size is about 30x30sm, and deepness is 47mm.
I try to use the biggest bit I have - 0.25Inch (High Speed Steel 2 Flute Upcut Spiral bit from Inventable), using standard feed rates - 100 ipm (deepness cut is about 3 mm)
But I don’t like the timing - about 16 hours - I think that is too long.
Is that OK for that size, or I should change feed rates (material is oak, so I’m afraid to break the bit)?
Or probably I could optimize somehow that project?
Did you mean 30 x 30 centimeters or 30 x 30 square meters? You have something wrong in your Vetric V-Carve settings, go back and look through everything again and see where it’s fouling up. Safe travel above cut, rasterizing, etc. If this is 90mm by 90mm and 3mm deep no way that’s 16hrs.
I hope I’m reading this right… you’re trying to cut away 47mm of depth at 3mm per pass, correct? So that’ll take 16 passes if my math is correct (47/3=15.666). And your bit is .25" so I’d be curious what your stepover is. 16 passes in 16 hours = 1pass/hour.
Anyway, looking at your design, you may want to cut out the labyrinth shape as an outline and then put a backer board on it to close it out. That way you’re not trying to cut away all that negative space.