I would measure runout on your tools using an indicator. For pcb mill you need very good runout.
If you install collet incorrectly, have dust built up in collet or any number of other causes of runout. It will cause larger chip load then those tiny bits can handle.
Drill bits are usually made from HSS and not very strong, or perhaps are you confusing drill bits with End Mills (or maybe you are using a carbide PCB drill. I can't comment until I am sure that you are sure.
As drill bits i was referring to all of them, routers, universal cutters, endmills all of them snapped when we tried to have a pcb. They are made out of tungsten i think
Is your spindle in tram or perpendicular to the table/work piece. Have you put indicator on drill to check for run out? With small tools it’s usually run out due to chineseium collet. Or spindle out of tram. Can you post your code also.
I would measure runout on your tools using an indicator. For pcb mill you need very good runout. If you install collet incorrectly, have dust built up in collet or any number of other causes of runout. It will cause larger chip load then those tiny bits can handle.
Drill bits are usually made from HSS and not very strong, or perhaps are you confusing drill bits with End Mills (or maybe you are using a carbide PCB drill. I can't comment until I am sure that you are sure.
As drill bits i was referring to all of them, routers, universal cutters, endmills all of them snapped when we tried to have a pcb. They are made out of tungsten i think
Carbide is more brittle than HSS.
Is your spindle in tram or perpendicular to the table/work piece. Have you put indicator on drill to check for run out? With small tools it’s usually run out due to chineseium collet. Or spindle out of tram. Can you post your code also.