Fairbanks rounded to 1/2 HP. We split the difference between Fairbanks and Little Giant thus 3/4 HP in the MIN column. However, there are those who push the performance of these small hammers with heavier springs, running them much faster than originally intended with much higher horsepower motors.

Multiple Motors

The junk yard builder, DIY and the home shop operator often have a difficult time finding cheap single phase motors to run their machinery. In most industrial applications 3PH power is required so most machines and many used or discount motors over 1HP are 3PH. These can be run on a phase converter but not without some expense.

An option for the DIY builder is to put TWO motors on one machine. The motors CAN even be different sizes! This works but only under certain conditions.

1) The motors must be the same type (IE induction). 2) The motor's rated full load RPM's are identical. 3) The coupling method or pulley's are identical.

Common induction electric motors operate at a "slip" speed under load that is slower than the nominal syncrounous rating. This means an or RPM motor develops its rated power at something less than syncrounous. That is why the name plate RPM ratings on motors are odd values, , , . and so on. These are the slip speeds below the nominal rating. If these match then you can use two motors on the same drive.

On the EC-JYH I had two small fractional HP motors, one a 3/4 HP and the other a 1/2 HP. These two motors pulled on the same belt using the same 2" pulley's. This resulted in a combined /4 HP. Due to needing to slip the belt more to reduce the operating speed we disconnected the smaller motor but left it on the machine!

This does not work on every machine and works best when there is a jack shaft. But it would be possible to build a machine running on 2, 3, 4. . motors. Several 1/3 HP motors could be combined to produce 2/3 HP or three to make 1 HP. Normally this is pure junk-yard construction due to being more economical running one motor with one pulley and one belt. But it IS a option.

Blows Per Minute (BPM or RPM)

The standard motor turns RPM on 60Hz power and RPM on 50Hz power. This in turn needs to be slowed down to a maximum of about to RPM for a small hammer, to for a medium hammer, slower if the hammer dynamics are in question. Normally pulleys do this job. On the Tire-Hammer drive it is its own built in reduction (about )

The speed reduction calculations are simple. Large Pulley Diameter divided by Small Pulley Diameter equals the reduction (from 3 to 6 to one). Divide the motor speed by the reduction and you have the maximum speed of the hammer in blows per minute. If you want to be picky you can use the actual motor speed under load ( to for and RPM motor). But it makes little difference in this application.

The average practical reduction using common belts and pulleys is but it can be more. When a great deal more is needed then a back shaft and double reduction is used. When calculating a double reduction drive you take the two reduction amounts and multiply them for the total reduction. So, if you have and you need then you need a second reduction set. Or if you need you could use and Simple if you understand it.


A clutching mechanism of some sort is needed. Historically the best power hammer clutch has been the slip-belt type. Other clutch types such as the Little Giant cone clutch are more complicated and are not recommended for constant slipping. A recent development in JYH/DIY clutching mechanism is the "Spare Tire Clutch". All are friction drives and are used to control the speed of the hammer as well as stop and start it. All are tensioned by the power hammer control (foot treadle). On a belt drive an idler (a third pulley) is pressed against the slack side of the belt to tighten it. On a tire hammer the metal drive wheel is pressed against the tire surface.

The advantage of the spare tire clutch is that it is cheap and easy to build with junk yard parts. The down side is the compact spares are difficult to change and a whole wheel replacement may be needed when the tire wears out. New replacements are expensive and the demand for used replacements for automobiles is fairly high even though the prices are low.

The advantage of the belt clutch is that material types can be varied (cotton, rubber, leather, nylon) and the belt is easy to replace. The down side is that pulleys need guide edges or rims to prevent the belt from sliding off when slack. Common pulleys are not made this way so custom pulleys may be required. V-belts MAY be used but they are not a good as flat belts for slipping to control speed OR to use with a brake. They tend to engage with a jerk and want to run full speed.

