888captain Posted April 7, 2014 Share Posted April 7, 2014 Hello to all. I am a fair way into my hammer build but cannot lock myself into the type of spring system to fit to the tup. The hammer at this stage is approx 30kgs plus other reciprocating parts. It will have what is known here as a Horton clutch setup for the drive instead of the tyre type only because it was available. My anvil is 260mm 4140 shaft material with home made dies of heavy rail line. I have built and discarded leaf spring and dupont type set ups and was wondering if anyone with experience would pass their oppinion on the type on jock dempsey x1 power hammer. At this stage i am leaning towards this set up because of its simplicity and the fact that it takes away reciprocating mass from the drive and puts it on the tup. I dont know how to attach the website to this so hopefully those in the know won't mind having a look on the anvilfire site and watching the video. Cheers Ian Quote Link to comment Share on other sites More sharing options...
arftist Posted April 7, 2014 Share Posted April 7, 2014 It looks good, but what is a horton clutch? Jock's drive seems to rely upon some flywheel effect from the tire, so it is hard to say how it would interact with a horton clutch. Don't try to link from AnvilFire to here. That is not OK with Jock. By the way, flat belt slip clutches work great and are simple. Quote Link to comment Share on other sites More sharing options...
888captain Posted April 7, 2014 Author Share Posted April 7, 2014 a horton clutch is an air operated clutch that provides a positive drive. I have deleted the air operation and will provide drive via a variable tredle action as per most power hammers. I think from what i have read that LG hammers use a cone clutch arrangement. I most likely will have to play with clutch plate surface areas or materials. The flywheel effect of the tyre is one thing I have not concidered. Can anyone tell me more about this? Cheers Ian Quote Link to comment Share on other sites More sharing options...
jwill Posted April 21, 2014 Share Posted April 21, 2014 Here is the hammer I built based off the X1 and I am really happy with it. The clutch assembly is nothing more than the motor sitting on a hinge and a return spring. Very simple and very easy to do. I also have a multy step pulley for when I want to slow the hammer down which is pretty handy if I'm doing some finish forging on things. The hammer is 70 lbs. with an anvil that weighs about 760 lbs. The guides I based off of the old style LG. I don't think I would do that again but it works well enough. The main frame is made of some 4" square tube that I had and some 2-1/2" square tube. I haven't had any issues with it flexing so far. Quote Link to comment Share on other sites More sharing options...
888captain Posted April 22, 2014 Author Share Posted April 22, 2014 thanks for the pic and information jwill. funny how no one has posted until now. makes me feel like i opened a can of worms.If I have crossed a line by mentioning that other site maybe someone could let me know. Quote Link to comment Share on other sites More sharing options...
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