Crack Machine Designs
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I want to put some type of crack machine(s) in the garage for the Winter and would love suggestions on which types of designs have worked for you, and where to find them online or otherwise. I think a horizontal design would work a little better for the space, but am open to a vertical setup as well. Thanks |
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Kerr whats the yellow stuff? |
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https://www.youtube.com/watch?v=-Q6dNCxVo2w |
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Don't half-ass it: This is good too: http://www.supertopo.com/climbers-forum/1912826/how-to-build-an-adjustable-crack-hangboard |
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that crack machine^^^ is awesome! I want to build that in my backyard now.....wonder how they're protecting the wood from the elements. |
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BigB wrote: I do believe it's just texture'd paint. That isn't my exact machine. I found that photo online and am in the process of re-creating one for myself. |
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KevinCO wrote: Do u know how are those mounted to the wood? its hard to tell from the pic |
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I would guess epoxy, although maybe you could use cheap wedge bolts and a hammer drill to bolt the blocks to the wood. |
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BigB wrote: I built it with 2x10s and cultured stone-bull nose that wraps around the edge of the 2x. I got the cultured stone essentially for free at a used building material place (Uncle Benny's in Loveland) because I traded some other materials for it. |
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there's already a forum on this |
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BigB wrote: It is a high quality flat exterior acrylic paint (Sherwin Williams) mixed in with the finest hobby sand I could find, which happened to be at Hobby Lobby. When new it feels like freshly broken sandstone, and it wears down slowly while maintaining it's abrasive character (to a lesser and lesser degree) the whole time. It is like coating the crack in 220+ grit sand-paper, so the wear is bad for the shoes and other equipment, though I prefer that to something with no texture since I find the tissue bruising involved in overly-torquing jams in smooth cracks to be more of a training limiter than having to provide some material for the crack to chew up each session. It would be possible to do a light sand mix and re-apply as needed since the paint dries quickly, so it could dry between workouts. I am proud of that wall because it was a project roughly equivalent to the projects my engineering friends did for their undergraduate senior thesis/projects, including doing the force calculations and deciding on a suitable margin of error strength-wise. The whiole wall is rock solid, barely wobbles when you all-out dyno to the top of the wall (I bolted holds between the cracks and to the top of the wall), and the cracks flex less than a millimeter. |
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Jacon wrote:That's dedication right there. The crack climbing equivalent of a treadmill. I used to put in at least 50 miles a week hiking and running but couldn't last 10 minutes on a treadmill. |
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Clifford Meece wrote: I would guess acme screws or something similar |