Cone clutches such as used by Little Giant are expensive and not intrinsically suited for speed control. Little Giant cone clutches require constant oiling and change in performance as the oil coating spins off. For all their expense they do not perform any better than a belt or wheel clutch.

None of these drives care which direction they rotate. However, if an idler is used then it should be on the "slack" side of the drive. This is the side opposite the tension or working side of the drive (where the belt pulls against the driven pulley). On a friction wheel (tire hammer) drive the motor pulley wants to be climbing the driven wheel, not pushing it away. While both will work opposite of this they work easier, smoother and better the right direction.

Compensation, Ram Speed, Energy return

Because all three of these factors are performed by the hammer linkage it is one of the least understood parts of a mechanical power hammer. Changes in work height must be automatically compensated for between every hammer blow. In order to hit hard and soft the stroke must increase with speed. And finally the upward motion of the ram must be stopped and the energy that would be wasted by a simple crank mechanism stored and returned on the down stroke. This is done with springs OR springs and toggles.

Benchmaster 4Ton OBI pressPunch Press: These requirements are why a punch press (a flywheel driven machine with a crank and ram) cannot be used for a power hammer. A punch press's linkage pushes the ram down a specific distance and then returns. If the dies in the ram cannot overcome the resistance of the work to be done the machine stops suddenly and SOMETHING breaks. Ideally the clutch breaks but sometimes the crank or the frame breaks. . . sometimes the punch or die blow up. Obviously these are not desired results and are the reason why every punch press job must be engineered. Similar machines (upsetters or forging machines) ARE used for forging but each job must be carefully engineered AND the machines are VERY robust. These are far beyond the scope of the DIY builder.

Compensation for changes in work thickness has two conditions that must be addressed. The first is the change in work height as the metal is forged thinner, the second is different work starting heights (stock size) OR tooling. The first requires a linkage with a spring but if great work height variations are to be accommodated then the linkage must also have a length adjustment mechanism since the spring compensation becomes very inefficient outside a small range.

There are two basic spring systems. The spring helve or springhammer, and the toggle and spring. The second can use a leaf spring, coil spring OR rubber elastomer spring and is known as the DuPont linkage for its inventor. Bradley and a few others used rubber springs but were less common than steel springs. The DuPont linkage was used on almost every successful power hammer built in North America in one way or the other. These include, Fairbanks, Little Giant, Bradley, Champion and many others. The spring helve was popular in Europe and has only recently become popular elsewhere due to its simple construction. Each system has pros and cons as well as performing differently. There are other spring systems that we will not discuss in the main of this article. Air hammers are included in the chart below for reference but are not part of this article.

Pros/ConsSpringHammerDupont LinkageAir Hammer
Size*Large floor spaceVery compact but tallerCompact but tall
ComplexitySimpleCritical parts / dimensionsCommercial parts generally required
CompensationSpring OnlySpring & Toggle GeometryIntrinsically wide range
Blows (hard/soft)Medium rangeWidest RangeMedium by pull back
Stroke IncreaseMedium by springWidest by variable geometryOptional Controls
Normally %
Energy EfficiencyHighHighest VERY Low
* Size comparisons must consider throat depth. Machines with deep throat depth will be larger than those with a shallow throat. Air hammers, while compact on their own, need to consider the air compressor space. Self-Contained Air Hammers which contain their own air compressor are the reality of air hammer space requirements.

The DuPont Linkage

While it is not the simplest to build is has numerous advantages. It is the most compact of the mechanical linkages, most efficient and has the widest range of control. However it IS more technical to build to advantage.

The advantages of the Dupont and bowspring with toggle linkages are from the horizontal toggles. These vary the mechanical advantage against the spring from infinity to about 70%. It is the middle point of the stroke when the ram floats through that very low spring force that gives the mechanism its unsurpassed action. While builders of spring helves claim the same "snap" as a Dupont linkage hammer the action is just not the same.

