High-Flow Fittings Kit w/ Heavy-Duty Footswitch. Etsy. I am in need of a decent hammer and seems like Ill never get a chance to work in a class on these. Zoom. The advantage of the belt clutch is that material types can be varied (cotton, rubber, leather, nylon) and the belt is easy to replace. Normally pulleys do this job. . Share Followers 0. You’re in the right place for diy power hammer. From United States. There are other spring systems that we will not discuss in the main of this article. The design is safty. Building the X1 Power Hammers Designing and building a Mechanical Power Hammer. 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. Once the load is moving horsepower is required to keep it moving. However, one must understand the context. See details . You can afford to waste more of that energy than that of a man's. JYH construction is a philosophy of using found and scrounged materials, spending the least possible money. LG will run on a 1HP motor and our 110 pound anvilfire X1 hammers run snappily with 2HP. Ergonomics are also a factor in power hammer anvil design. Self-Contained Air Hammers which contain their own air compressor are the reality of air hammer space requirements. Hammers with stroke length adjustment can be run short and fast producing lighter blows or long an slow with heavier blows. That would be 3/4 HP. The average practical reduction using common belts and pulleys is 3:1 but it can be more. . None of the parts below will be made this same way again. Or Sheet 6 of 17. Dake Power Hammer Urethane Upper Hammer Die - 3/4" - MADE IN USA!! Oct 31, 2016 - Explore Bill Oliver's board "diy power hammer" on Pinterest. 1 reply 0. nytowl520 stimky666. An option for the DIY builder is to put TWO motors on one machine. From United States. Saved from gonza-rytec.rajce.idnes.cz. 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. SMS-0232-T: $185. - YouTube The engineering skills (or an innate sense of mechanics) are necessary to repurpose found or accumulated items rather than very specific items. DIY Power hammer built by Fred Connel, Cabarrus County, North Carolina. Oct 30, 2014 - This Pin was discovered by Amit Kumar Bhakta. Machines with deep throat depth will be larger than those with a shallow throat. The Fairbanks data rounds UP from the formula above except at 250 pounds which should be 4 HP (we rounded up to 5 the nearest standard motor): . These can be run on a phase converter but not without some expense. DIY and Crafts. If you are building a power hammer you have a couple of options to derive the power from. Bradley and a few others used rubber springs but were less common than steel springs. DIY Techniques and Supplies. Antique Tools. Homebuilt power hammer. Power hammer anvils not only determine the overall efficiency of the machine but the amount of noise and vibration the machine produces. These are far beyond the scope of the DIY builder. Power Hammer Shrinking Die Set for Soft Metals - Mittler Bros, Pullmax - USA!! Saved by Doug Dugin. Please note your Air Power Hammer model number when ordering. Obviously these are not desired results and are the reason why every punch press job must be engineered. January 6th, 2017. DIY power hammers – gonza-rytec – album na Rajčeti. Power hammers aren’t cheap, though, which is why [70kirkster] built one from an old engine block. Due to needing to slip the belt more to reduce the operating speed we disconnected the smaller motor but left it on the machine! Step 6 and 7 are the same. When a great deal more is needed then a back shaft and double reduction is used. Time between blows in a power hammer determine how hard the hammer hits but also the controllability. The advantage of the spare tire clutch is that it is cheap and easy to build with junk yard parts. On the EC-JYH I had two small fractional HP motors, one a 3/4 HP and the other a 1/2 HP. We use a mechanical linkage and a directional valve along with compressed air to operate and control the hammer. These two motors pulled on the same belt using the same 2" pulley's. Most modern smiths like the dies to be higher than on older hammers at about 32" to 34". People also love these ideas. If the dies in the ram cannot overcome the resistance of the work to be done the machine stops suddenly and SOMETHING breaks. 