This is a relatively modern version of the Marlin printer firmware, customized for the Monoprice Makerselect v2 / Wanhao Duplicator i3 printer.
By modern standards, these printers don't have a lot of flash, so fitting new features is difficult. I've managed to hack and slash until there was room to add
- All the bugfixes from the
bugfix-2.0.xbranch, - BLTouch support for automatic Z homing, and
- Bilinear bed leveling and correction.
I've also tuned the basic machine properties to match the behavior of my printer.
I haven't gotten the 2.1.x branch to fit. You might be able to pull it off if you remove BLTouch support.
You will need platformio. I can't figure out how to enable the appropriate
optimizations in the Arduino IDE.
With platformio installed, the key is:
platformio run -e sanguino1284p_optimized
...where the _optimized bit selects an alternate version of the Sanguino
environment with more aggressive compiler optimizations. (I didn't create this,
it was there all along.)