When properly adjusted for the work height the Dupont linkage hammer hits the work just outside the floating point before there is any lifting force on the ram. This results in a hard positive blow and little or no shock transmitted into the drive. At the top of the stroke the inertia of the ram compresses the spring as the leverage between the spring and ram progressively increases. This change in leverage puts much greater force on the ram at the stopping point and as it accelerates the ram downward than a plain spring with a constant 1 to 1 mechanical ratio.

More Power Hammer Linkages.


Energy = mass times velocity squared. So increases in velocity are more significant than increases in mass. In mechanical hammers the velocity is determined by RPM, throw and increase in throw, plus the dynamics.

Time between blows in a power hammer determine how hard the hammer hits but also the controllability. A hammer that strikes too fast between blows is hard to control for many types of work. It is common practice for the smith to need to rotate the work a specific amount between blows. If he cannot keep up with the machine it is much less useful.

Hammers with stroke length adjustment can be run short and fast producing lighter blows or long an slow with heavier blows.

Support - The Anvil

To understand anvils you need to imagine them floating in space. If the anvil is the same size as the hammer, when the hammer strikes the anvil will fly away at the same velocity that the hammer struck it, and the hammer will stop (like pool balls). If there was work between the two the work would move but very little energy would go into the work. If the anvil is only twice as big as the hammer it will move away at about half the speed. Double the energy would go into the work. So if one of these small anvils is resting on the ground or floor all that energy is transferred into the ground and wasted in vibration or noise. If that anvil is a piece of structural or pipe much of the energy goes into springing, deflection and vibration (and the ground).

The chart above starts with that small anvil and zero efficiency. Obviously as the anvil mass increases the work efficiency increases. Heavy old machines had anvil to ram ratios of 10 to 20 to one. and 60% efficiency is considered standard efficiency. and 70% efficiency was considered "heavy duty" by Chambersburg. But many manufacturers had anvils with a ratio or slightly less.

Man vs. Machine

At the top of this chart is the and greater ratios typical of a heavy smith's anvil. This is in the 96% and 98% efficiency range. When expending skilled human effort a very high efficiency is desired. But when a machine is applying the energy a motor that costs pennies an hour replaces the work of several men. You can afford to waste more of that energy than that of a man's. But the machine can only afford to be less efficient not totally inefficient.

Power hammer anvils not only determine the overall efficiency of the machine but the amount of noise and vibration the machine produces. Vibration transmitted through the floor and noise both add to worker fatigue. Thus a less efficient machine results in a less efficient worker. Vibration transmitted into the floor can damage the floor and building, cause object to shake off shelves and produce complaints from neighbors.

Ergonomics are also a factor in power hammer anvil design. Most modern smiths like the dies to be higher than on older hammers at about 32" to 34". But there have also been situations where the smith sat on a stool while operating the hammer doing production work. This is possible on the low die hammers but not as easy on a higher die hammer.

Part 2 : Power Hammer Linkages


Sours: https://www.anvilfire.com/power/power-hammer-building.php

Hammer plans power

First and foremost I want to point out that I designed these hammers MY way. It was not the easiest way nor the most economical way to build hammers. Some elements are the way they are to prove an idea. These are NOT Junk yard hammers, they are hammers designed to be built by and used by metalworking professionals or highly skilled hobbiests.

Since building them I have done a lot or examination of the design and have changed the plans we (might) publish to reflect these changes. Chief among the changes is how the drive wheel is mounted. The X1 and the common tire hammer modifies the drive wheel. This is a bad idea for several reasons. One is that it makes tire replacement difficult. The other is that while it seems to save effort it does not. Our new design will have the unmodified wheel and tire on the back similar to the Costa Rica Tire Hammer so that it is as easy to replace as any automobile tire. This in turn requires the motor to be moved from the left to the right for convienient access to the electrical box. Other changes include correcting design mistakes and making a few improvements.

