My brother and I have been working on parametric scad files for a tantillus inspired T - slot printer. This is the github. I liked the drive system and enclosure of the tantillus, but wanted a 6 inch build volume and openbeam framing. It's also designed with entirely metric parts and will use the AirTripper Extruder, instead of the tantillus one. I'm currently working on the last few lasercut parts and the XY carriage. A few designs aren't yet parametric, and I haven't finished fitting all the parts together in Tinkercad, but I thought I'd share this work in progress. I hope to be done with the design by the end of this weekend and start the build in a few weeks.