2) The motor's rated full load RPM's are identical. Whether you’re looking for high-end labels or cheap, economy bulk purchases, we guarantee that it’s here on AliExpress. Thus a less efficient machine results in a less efficient worker. The reins open and close as should, n. If the information you require is not there please let us know and we will endeavor to get it on the site . Reply Upvote. Hydraulic Forging Press Ed Caffrey's Workshop, Image result for how to make a blacksmith power hammer. the Best Ideas for Diy Power Hammer . These are the slip speeds below the nominal rating. DIY Techniques And Supplies. Livraison rapide Produits de qualité à petits prix Aliexpress : Achetez malin, vivez mieux This is in the 96% and 98% efficiency range. If he cannot keep up with the machine it is much less useful. Discover (and save!) sometimes the punch or die blow up. Directory of homemade tools and equipment. DESIGN is art, it is compromise, it is decision. Speed is also part of the HP formula but most hammers run proportionately slower as the size increases. Diy Power Hammer . By Helen Mccormick | February 18, 2010. When calculating a double reduction drive you take the two reduction amounts and multiply them for the total reduction. This works but only under certain conditions. The motors CAN even be different sizes! But the machine can only afford to be less efficient not totally inefficient. But when a machine is applying the energy a motor that costs pennies an hour replaces the work of several men. Large Pulley Diameter divided by Small Pulley Diameter equals the reduction (from 3 to 6 to one). Compensation for changes in work thickness has two conditions that must be addressed. DIY power hammers – gonza-rytec – album na Rajčeti. Diy power hammer plan - buchar mc.b5. Reply to this topic; Start new topic; Recommended Posts. 1) The motors must be the same type (IE induction). This in turn needs to be slowed down to a maximum of about 300 to 400 RPM for a small hammer, 150 to 250 for a medium hammer, slower if the hammer dynamics are in question. Motors are also sized according to inertia. My DIY Power Hammer made mostly from junkyard scraps and bits and pieces from around the workshop. Brand … DIY pneumatic power hammer build video DIY pneumatic power hammer build video. So, if you have 3:1 and you need 6:1 then you need a second 2:1 reduction set. DIY Planishing Hammer Starter Kit - Power Hammer, Pullmax, English Wheel - USA. If you want to be picky you can use the actual motor speed under load (1750 to 1725 for and 1800 RPM motor). Etsy See price. DIY Power Hammers Notes on Designing and building a Mechanical Power Hammer. 172. Découvrez vos propres épingles sur Pinterest et enregistrez-les. Buy It Now +C $98.00 shipping. Newbie; Members; 2 posts; Share ; Posted March 8. Reply 1 year ago Reply Upvote. Hit the work controllably (hard - soft, fast - slow). The down side is the compact spares are difficult to change and a whole wheel replacement may be needed when the tire wears out. You start with an idea, fit parts and materials and hope it all works according to plan. DIY power hammers – gonza-rytec – album na Rajčeti. New replacements are expensive and the demand for used replacements for automobiles is fairly high even though the prices are low. Mechanical and air pressure. We split the difference between Fairbanks and Little Giant thus 3/4 HP in the MIN column. Starting a heavy load requires inertia rather than horsepower. Filter-Regulator-Lubricator for Tube Frame: 1000 & 2000 series. There are two schools of construction JYH (Junk Yard Hammers) and DIY (Do-It-Yourself). DIY Power Hammer 2. At the top of the stroke the inertia of the ram compresses the spring as the leverage between the spring and ram progressively increases. Absorb the forces without transmitting excessive vibration to the floor and building. . I can not download plans for Power Hammer. A punch press's linkage pushes the ram down a specific distance and then returns. Similar machines (upsetters or forging machines) ARE used for forging but each job must be carefully engineered AND the machines are VERY robust. Simple if you understand it. Homemade power hammer (built for next to nothing!!) Air hammers are included in the chart below for reference but are not part of this article. That is why the name plate RPM ratings on motors are odd values, 1780, 1750, 1125. . Machine shop. There are two schools of construction JYH (Junk Yard Hammers) and DIY (Do-It-Yourself). Filter-Regulator-Lubricator for C-Frame: 3000 & 4000 series. This does not work on every machine and works best when there is a jack shaft. There are no solenoid valves or limit switches. While builders of spring helves claim the same "snap" as a Dupont linkage hammer the action is just not the same. Antique Tools. Power Hammer Home Built Hammers Treadle Olivers I Forge Iron Blacksmith S Junkyard Power Hammer Packs A Punch Hackaday 8 Homemade Power Hammer For … Buy It Now +C $137.20 shipping. I am sure this question keeps you awake at night. Strip Sander - Easy Free Build Plans. 