This project started with a hard push with the goal to have the hammers running for the anvilfire 11th aniversary hammer-in in The result was a disaster. The design was not complete and mistakes were made. We were trying to make two hammers at once and did not have time for one. We kept working while the hammer-in was supposed to be going on after a number of near all-night work sessions. . . I was a crispy critter at the end of the weekend.

The project slowed to a creep due to economics, health issues of the participants and scheduling conflicts. What was supposed to take a month stretched to over 4 years. This should not reflect on the actual time required to build one of these hammers.

The most major mistake was not having a throughly checked assembly drawing. Many of the details were complete but the assembly was a single pencil sketch with multiple starting points for dozens of dimensions determining the height stackup.

The mechanical arrangement for this hammer started as an idea for a rubber-band hammer. This design has rubber bands or nylon straps stretched between two arms and the pitman raising the ram by the middle of the band. While this sounds bizarr it is a reversal of how a number of hammers were built including the Bradley "strap" hammers. From this idea the sketch at left was made using leaf springs instead of rigid arms and toggle links instead of rubber bands.

The machinery needed to build these hammers is modest but not in the range of all. While a Junk Yard Hammer may be built using the cheapest easiset methods, often arc welding everything together, this is NOT a Junk Yard hammer. It is a shop built hammer designed to be maintainable and have a long life. It can be dissasembled for moving, adjustments made and dies replaced.

X1 Specifications

  • Pound (50 kg) Ram
  • Pound Anvil and Base : 1 Ratio
  • 2 HP 1PH RPM Motor
  • Blows Per Minute Max.
  • 4 Working Strokes , , , "
  • 0 to 3" Open Space
  • 0 to 6" Working Height
  • 3 x 5" ( x 5" STD.) Dies
  • 6" x 12" Frame Pass Through
  • 24" Wide, 33" Deep, 92" Tall
The X1 was calculated to need slightly less than 1HP (kW) to operate and thus was speced with a HP motor. However, the commonly available HP motors have a light frame with a 5/8" diameter shaft which was deemed too light for this application. Substitute HP motors were more expensive so the 2HP (kW) NEMA GT Farm motors with 7/8" shafts were used.

Big BLU die holders and dies were used on the X1. Similar sized bolt on dies could be substituted and will be an option on the published X2 plans.

While this hammer uses the DuPont style toggle to great advantage, the spring arrangement is unique. Its primary advantage is efficient use of mass. It does not have the heavy arms and links of other mechanical hammers and the springs are part of the ram. This converts what is dead ineffient reciprocating weight on other hammers into working mass.

IF you use this arrangement PLEASE give the inventor (Jock Dempsey AKA the anvilfire guru) credit. We put these ideas out there freely but they cost a lot of time and effort.

The key to this design is the spring adjustment rockers. These were the first parts detailed and the first parts made. Both the rockers and rocker caps were made using a large drill press and a small 4" x 6" cut off saw.

Drilling the block and layout for sawing the rocker caps.

Typical of many machined parts more material is reduced to chips than that in the remaining part. Above we are making 8 rockers caps, 4 for each hammer. The " hole was drilled on a 25" Champion drill press but could have been bored on a small lathe or milling machine. After drilling, the parts were sawed out.

Using a pin cross drilling jig and sawing the rockers.

The rockers are made by cross drilling lengths of round bar then sawing them off. The drilling fixture in use was made for another job. It was not necessary, just handy. The fixture holding the parts for sawing was drilled with the same " drill as the rocker caps. For building one machine a wooden V clamp would work. This same round stock is also used for the main shaft.

The final step on the rockers was to egg out the holes with a die grinder for the change of angle during adjustment. This task could have also been done on a milling machine but the die grinder was very efficient for this task.


