I know but it is still not the same as cut from stock.. the material is more sensitive to dents and scratches an
As you need supportmaterial you will have to ease th scars after cutting loose.. tolerances are about factor 10 better than you would need for e.g, a pressfit bottom..
This is about shaft to hole tolerances for a given nominal shaft with h7 IT similar table is also available for a nomjnal hole H7 IT the letter tells the tolerance field and the Number tells the quality of the dimension tolerance
Smaller number is better tolerance but more difficult to manufacture..
Passungssystem - Einheitsbohrung & Einheitswelle
I know what you are talking about but as you see the steps... you will not have much fun with it.. Its a thermal process in a heat conducting material..so the heat spot is not 0 dimensional but affects the particles around.. so you may achieve tolerances within the 0.xmm area but you need 0.0x mm for the normal tolerances between watchparts..
On the job we do this process in Polyamide and Aluminium but I would not recommend both for watchparts..
Perhaps your process is better but a German watchmaker did the step you plan to do. Here it is Alumide Material.. rather middle of the pagd..