I made this tool for setting the knitting tension on my CSM (sock knitting machine). I have the model designed by RkStar42. So this tool works on this machine but might work on others too.
I find measuring below the cam (green on my machine) works best and mostly use the 7 & 8 mm tools for sock tension. Each disc has 6 sizes in quarter mm steps, so each disc also has the two largest sizes of next smaller disc. So print them all or measure on your machine first.
The author marked this model as their own original creation.