Sours: https://www.anvilfire.com/power/building_X1-power-hammer.php
Iron Concepts 49 - The Best Power Hammer Ever Made

Do-It-Yourself Power Hammer For Blacksmiths



For about $1, and hrs. of gathering materials and construction time, you can make your own power hammer with a unique drive mechanism.
  “This Tire Hammer uses an emergency spare tire and rim mounted on a trailer axle and hub,” says Clay Spencer, who sells plans and leads workshops to build the tire hammers. The retired NASA mechanical engineer has a passion for power hammers because they’re so handy for any blacksmith – amateur or professional.
  He developed the design based on a sketch on a napkin by inventor Ray Clontz, who gave him permission to build and create plans.
  It’s driven by a 1 hp, 1, rpm, single phase, 60 cycle, / volt, frame 56, (TEFC preferred) electric motor. A flat pulley (3 7/8-in. dia.) is mounted on the motor. The motor is pivoted by the treadle action, so the pulley rubs against the tire to drive the hammer downstroke. This “clutch” provides outstanding control, says Spencer, because the harder you push on the pedal, the faster the tire spins. It delivers up to blows a minute and will cut through 2-in. thick metal in about 20 strokes.
  Spencer’s design calls for a lb. hammer and a 6 by in. solid anvil. The 6 1/2-ft. column that supports the hammer and drive is made of 1/4-in. wall, 5-in. square tubing.
  “We have made hammers in workshops across the country,” Spencer says. Blacksmiths get together to plan a date and spend three weekends doing preassembly before Spencer arrives for the final weekend. His fee is a tire hammer and mileage from his home in Alabama.
  “This is a difficult and demanding project to build correctly,” Spencer says. “The welds must be done strong enough to hold everything together. The pins must all be parallel to prevent wearing out the bearings. The hammer head must be aligned to the anvil correctly so the dies will hit evenly, and the tire and crank must be properly positioned to line up with the toggle mechanism and guides.”
  Still, he notes, it’s a project many farmers and ranchers have the skills to complete, as well as parts on hand to reduce the cost. He has sold several hundred copies of his plans with 20 pages that include a materials list, drawings and complete directions.
  Spencer also offers workshops on making tools to go with the tire hammers, and he has designed two styles of treadle hammers. Spencer teaches at the John C. Campbell Folk School in Brasstown, N.C., in a blacksmith shop named after him.
  To see his hammer in action, go to www.farmshow.com to view a video.
  Contact: FARM SHOW Followup, Clay Spencer, 73 Penniston Pvt. Dr., Somerville, Ala. ( ; [email protected]).

  Click here to download page story appeared in.

  Click here to read entire issue

To read the rest of this story, download this issue below or click here to register with your account number.

 - Volume #36, Issue #2
Sours: https://www.farmshow.com/a_article.php?aid=

Now discussing:

Build Your Own 75 LB Air Hammer
With These Plans!

Save Money! With This
Air Hammer
Construction Manual
Ebook You Can!
By David Robertson

David Robertson creator of 75 lb Air Hammer Plans, Power Hammer Plans   Air Hammer Plans Cover Image, Power Hammer Plans Cover

My name is David Robertson and I have been blacksmithing for over 20 years now. Part way through those 20 years I discovered that doing all this work by hand was extremely tough. A blacksmithair hammer or a power hammer was the solution for me.

I looked around for alternatives. The traditional solution was to have an apprentice, but that wasn't practical for me.

I settled on building an Air Hammer from scratch. At the time I couldn't afford to buy a Kuhn air hammer and didn't have the space to put it. A small Air Hammer offered affordability and customization.

75 LB Air Hammer, Completed Power Hammer

After I built my first air hammer I discover what a great tool it was and that I couldn't live with out it. It was such an incredible tool that I though other blacksmiths should have one as well. So I started building them for my local blacksmith community.

I have altered my original plans several times since then and have now compiled them into this manual, which is now available to you online as a downloadable ebook.

