We also would like to see more versatile and off the shelf solutions for the electronics as few are willing or capable of creating their own boards. Ideally a T-Slot Replicator will be multi-tool enabled with support for FDM, Shape Deposition Manufacturing, CNC_Mill Spindles, Pick and Place and possibly other tools like lasers and Laser Cutters. We feel that the desire to self replicate has been holding back the RepRap device from gaining wider acceptance and also attaining higher performance levels coupled with greater versatility. Here is an excellent source of these materials: This page is dedicated to the creation of a 3D Replicator with a frame based on T-slotted framing.