3018 CNC linear rail X

Replacement to use MGN12 linear rails instead of 8mm rods. You may need to adjust as appropriate for your printer. There is a bit of binding on mine, possibly due to printer inaccuracy so your mileage may vary. Additionally the supported end of the X leadscrew may need to be moved further out by 1mm or so unless you edit the model. I may correct this if there is interest.

Mounting block taken from CNC mod pack:
https://hackaday.io/project/35101-cnc-mod-pack

The dremel holder plate could be refined to increase travel by moving the holes; I am just using it in the interim until I come up with something better.

This is the mount for Dremel 300:
https://www.thingiverse.com/thing:6915