Adjustable V0 Bowden Strike Block

[jgehrig]

This is a drop in replacement for the Endstop_Strike_Block used with Bowden extruders.

The endstop can be rotated to adjust the X gantry zero point. On my printer, the stock strike block was not large enough to trigger the homing switch before the toolhead crashed. This mod allows the users to more precisely set the zero point.

https://github.com/jgehrig/VoronUsers/tree/jg-endstop/printer_mods/jgehrig/v0_adj_bowden_endstop

[jgehrig]

The printer_mods README.md modifcation includes a line from #323.

That PR should bemerged first, so we don't get a merge conflict or bad link.

[KiloQubit]

@jgehrig are you planning to update the PR to address the review?

[cbc02009]

Closing due to inactivity.