Smoother ARC support
Hi Sirs! Thank you advance for your good job ! I have question about precise of ARC support. Repetier i use for hobby on CNC3020 china machine and only for milling. If i made small vias about 2mm diameter by support function G02/G03. It is divide on segments and hole do not looks good So I tried change "MM_PER_ARC_SEGMENT 1" value on "0.1" Now it's great but..... in fast speed is it nonusable. Machine not running smoothly. I don't check if it's run back on start position (lost pulses?) I understand that Mega2560 has no enough computing capacity, or is it any way to make more precise? My idea is buy arduino Due, there is more computing capacity. Is it good steps for me? I tried build new firmware from your side on DUE type and in code is still "MM_PER_ARC_SEGMENT 1", i understand it is no important for another user with real 3D printers. Oscilator on DUE is more times quickly, but is real that benefit will be sufficient ? Thank You advance for answer, BR Alexandr.
Comments
Might be too heavy on AVR , as it´s a threaded rod driven machine.
if you want high Speed on G0 moves you should change to DUE,
but playing around with step adjustment (Think quarter step is ok for that)
will give a compromise between Speed/Resolution.
i also have a rod driven machine and changed to due because of Speed reason.
regarding arcs i increased buffer to 80, runs fine