Designed to be a replacement for the plywood on the rostock. Hopefully will make a triangle-like frame out of 5/16" threaded rod to connect the top and bottom of a Rostock Delta Printer I designed this mostly as a hardware sourcing ability, but it could also be used to add a more expandable approach to making a rostock? UPDATE 10/13/14: I found an obvious mistake once these were printed and I was assembling the part. Captured nuts DO NOT work in the way I was trying to make them work. You must be able to tighten both sides much like my Prusa i2 is designed. Will be updating the files soon. In the meantime I uploaded the source .ipt's UPDATE 4/22/2015 I reworked the files after abandoning and forgetting about the project. I think it might work better, but it still needs a cross brace to be effective. Source files and STL's have been updatedI printed in PLA at .2 layer heights, 40% infill. Screws down to Rostock Motor mounts and Rostock idler pulleys.