Tinker V16.12.1 (NOT STABLE! Scroll down to 16.1 for stable release)

V16.12.1 is ready for testing

• There have been many reports that this version crashes intermittently even though for some people it seems to work fine. See Issue #56 Version 16.1 is your safest bet for a good stable version with no critical bugs. If you have experienced a crash please chime in on this issue! Anything you tell us (like that no one has told us what printer config they have) might be helpful.
• uses the originally sdcard library (test it, if you have issues like "Tried printing out of printing area")
• invert rotation direction of any axis without the need to re-compile (new menu "Motion Settings -> Invert axis")
• dual versions: separate steps/mm for the second extruder (this is "experimental" / needs more tests)