Kossel Mini 4 Wheel Carriage

After I built my Kossel mini with 1515 extrusions I felt the recirculating ball carriages were too tight and I wanted to build new carriages with stuff I have or could get locally. I like having 4 wheels instead of the usual 3 wheel designs. The 4 wheel design was also dictated a little by the smaller Prime Line wheels I found at Home Depot. I don't think there's any more wiggle in the carriage then there was with the recirculating carriages which was very rigid and stable (possibly because it was so tight). The new carriage moves more easily with the wheels compared to the delrin ball carriages. I did lose a cm or so of build height because the traxxas mounts are a little lower than standard. I might move them higher in a later version, but I'm just happy to have it printing so I'm not sure I'll get around to that. Besides, mechanically I feel better about them being between the mounting screws. It seems more secure and less susceptible to any warping of the print.

There's a phot