MPCNC Tangential Knife

### 4th Axis Tangential cutter for MPCNC

*IN DEVELOPMENT*

*Designs and software likely to undergo updates. Please check back.*

#### Recent updates
25/11:

- Published update to gcodetools: manual path selection. Gcode cut order will match path selection order. See github link and manual_path_selection branch. Will merge once I've implemented optionality.
- Printed out geodave's blade holder, and very happy with it. See below.

Older:

- Moved gcodetools to Github.
- Shifted to degrees for the turn magnitude, firmware changes required
- Added support for full command by command speed control in the generated gcode
- Switched away from the pineapple, and adopted a metal 5mm to 8mm coupler
- No more thread moving inside the skate bearings - fashioned a smooth rod threaded at one end and clamped straight into the thread coupler - no top bolt, spring tension controlled by adding or removing washers. Not a critical update, more to follow.

See below for detail