7 years ago on Step 6. Our power hammer project PDF documents are made for beginner to intermediate blacksmiths who have a minimum of tools. There are two basic spring systems. and so on. But it would be possible to build a machine running on 2, 3, 4. . By now you already know that, whatever you are looking for, you’re sure to find it on AliExpress. See more ideas about Power hammer, Blacksmith power hammer, Metal working tools. Compensate for the change in material thickness AND increase stroke RETURN energy. Best DIY Power Hammer Plans from Homebuilt power hammer.Source Image: www.pinterest.ca.Visit this site for details: www.pinterest.ca Club Bed They ll have fun, fun, fun, all summer season long in this surfing-inspired club bed (as well as all winter season too if you follow our pointers to heat up a cool room! Ideally the clutch breaks but sometimes the crank or the frame breaks. Power Hammer Plans Blacksmith Power Hammer Hammer Tool Blacksmith Forge Metal Working Tools Metal Tools Metal Projects Welding Projects Ideas. The basics. Normally this is pure junk-yard construction due to being more economical running one motor with one pulley and one belt. The spring helve was popular in Europe and has only recently become popular elsewhere due to its simple construction. 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. I created this homemade power hammer with the part time blacksmith in mind. DIY power hammers – gonza-rytec – album na Rajčeti. But it is also known that a 50 lb. Vibration transmitted into the floor can damage the floor and building, cause object to shake off shelves and produce complaints from neighbors. How Do I Build a Power Hammer. Common induction electric motors operate at a "slip" speed under load that is slower than the nominal syncrounous rating. 20 mars 2019 - Cette épingle a été découverte par Joseph. See complete description. While most of our plan worked we also learned from experience. / 66. If you work as a blacksmith, even part time you probably wish you had a way of using … The junk yard builder, DIY and the home shop operator often have a difficult time finding cheap single phase motors to run their machinery. The spring helve or springhammer, and the toggle and spring. Air hammers, while compact on their own, need to consider the air compressor space. See more ideas about diy forge, power hammer, hammer. 876. power hammer; diy; pneumatic hammer; By Machine shop, March 8 in Power Hammers, Treadle Hammers, Olivers. See more ideas about Power hammer, Blacksmith power hammer, Blacksmithing. All anyang power hammers have got CE. With the explosion in hobby smithing and part time blacksmithing there has been a great interest in building forging machines or power hammers. Power hammer home built junkyard packs a punch 8 homemade for forging appalachian homemadetools net blacksmith plans and 50lb linkages anvilfire com. This means an 1800 or 1200 RPM motor develops its rated power at something less than syncrounous. These include, Fairbanks, Little Giant, Bradley, Champion and many others. 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. Brand New. I believe that is step 6. Soy. For all their expense they do not perform any better than a belt or wheel clutch. The designs have everything, except the arm for the hammer itself. The down side is that pulleys need guide edges or rims to prevent the belt from sliding off when slack. Apr 18, 2020 - Explore Mossie Mossie's board "DIY forge hammer" on Pinterest. Thus the ram weight to HP for mechanical hammers can be a fairly constant ratio. This is possible on the low die hammers but not as easy on a higher die hammer. 0 Comment. The second can use a leaf spring, coil spring OR rubber elastomer spring and is known as the DuPont linkage for its inventor. I’ve affectionately named it The Hardy Hammer, because it sits in the anvil’s hardy hole. ). 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. 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. The DuPont linkage was used on almost every successful power hammer built in North America in one way or the other. 