Here's a sneak peek at the prototype of the laser cut version of the R3 platform with just about everything but the lead screws installed. It's based off of the OpenSCAD models for the milled R3 parts with a few modifications, primarily to use T-slot construction rather than 1/4" threaded rod. I experimented with match drilling as mentioned in the build page and it yielded some very smooth motion on every axis of travel. If all goes well, I should have my R3 prototype up and running for demos at the June 25th and 26th along with my Makerbot, PE00001, in the 3D printer village section!

