FlatLiner Posted March 5 Share Posted March 5 Interesting take on a treadle hammer. https://youtu.be/BL9vCX74LDA?si=Z3d1lvqt24auZkTk Quote Link to comment Share on other sites More sharing options...
JHCC Posted March 5 Share Posted March 5 Cool idea, and very creative approach. My only qualm is that he’s not getting any mechanical advantage out of his linkage, but that’s a minor detail. Quote Link to comment Share on other sites More sharing options...
Frosty Posted March 5 Share Posted March 5 And ANOTHER treadle hammer hits the web! Pretty good for a basic treadle hammer but I have a couple issues with the as built machine. As John says there is no mechanical advantage between treadle and ram, I don't want to have to move my leg the full stroke distance. A 1: 2or 3 ratio not only reduces treadle stroke length, it moves the ram 2-3x as fast so it strikes geometrically HARDER. Less work, harder blows with longer strokes. Hmmm? A mechanical linkage to multiply treadle: stroke distance doesn't need to be 2'+ long. His rear hinges would benefit greatly from a couple $2, 1" weld spacers and hitch pins. That simple mod would make wear to rebuild times many times longer. Greasing the hinge would be as simple as smearing a drop on the hitch pins, sliding them in and turning them. This kind of thing is what hitch pins are designed for, My snow plow hinges on two 5/8" hitch pins since 2011 and once you get the weight off they slide in or out with fingertip force. Most of what I see are construction details like the lack of even one diagonal stiffener in the entire frame. UHDP cutting boards cost almost nothing, I bought a package of 4 for under $4 to use on friction surfaces in the shop. Grease collects dust, grit and airborne . . .stuff where UHDP doesn't. Sure airborne . . . stuff gets on it but a careful shot with an air hose makes it clean. You can form fit it easily, I warmed up a piece of the inner tubing in my shop toaster oven to 300f. Laid the plastic on it and wrapped it with cotton webbing, then cooled the tubing with an electric mattress inflator blower. Because I have a number of those yard sale buy list blowers. UHDP is too easy to work not to use. I like how he mounts his dies, lots better than many systems but I haven't used one like his so that's just an eyeball estimation and wedging the bottom die so it's sucked tight on the base is just another little construction detail. I'm not crazy about not being able to pass stock lengthways through the dies either. It may not be an everyday thing but you never know when you'll need to punch a line of screw holes in a rail cap or maybe swage a curved cap rail, fuller a sword, etc. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
JHCC Posted March 5 Share Posted March 5 He's got a couple of follow-up videos that I haven't watched yet. Quote Link to comment Share on other sites More sharing options...
Scott NC Posted March 6 Share Posted March 6 I think I may build my own version of this. Thanks for sharing Flatline. Either this or a Nodding Donkey. I tried to edit and typed out a whole lot and it went "piff" into the ethernothing. I think the edit window is 15 seconds. Quote Link to comment Share on other sites More sharing options...
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