workbench
grabcad
I went for for a rack and pionion comb, and sproket and chain for ajustment. acording to calculations on Inventer its got a verry little step, supports 573kg and ajust speed 14.732mm/s. I took off the self products Exept for sheet metal work on legs and table top(wood can be used). I made my desing for easy dismanteling for shipping.
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