Hammer Robot. This is a 150g combat robot. I'm attaching the .STEP file as well for those who want to edit.
Very simple build that doesn't require many extra tools. Wedges can be printed or cut out of a sturdy material. 0.5mm Titanium is ideal. But Plexi/Acrylic also work as well. If printing scale them in Z to make them thicker
Hammer arm should be cut out of material like Aluminum or Steel. Use the print as a template to cut.
The lego hub has tolerances to printed easily on my printer and be a snug fit, but attaching a tighter tolerance version incase you need it.
You can use #4 Plastite screws for everything (to save on buying parts). But I use #3 for the top armor and top panels and #4s to attach the wedges to the frame
Use a #3 drill bit to clear out the holes in the hammer gear and base uprights.
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