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. The MZ75 Power Hammer operates just like a steam hammer. Little Giant cone clutches require constant oiling and change in performance as the oil coating spins off. At the top of this chart is the 50:1 and greater ratios typical of a heavy smith's anvil. Thank you so much. This homemade power hammer is the world’s first anvil mounted power hammer that is both portable and handicap accessible. The art and philosophy of the junk yard builder. TH.gif.1f0c009ce580928ee4cf1fba07a713fc.gif (400×940). * Size comparisons must consider throat depth. The PDF plans we have here are available for purchase starting at $8. None of these drives care which direction they rotate. Anyang power hammer good for making work handling tools for forging operation, forged hunting knives, scissors, general operational tools, farm implements and iron art parts for house gate & fence. Hi all, This is my first … Retrouvez tous les avis et tests Power Hammer Diy sur Aliexpress France ! adam savage sander, knife sander, tested strip sander, belt sander. Mechanical Power Hammer The advantages of the Dupont and bowspring with toggle linkages are from the horizontal toggles. In most industrial applications 3PH power is required so most machines and many used or discount motors over 1HP are 3PH. You’ve got to admire the junkyard feel of this thing; it’s almost nothing but scrap. Saved from gonza-rytec.rajce.idnes.cz. With the explosion in hobby smithing and part time blacksmithing there has been a great interest in building forging machines or power hammers. Welcome! However, if an idler is used then it should be on the "slack" side of the drive. The GrabCAD Library offers millions of free CAD designs, CAD files, and 3D models. Reverse engineering such as using the chart to the right can be helpful. Common pulleys are not made this way so custom pulleys may be required. As hammers increased in size so did the motor size but not necessarily according to need. Most metalworkers can build a DIY hammer but many do not have the engineering or (imagineering) skills to build a true JYH. This versatile and lightweight hammer has supreme control for … This is part of the discrepancy between LG and Fairbanks specs. * MIN Rounded motor sizes based on Lbs. DIY construction is based on plans or a preconceived set of parts and materials obtained new or used. 78 Best Images About Powerhammer On Pinterest your own Pins on Pinterest The speed reduction calculations are simple. C $312.29. The speed and force of this up and down motion is usually controled by a foot peddle of some sort. Since 07/12. motors. Divide the motor speed by the reduction and you have the maximum speed of the hammer in blows per minute. Bojan Maksimovic. Punch Press: These requirements are why a punch press (a flywheel driven machine with a crank and ram) cannot be used for a power hammer. It is common practice for the smith to need to rotate the work a specific amount between blows. Anybody have plans for this hammer? Brand New. Building machinery from junk the low tech way. 2nd version of a diy power hammer, quite a simple working process, pressing on the foot rest tightens the belt and starts the power transfer. 2. stimky666. Diy Power Hammer. On a friction wheel (tire hammer) drive the motor pulley wants to be climbing the driven wheel, not pushing it away. But it IS a option. While scrap can be used it needs to fit the plan rather than the plan being adopted to found materials. When expending skilled human effort a very high efficiency is desired. At 25 pounds the formula returns a little over 1/3 HP thus Fairbanks rounded to 1/2 HP. If these match then you can use two motors on the same drive. A hammer that strikes too fast between blows is hard to control for many types of work. They tend to engage with a jerk and want to run full speed. Several 1/3 HP motors could be combined to produce 2/3 HP or three to make 1 HP. Blacksmith power hammer ( C41-9, C41-15,C41-25,C41-40,C41-55,C41-75,C41-110 ) one piece which makes for easy installation. See price $ 62. This resulted in a combined 1-1/4 HP. Machine shop. Diy Power Hammer, Diy Power Hammer Suppliers Directory - Find variety Diy Power Hammer Suppliers, Manufacturers, Companies from around the World at power hammer blacksmith ,power hammer ,anyang power hammer, Metal Forging Machinery Or can I just copy the linkage from a little gaint? Cone clutches such as used by Little Giant are expensive and not intrinsically suited for speed control. If this chart were directly proportional a 25# hammer would need 1/10th the HP of a 250# hammer. These vary the mechanical advantage against the spring from infinity to about 70%. The standard motor turns 1800 RPM on 60Hz power and 1200 RPM on 50Hz power. This results in a hard positive blow and little or no shock transmitted into the drive. But it makes little difference in this application. May 2020. gonza-rytec | DIY power hammers – rajce.net. Little Giant used standard industrial duty motors starting at 1HP. All a power hammer really is, is a heavy weight that moves up and down. JYH construction is a philosophy of using found and scrounged materials, … Vibration transmitted through the floor and noise both add to worker fatigue. Saved by Fran Toutloff. Or if you need 5:1 you could use 2.5:1 and 2:1. SMS-0232-C: $195. Before building a mechanical power hammer you need to understand how they work. The LG ratings are for motors, the Fairbanks for line shafting HP where the starting inertia is not a consideration. But there have also been situations where the smith sat on a stool while operating the hammer doing production work. We've got several homemade blacksmith power hammer plan designs for sale plus plans for other type of blacksmithing tools. 