Tool diameter accuracy

[JAZZCNC]

It's a cable chain idea based on something I found a while back; it needs reasonably accurate cutting to make it all stay together (no glue or loose fixings) while still being able to articulate.

Don't see the point in cutting these other than the exercise.!! . . . They will cost more in Elecy than they cost. . Lol

The cutting differance will be MDF frame swelling in the morning dew try cutting in afternoon when it's warmed up. .

Now seriously I would check for backlash or end float on the screws and because it's consistant the differance could be the amount of backlash. Try cutting something similair with a larger cutter and see if error is same amount I'd wager it will be.!
After this then check steps per again and make sure it's moving the exact amount it's told. That amount of differance can really only come from either cutter comp or wrong amount of movement, either thru backlash or steps.