I created a 3d image, and used the block machining option in estlcam.
This is my first “real” 3d project, so I opted to use some project/laminated pine. For the most part it all worked ok, but I have some questions about the gcode it produced.
The roughing pass was done with a 1/4" 2 flute upcut bit. All the cuts made by Estlcam were nice and conservative. The finishing pass was with a 1/8" 0 flute upcut but. Some of the cuts were ridiculous, and I’m surprised the bit didn’t break off. It ran a full length slot at full depth (1/4" deep) – one pass! On the exterior edge of the object it would move to a spot, do a full depth insertion and then move along anywhere between a 1/2" and 3/4", then retract. Obviously these cuts are not particulary straight – the whole machine torqued over a bit.
I just “finished” the top side, in the next day or two I’ll be able to do the back side. I’m curious to see how it turns out, but I’m not really holding my breath.
Any thoughts on how to make the finishing pass a little less aggressive?