So… confirmed. I downgraded with the following process:
- took down maslow from frame.
- Saved off my calibration numbers.
- uploaded 0.64 firmware, index.html.gz, and maslow.yaml (after entering my frame points)
- power off/on.
- verified Z machine zero looked reasonable (fluid tab, zm): it did NOT look right so I floored Z, powered off / on. saw that zm = 0, then moved z up and put in a bit.
- retract /extend / hang/ apply tension/ jog around. (see note 1 below).
- Tried @dlang 's manual calibration page and looked at the numbers from manual measuring vs my old calibration and decided to use dlang’s numbers (they were only a few mm off from what I had).
- power off / “re-hang dance”.
- jog around (see note 2)
- set workpiece home x/y
- loaded my laundry sign gcode
- set z home for job and
- CUT! (vacuum on, router on, bit in, LETS DO THIS!)
- SuCCESSSSSS! I can’t tell you how happy this makes me for two reasons:
1. The obvious one that my wife will now be happy (after some sanding and painting and mounting
)
2. It is almost certainly software (firmware), and we can figure this out!
Note 1: when jogging this time, the belts were TIGHT. I was afraid to run a job, so thought I’d either calibrate or try dlang’s calculator. Given how I remember calibration was back in this version I opted for the manual one and measured as best I could, got my numbers and proceeded.
Note 2: When jogging this time, the belts were tight but not as much and it “felt right” so I sent it. The belts felt significantly tighter (in a good way) than with current firmware, so I’m not sure what that might be other than the threshold that this firmware uses is better than what I had set