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mungas power hammer plans
Does anyone know where i could see or get a copy of the plans for his power hammer. or has anyone biult his model and how does it do.
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#2
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Mungas hammer ??? I have never heard of it. Is it a sheet metal shaping hammer or a blacksmith’s powered hammer ? How about posting some photos. ~ John Buchtenkirch
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#3
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#4
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Here is a link to Munga's youtube video of his power hammer.
http://www.youtube.com/watch?v=6T4Kbr1Xyaw I found the plans and photos but need to get Munga's permission before I post them. I've sent him a message and will let you know.
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Kerry Pinkerton |
#5
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I remember when he posted that hammer. His hammer was made from off the shelf parts with little or no machining.
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Rick Scott The second mouse gets the cheese! |
#6
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Can someone here say anything about this hammer, he also has a video about on youtube? http://www.youtube.com/watch?v=9Ka97e7mnE0
Looks a bit like a pneumatic Planishing hammer, but with at least 2" stroke?? I like both hammers. Jens |
#7
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I just watched the video. It seems to ME he has the wrong dies in the machine . That was a lot of hitting for such with little results. If he was trying to planish the shrinks out I personally was not impressed. The part was not smooth and had alot of waves in it.
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Rick Scott The second mouse gets the cheese! |
#8
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The dies seem small and may be similar in size to CP planishing hammer dies. The way the springs are set up I’m not sure the power of the hit increases as the speed of the hammer picks up like on a Pettingell or Yoder. Actually the way he is hammering I’m not sure he has much control over the strikes per minute or it could be his style to hammer at full speed all the time. He was having a hard time getting his shrinking tucks to lay flat, it seems like he doesn’t know or can’t run the hammer slower to hit just hard enough to lay those tucks flat --- that is critical especially right at the edge. For me the jury is out on this one, I would really have to run it to give an honest & fair opinion. ~ John Buchtenkirch
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#9
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John, Mungaman's machine isn't really a power hammer, it is a reciprocating machine along the lines of a Pullmax. I have said from day one that I thought the springs would be more a hindrance than a help, but that is only my opinion offered from experience and from watching the videos - I have never run a machine of that type before, so it is also a matter of speculation on my part.
Tim D. |
#10
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Quote:
A power hammer should have a brake so when you lift off the foot peddle it stops instantly or almost so. Power hammer guys test their brake by trying to “one shot” them, in another words tap the pedal and instantly release it to get only one hit. I wish I could say mine were 100% but sometimes they double hit. They should be able to run as fast as 800 to even 1200 SPM or BPM so you can get an overlap of hit points while moving the panel thru the dies. They should be able to hit fairly hard with only a short stroke so you can work on smaller parts with your fingers close to the dies with some degree of safety. And finally they should be stout or robust enough that they can maintain a fairly consistent hit point thru their range of use --- that might include bolting them to the floor if they don’t weight enough to be stable. That’s all I can think of at the moment, there may be more but the above would be a very good start in the right direction . ~ John Buchtenkirch |
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