With the 75 LB Air Hammer Construction Manual you will be able to:

  • Save several thousand $ dollars on this machine!!!
  • Build it to your specifications.
  • Understand the actual workings so you can fix any problems that may come up.
  • Save the physical wear and tear on your body. 
  • You will be able to create more intricate forged work with many new techniques.
  • Work larger bar with out getting as tired.
  • Be faster at production so you can make more money.
Many reasons to build your own air hammer.

A large number of my website members have asked me to provide a set of plans for the air hammer. Many live far away where shipping of the machine would be expensive and difficult.

I felt it was unfair to only offer people on the other side of the world these air hammer construction plans. So I am offering them to everyone in all countries.

Please be aware before you buy these Air Hammer Plans that to construct this machine:
  • You will have to be a decent welder. 
  • You will have to be mechanically inclined as you will be fitting parts to your personal specifications. 
  • You do not have to have a machine shop, but you will need typical power tools found in a blacksmith shop.
  • You will need about two weeks to construct this machine.
  • There are some heavy parts and you will need to be able to move them around.
Air Hammer dies at 45 degrees. This orientation of the power hammer dies provides better work access.
Air Hammer Dies Set at 45 Degrees.

Air Hammer roller valve placement.
Roller Valve Activation Configuration

Air Hammer Foot peddle sample.
Sample Foot Peddle Configuration

Customer responses.

I recently ordered and received your self-made Air Hammer plans and wanted you to know that I found it extremely well written, it's easy to follow and everything is explained in detail.

I just wanted to give you positive feedback on this item. I am very glad I found your site and enjoy receiving your newsletters and watching the videos online. It is all very helpful.

I've only been a member a short time and have given information to my friends and colleagues that are also blacksmithing.

Wayne Cates

The Video below shows some of the things that you can do with this air hammer.

To Buy the Air Hammer Plans

Clickbank sells our products - they are a trusted online retailer specializing in digitally delivered products. Your credit card statement will show a charge from Clk*Bank.com for $ US regular price. Members received a $ discount for a price of $ US Membership is free and you can join at the top right of this page.

Purchase must be made through the members area of my site www.artistblacksmith.com for the discount!

You will need Adobe Reader to veiw the document in its pdf format. Adobe reader is a free download and can be obtained here.

After you have a copy of Adobe Reader you will easily be able to veiw the document and save it to a location on your computer. The file is about Mb in size and download time will vary with your connection speed. I live in the country with only dial up available and it takes me about 6 minutes to download it. Of course with high speed and it will only be a few moments.

Download 75 LB Air Hammer Construction Manual Now for the regular price of $ US by clicking the link.


Download 75 LB Air Hammer Construction Manual Now for the members price of $ US by clicking this link.
(takes you to members sign in page).

If you have questions about the ebook please email me at:
Contact Me
David Robertson
Artist Blacksmith

P.S. I have been using variations of this Power Hammer in my shop for over 13 years now. It is my right hand in the shop. This machine has saved me 's of hours of work and it has made smithing fun again! I will use the air hammer for everything from drawing out 1/4 inch round to drawing out inch square bar and more.

P.P.S. I was recently discussing the air hammer with a friend of mine and did some quick calculations. The first air hammer I built was in Since then I have gone through (rough estimate) 3 million hits with it!

That is 3 million hits that my arm did not have to do. More actually because more work gets done on each hit with the air hammer.

3 million hits that my arms and joints and shoulders did not have to take! Obviously you can start to see the benefit of using this machine. It was a bit of an eye opener. 3 million is hugely significant.

Good Smithing!
Once you pay on the Clickbank Page you will automatically be taken to the download page.
This may take 5 seconds.
Please be patient.
If by chance you do not recieve your ebook just email me as I have a record of your transaction, but it may take me a bit of time to get back to you.

Don't Worry It Will Get Sorted Out!


copyright David Robertson www.artistblacksmith.com


Sours: https://www.artistblacksmith.com/items-for-sale/Air-Hammer/Air-Hammer-Plans.html

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