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Found 10 results

  1. Jeremy Blohm

    60lb power hammer build

    I didn't do the best documenting the entire build but I will give you guys what I got. The beginning. The hammer heat treat. I will be finishing up in the next few days and I will post some more pictures and a test video.
  2. Hello everyone! My name is Andre, I’m naturally from Brazil.  I am finishing my kynion style pneumatic hammer but I’m having a low bpm problem and I don’t know what is the main cause, since I have a 250L compressor running with 15bar.. this is the compressor. My piston is kinda big, but I don’t think that it would be a problem to this compressor... it have 115mm on its base, and the arm diameter is 45mm ( don’t know if this is the right word). The length of the closed piston is 85cm and opened is 145cm. to create the air circuit I’ve based myself on crickets air hammer plans, but I’ve dove with only one roller valve and I’m starting to think that this might be the problem This picture shows the basic scheme that I’ve used, but I’ve removed the venting valve.. the pilot valve is not the one in the picture, I’m using a 1/2” 5/2 spring pilot valve. All the main connections are 1/2”, only the roller valve and its connections are 1/4” And finally, this is the video of the air hammer running... I think you might be able to see the air circuit and tell if the problem is in it... Just remembering that this air hammer was made entirely from scraps... that’s why it’s a little bit ugly, hahahaha. CF2992AA-F93C-4BDA-ACF9-2BE65A5F32CF.MOV 57BC66BC-7A67-48D2-BF5A-E84FFDDC8FB6.MOV
  3. I did a Google search a couple of ways on this and found that we didn't have a thread with any definitive answers, at least that I could find by permutations of the terms. So, since I like to see anwers, or at least discussions with preferences, easy to find I'd like to ask the users of each or both some questions. Which would be more useful to you for, Pattern welding, Sword making, General knife making ? How about the advantages and disadvantages of each ? This is generally meant to skirt around the questions of different DIY designs (since there are so many variations based on what is available/affordable) and concentrate on what each does, or doesn't do to the steel. Of course, if it veers to that area, so be it.
  4. Geoff Hardy

    Little giant question

    Hey guys I just picked up a little giant 50# and I have noticed that the clutch seems to be engaged tight when you plug in the motor. You can turn the fly wheel and the whole hammer starts to move without touching the foot treadle. Do you guys have any ideas what might be the problem.
  5. Hey guys I have found a 50lb little giant that is not too far away . It's about 7 1/2 hour drive on the highway and I am wondering the best way to transport this beast. Right now I am leaning towards a uhaul vehicle hauler trailer some tires and ratchet straps which of course means laying her on her side which kind of scares me but from what I understand is pretty safe. Getting her off it and into my shop will be a huge pain but I think I might be able to borrow a fork lift from one of the shops in town and slide her in that way. She ways 1800lbs but I would love some advice on moving one of these guys from any of you.
  6. Hi guys so I have been doing some thinking, and came across the idea of getting my hands on a power hammer. But I´m having a hard time finding a supplier closer to where I live (preferably in the European Union) Does anyone have any ideas ? I was thinking about getting a C41-25 Forging hammer 25kg, not the biggest around but Im not planning on going nuts just for hobby damascus. Or should I just stick with building a treadle hammer ?
  7. So I dont have good pictures of it, for some reason all the ones I took on my phone didnt come out while I was looking at the hammer today. I just bought this hammer today, and should have it delivered to my shop in the next week or two (I'm paying someone who has a truck with a crane arm to pick it up and drive it the 20 miles to my house) so I need to make sure I clear the space for it, and build a wooden base for it. I also need to get a VFD or phase converter for it, since it's currently running on a 2hp 3phase motor but I dont have 3 phase power in my shop. I drove over to take a look at it this afternoon, and when the owner plugged it in and started to use it as is, it was one of the 2 shop hammers in a professional shop that's being downsized, I knew it was the one for me. It needs no work except putting the brake back on it (runs fine without the brake too, most mechanical power hammers dont have them from factory anyways) So happy and excited to have a hammer, cant wait to get it set up and start pounding out stuff. I was originally going to be buying a 50lb LG later this year, that the owner was going to start rebuilding sometime next month, but... this one kinda fell in my lap, ready to use and just 20 miles down the road, at a price I could not pass up. I wrote him a check on the spot!
  8. I've been hunting for a small mechanical power hammer for my workshop for some time and I think that I've finally found my hammer =) This may not look like much yet, but... its' all there. (in boxes and crates spread across a shed) After talking with the owner, we're going to rebuild and reassemble it up at his shop late this winter, and put it on a sturdy portable foundation of a 4x4 steel 1" plate, ontop of rubber shock cushioning, ontop of a rock maple base. The current owner has rebuilt many hammers, and already has jigs set up for machining new dovetails for the sow block, making new top and bottom hammer dies, making new keys for the keyways, etc. Originally I was going to buy the whole hammer as a project and do allt he work myself, but I think it's better to take advantage of his expertise and experience to make sure that the hammer is a working tool good to go once I take it home. I offered to write him a deposit check on the spot, but he said lets wait until it's up and running first. When he got the hammer, the previous owner had just re-poured the top shaft babbit... but they did it wrong. the shaft wasnt perfectly perpendicular to the ram guides, and was instead a few degrees off. As a result when you engaged the clutch with the foot treadle, it would get stuck and the hammer would just keep pounding away. He has already re-poured the babbit (the shaft he used for pouring is still in it in the photo) but has not scraped it yet. Just for comparison, this is his power hammer... Just a WEE bit bigger =D
  9. Greetings, gentlemen. One important question for you, please: My bladesmithing master installed power hammer in his shop - the type embedded in the floor in a deep pit, with proper cushioning (as per instructions). However, when it's put to work, the entire house is shaking - and since it's fairly old house, the end result is that he is unable to use the power hammer at all. It was quite costly, so we're trying to figure out what else can we do to be able to use it. Recently, my master came across notion of some kind of "pneumatic absorption pillows", that could possibly solve this problem. Do any of you, please, have some idea about what might help or where I might get pair of these "pillows"? The desired size is 28x28 cm (that would be about 11x11 inch). Any info and help is much appreciated! Many thanks, Tomas
  10. Stephen Stumbo

    So it begins...

    Well, I've spent enough money on supplies that I decided it was time to start a thread about this. I've been slowly planning out this build, and am finally pulling the trigger on some materials. Last week I brought home this used motor to power the beast, 1.5 HP industrial motor, single phase, 220 v. Then today whilst wandering the scrapyard I found the right hunk of steel for the anvil, 9.25" dia steel, 3' long. Weighs in about #700. That's all for now, I'll keep ya'll updated as I slowly get together the stuff to start the build. Stephen.
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