Rockwell Jawhorse Replacement Jaw

thingiverse

My Jawhorse has been an exceptional tool, far exceeding expectations in every way. When my original urethane jaws began to disintegrate while clamping a bar, I knew I had to replace them right away. Online replacements cost $50 to $80 USD - that's outrageous for a simple part. So I set out to print new ones myself. I printed my set using Taulman Bridge Nylon and Alloy 910. PLA is completely unsuitable; it's too brittle to withstand the stress. ABS and PETG may work temporarily with low infill, but you really need the flexibility and toughness of Nylon or PC - there are no exceptions. CF Filled Nylon could be an option, but you need a certain amount of give when clamping parts so as not to deform them. Feb 9 2019 - I've added screws and nuts to secure the outside holes in the jaws. The original jaws have a nub that sticks in, but these work well and are easier to print without support than the nubs on the back of the jaws. I added a long bolt and smaller star nut for replacing the 2 jaws on the sliding portion of the Jaw Horse - they haven't been tested yet.