Geeetech Octogon

Geeetech Octogon:
Please note this design is a proof of concept - all the measurements should be fine but I've not had time to print it myself.

04.10.2020:
A small update, Octagon_New.123dx and OctagonProbeMount.stl
If you are using the OEM bed probe, and why not, I hadn't provided a spot for the probe. This fixes that omission.
When you open the OctagonPrint.stl file in your slicer add the OctagonProbeMount.stl file if you want the mount. The idea is to line the latter up with the former so the effector arm mounts line up exactly and combine the two in one gcode file for printing.
You will then have somewhere to screw the plate from the OEM effector head and so a mount that will function much as it did before.
Notes:
-You will need to re-calibrate the probe as the height compared to the hot end is different. Ideally you will want to change the offset in your Marlin (or other) firmware as the X/Y offset is no longer zero. For practicality's sake it doesn't matter enough to wo