Hello all,
I have a good machining background, and am not brand new to cnc, but I have a few parts that I want to make that take forever, and I am trying to speed up the process.
Here is the machine I am running-
Sherline 2000 mill with A2Z x and y upgrades, including Kerk 4tpi zero backlash lead screws
Sherline drivers and steppers 135oz
I am running a 3/8 carbide 3 flute endmill with a 1 3/4 LOC, the part is 1.5" deep.
Running 3000 rpms, with doc at .020 and 20 ipm feed, the machine howls like a banshee, and the finish is poor. At doc .010 and the same rpms and feed, it rips right along, but it takes forever to make the part (well maybe not forever, but about 2 hours). Most of the feed and speed info I can find doesn't take into account the size of the machine. I am not missing steps. it is just a matter of getting a decent finish , and cutting most efficiently.
Any help or info would be greatly appreciated, thanks for your time,
Nick Gardner