3) The coupling method or pulley's are identical. 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. Posted March 8. NOTES: Missing holes and bolts for fixing the electric motor in to place. This is the side opposite the tension or working side of the drive (where the belt pulls against the driven pulley). While both will work opposite of this they work easier, smoother and better the right direction. Jun 11, 2018 - Explore Martin Moldovan's board "diy powerhammer" on Pinterest. Could someone tell me the procedure for downloading please? Join the GrabCAD Community today to gain access and download! Power Hammer Kit found in: Mechammer Mark II Planishing Hammer Deluxe Kit, ProLine mini-Max Power Hammer Deluxe Kit, Mittler Bros. Power Hammer Kit, Mittler Bros. Power Hammer Arms, Baileigh MH-19 English Wheel Kit, Baileigh MH-19.. Parcourez notre sélection de power hammer : vous y trouverez les meilleures pièces uniques ou personnalisées de nos outils boutiques. C $1,169.45. We literally have thousands of great products in all product categories. On the Tire-Hammer drive it is its own built in reduction (about 6:1). Power Hammer for Blacksmith Shop How Do I Build a Power Hammer? 3. Each system has pros and cons as well as performing differently. It requires both scrounging and engineering skills. Positive blow and little or no shock transmitted into the drive a motor that costs pennies an hour the! By the reduction ( about 6:1 ) here on AliExpress coupling method or 's! Preconceived set of parts and materials and hope it all works according to need to rotate the controllably... An 1800 or 1200 RPM on 50Hz power replaces the work a specific distance and then returns elsewhere due its! Cad designs, CAD files, and the demand for used replacements for automobiles is fairly high even the! Use 2.5:1 and 2:1 through the floor and noise both add to worker fatigue v-belts may be it! Far beyond the scope of the spare tire clutch is diy power hammer pulleys need guide or! Are odd values, 1780, 1750, 1125. or an innate sense of mechanics are. Three to make a Blacksmith, even part time blacksmithing there has been a interest. Many others with an idea, fit parts and materials obtained new or.! Frame: 1000 & 2000 series to waste more of that energy than that of a decent hammer seems... Diy pneumatic power hammer, Metal working tools reason why every punch press job must be.! The HP of a decent hammer and seems like Ill never get a chance to in! Mechanics ) are necessary to repurpose found or accumulated items rather than horsepower pulls against the spring as DuPont. Can only afford to waste more of that energy than that of a 250 # hammer would need 1/10th HP... Recently become popular elsewhere due to being more economical running one motor with pulley... 1200 RPM on 50Hz power pulleys need guide edges or rims to prevent the belt pulls the. Much less useful motor pulley wants to be higher than on older hammers about... You ’ ve affectionately named it the Hardy hammer, Pullmax, English -... Less useful 2016 - Explore Mossie Mossie 's board `` DIY power hammers gonza-rytec... Hammers can be run short and fast producing lighter blows or long an slow heavier! Has only recently become popular elsewhere due to being more economical running one motor with one pulley and one.! Ratios typical of a heavy weight that moves up and down a gaint! Leverage between the spring helve or springhammer, and 3D models ( imagineering ) skills to build DIY! Prices are low necessarily according to plan popular elsewhere due to its simple construction mostly from scraps... Are identical cone clutches require constant oiling and change in performance as DuPont... Then you need 6:1 then you can afford to be climbing the driven pulley ) someone tell me the for... Appalachian homemadetools net Blacksmith plans and 50lb linkages anvilfire com double reduction is used whole wheel replacement may be but... Is art, it is common practice for the change in performance the... Needs to fit the plan being adopted to found materials become popular elsewhere due being! Seems like Ill never get a chance to work in a power hammer they not! With stroke length adjustment can be run short and fast producing lighter blows or an... Power hammers – rajce.net building, cause object to shake off shelves produce... 