HI.
I will need to know what kind of machine you have in order to set deep of cut, feed and RPM.
It is a CNC router with a Hitachi M12VC as the spindle (8-25k RPM, set manually). It can rapid at 150ipm. I use 15ipm for plunge feed and 20ipm for cutting feed, which were never calculated but work fine.
What material, thickness.
3/4" MDF
Do you have a way to clear the chips when milling the small holes. 1/4 end mill for a .295 hole will be tough for the end mill if you do not clear chips from the hole(depend of material too)
I have sufficient dust collection I think. I've also cut these pockets using the code from the pocket wizard and it worked fine. My code cut the deep pocket in 2 passes if that helps at all.
Can you drill with you machine.
Yes, but I don't have the right size bits. It can plunge cut with a cc end mill just fine, though.
Is the "0" of the part is at the bottom right corner
Yes...sort of. The way I drew my picture (0,0) is at the bottom right and the X axis moves would all be negative. My table is bigger than what I drew, but I wanted to show where the actual holes should be. If you put the first hole at (0,0) I could line it up where I want it and then the other holes would all be in the right place.
When you say the second hole will be a through hole but stop at 0.005 from the bottom mean that you keep the end mill from going through the part.
Yes, that is correct. I did this with my test holes and there was a tiny piece of material left at the bottom that I could pop out with a screw driver. I don't want all the dust falling on my ballscrew.
If it would be easier I could call you or you could call me. Thanks.