F360 Peck Pocket

[Big Man Black T-Shirt(Patrick)]

I need some HALP!

I need to drill 4.6mm holes with a 3.15mm end mill. With a 3.15mm UPcut mill it's no problem, but I want to use a 3.15mm DOWNcut mill, so I need it to pocket out the hole in a Pecking fashion so it will clear out the chips at the bottom.

I've already tried a few regular pocket ops with the Downcut mill and it compacts the chips at the bottom and makes an ugly, oval-ish hole because of the debris at the bottom of the hole.

Peck drilling would be perfect except I cannot figure out how to combine a pocket type op (because I need to make a 4.6mm hole with a 3.15mm end mill) with a Peck operation.

Any ideas?

BTW, I want to do this with the Downcut mill because the rest of the operations use it and I'd like to avoid a tool change. So, if there's no solution, I can do a tool change and use a Upcut mill for the 4.6mm holes and then switch to the Downcut mill for the rest, but I don't wanna!

[Mototech]

The only thing I can think of is to peck drill a hole in the center of the hole(just plunges making a hole the same diameter as the end mill), then profile out with ramping the rest of the hole. Basically I'd create and run a pecking toolpath, then another profile toolpath to open the holes up.

[Big Man Black T-Shirt(Patrick)]

Oct 15, 2018 22:41:09 GMT Mototech said:

The only thing I can think of is to peck drill a hole in the center of the hole(just plunges making a hole the same diameter as the end mill), then profile out with ramping the rest of the hole. Basically I'd create and run a pecking toolpath, then another profile toolpath to open the holes up.

Shit, why didn't I think of that? Thanks!