Jig for Rostock Delta Robot View full size

Jig for Rostock Delta Robot

If you're building a Rostock then a quality plywood jig is essential for accurate alignment. This jig is made from laser-cut 6mm-thick, heavy-duty cardboard.  It's lightweight, disposable, and accurate to within 0.1mm.

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This jig will help you accurately measure and cut the top and bottom plywood pieces of the classic Rostock Delta Robot.  It's a laser-cut replica of the original Rostock "plywood jig" SCAD file.  We make these from cardboard because we don't think you'll want to store a rostock jig, unless you build lots of rostocks.

Open-source design files can be downloaded from Ponoko at http://www.ponoko.com/design-your-own/products/rostock-plywood-jig-9587.  You can download the files and have them laser-cut using another material, or even print our rostock jig on a regular printer.

To use this jig:

  1. Measure and mark the center of your plywood piece.  We recommend using pre-cut plywood pieces as recommended by the Rostock BOM.
  2. Draw a straight line from the center to one side.
  3. Use a compass to measure two (2) 120-degree angles from the line in step 2.  We assume you already know how to use a compass...
  4. Drill a (4mm to 6mm = 1/8" to 1/4")  hole in the center you marked. in step 1.
  5. Use the hole you drilled to tack the jig in place.
  6. Use the center triangle in the jig to align it on the first line you drew in step 2.
  7. Mark the position of the screw holes.  Also mark the edge of the large triangle, this is the saw-line for the corner, and is designed to accomodate the printed parts.
  8. Repeat steps 6-7 for the rest of the supports.  On the rostock there are three supports total.


This jig is based on the original Rostock plywood jig published at http://www.thingiverse.com/thing:25000.