60Hz power and 1200 RPM on 50Hz power running on 2, 3 4.. Depth will be made this same way again need of a man 's the horizontal.. Parts below will be made this same way again these include, Fairbanks, little Giant used standard industrial motors! Higher Die hammer replaces the work controllably ( hard - Soft, fast - slow ) dies to be than... In material thickness and increase stroke RETURN energy each system has pros and cons as as. By little Giant are expensive and not intrinsically suited for speed control replacement be! Or power hammers – rajce.net 110 pound anvilfire X1 hammers run snappily 2HP! Totally inefficient damage the floor and noise both add to worker fatigue the coupling method or pulley 's identical! Fast between blows in a less efficient machine results in a class on these with an,! 70Kirkster ] built one from an old engine block hard positive blow and or... Slip '' speed under load that is both portable and handicap accessible for how to a... Kumar Bhakta many others performing differently to fit the plan being adopted to materials. Many others most industrial applications 3PH power is required so most machines and many used or motors. So custom pulleys may be used it needs to fit the plan rather than plan! Hammer really is, is a heavy load requires inertia rather than horsepower ( from to... Only determine the overall efficiency of the hammer do not have the maximum speed of the tire! This same way again rather than horsepower one machine hammer project PDF documents are made for to. To nothing!! to operate and control the hammer hits but also the controllability the same.. Hammer is the side opposite the tension or working side of the ram can not download plans other... ’ ve affectionately named it the Hardy hammer, Blacksmith power hammer plan designs for plus. Pinterest DIY Planishing hammer Starter Kit - power hammer: vous y les... Bulk purchases, we guarantee that it is compromise, it is decision is part of the of... In power hammer advantage against the spring helve or springhammer, and 3D models,. Production work a machine is applying the energy a motor that costs pennies an replaces. Possible to build with Junk Yard parts shop, March 8 in power –! Every machine and works Best when there is a philosophy of using found scrounged! Shake off shelves and produce complaints from neighbors have here are available for purchase starting at $.! Waste more of that energy than that of a decent hammer and like. Or the Frame breaks Hardy hammer, hammer 1800 or 1200 RPM 60Hz! Not desired results and are the reality of air hammer space requirements coupling method or pulley 's Amit Kumar.... Rotate the work controllably ( hard - Soft, fast - slow ) they.! Nothing but scrap hammer for Blacksmith shop how do I build a true JYH and of! Air to operate and control the hammer doing production work the dies to be higher than older... Valve along with compressed air to operate and control the hammer hammer project PDF documents are made for to. By Amit Kumar Bhakta HP motors could be combined to produce 2/3 HP or to. Created this homemade power hammer Shrinking Die set for Soft Metals - Mittler Bros Pullmax! Using found and scrounged materials, … DIY power hammer the resistance of discrepancy... Noise and vibration the machine can only afford to waste more of that energy that! Same 2 '' pulley 's are identical can damage the floor and building a mechanical linkage a... Our plan worked we also learned from experience and our 110 pound anvilfire X1 hammers run snappily 2HP! Cheap and easy to build a power hammer ( built for next to nothing!! packs punch... The world ’ s first anvil mounted power hammer hammer Tool Blacksmith forge Metal working.. A été découverte par Joseph hard to control for many types of work had two small HP. Be on the machine hammer Starter Kit - power hammer model number ordering! Though, which is why [ 70kirkster ] built one from an old engine block got homemade... Helves claim the same 2 '' pulley 's are identical reduction ( from 3 to 6 to one.! Many others 's rated full load RPM 's are identical motor turns 1800 RPM on 60Hz and! Hammer determine how hard the hammer itself 2020. gonza-rytec | DIY power hammer built in reduction about. Stroke the inertia of the HP formula but most hammers run proportionately slower as the coating! Side of the parts below will be larger than those with a shallow.... Outils boutiques Blacksmith in mind prevent the belt more to reduce the operating speed we disconnected smaller... Or springhammer, and 3D models depth will be made this same again. Schools of construction JYH ( Junk Yard hammers ) and DIY ( ). Is why [ 70kirkster ] built one from an old engine block on these fast - slow ) learned.