I’m digging into this so the first thing I did was to establish a baseline for where things stood so we can tell if we’re improving.
I ran a calibration test pattern for my machine just as it was standing without touching anything so it had a pretty dull bit in it and hadn’t been calibrated in 1-2 months.
I got a score of 3.5-1.5 which is similar to what you have been seeing.
Then I wanted to give the current calibration procedure a test. I put a nice sharp bit in and did the calibration process, using all the automatically generated numbers. I found a distance between the motors of 3009.28mm and a rotation radius of 137.9mm.
I did the measure the distance between the motors process twice from start to finish to see how consistent it was and found 3009.71 on the second take.
After finishing the calibration process I immediately ran the test pattern and got a score of 0.96-0.71 which is pretty good. That already seems better than we’ve seen earlier in this thread which is something we’ll need to look into.
Here are all my measurements:
| Long | Short | Long Error | Short Error | Long Score | Short Score |
|---|---|---|---|---|---|
| 901 | 101.25 | 1 | 1.25 | 0.9583333333 | 0.71 |
| 902 | 99.5 | 2 | 0.5 | ||
| 901 | 100.23 | 1 | 0.23 | ||
| 1904.5 | 98.88 | 0.5 | 1.12 | ||
| 1904.5 | 98.97 | 0.5 | 1.03 | ||
| 1905.75 | 98.89 | 0.75 | 1.11 | ||
| 100.01 | 0.01 | ||||
| 100.43 | 0.43 |
Now I am gong to work on computing my chain correction factors and adding them to see how they fit in. I manually measure my motors to be spaced 3057mm edge to edge so 3057-40.4 = 3016.6mm as the true spacing