Watched (or most of it) the video… I think it’s being handled backwards by the approach but if it worked for you … great …
These set up rather easily once you understand how they work…
There is no need for knowing the diameter other than with the artwork with a ‘wheel’ or ‘roller’ rotary. It has no effect on how the machine works and complicates his ‘setup’…
IMHO… start at the begging and when you get to the analog stuff you can make adjustments.
This is the basic setup, which is where the video should have started… it works fine most of the time…
The system is digital up to the motor output shaft. After that it’s a ratio to turn the drive wheels, which you probably can’t change and the driving wheel diameter, which can change and the adjustments should probably occur there.
If it’s working for you … great…
You don’t need the diameter to test it either. Put your tape on and draw your 100mm rectangle… it should be 100mm no matter what diameter… the Y axes should translate directly to your ‘object’…
Good luck…
