Summary

I needed a 1.75 Roll Support for the MD3. This is what I came up with
I added a couple 3mm screws and V-Slot T-Nuts to clamp it to the interior frame.
This drawing is a mod of the MD3 External Micro Roll Holder.
You need to print 2. The drawing will fit on a 220 X 220 Bed. (I printed it on an Anet A8.
Enjoy!