Enough of the geared design for now. I attached the real 444mm GT2 closed loop belts today & they make the world of difference over the TPU 3d printed belts. I adjusted the steps per mm once, but am still 102.5mm instead of 100mm. Will adjust it closer next time I run it. I am really happy with its performance now. Here is a video drawing a 180mm diameter flower of life design. The outer circle measures 185mm along wheel axis & 180mm along the v-slot axis.
There is a little gap where the pen up/pen down occurs, but it drew back over those circles almost perfectly.
