Printable drill jig for Rostock plywood parts

thingiverse

This printable jig enables precise creation of top and bottom plywood frames for Rostock delta robot 3D printers. Designed for 350x300 mm plywood, it may allow simultaneous drilling of both parts. A recommended thickness is 12 mm (or possibly 9 mm) for strength, although 6 mm might suffice with high-quality plywood and additional framing. The jig can be printed in PLA or ABS on an 8x8 inch Prusa heated bed. To use the jig, align it along a plywood edge with the center hole over the center line, then drill a 4 mm hole and secure it with a M4 screw and nut. Clamping may help maintain alignment while drilling two additional holes at 120-degree intervals. Mark the outer edges of the jig onto the plywood and cut away the corners for motor bracket attachment using a precision circular saw or handheld jigsaw. Attach motor brackets to each set of holes, drilling through them into the plywood as needed. For those with access to a strong laser, creating a DXF or EPS file from the design and laser cutting 6 mm plywood is an alternative method. If 6 mm thickness proves insufficient for strength, consider using two layers for the bottom frame. Share your laser-cut file on Thingiverse for others to utilize as well.