Ok, so I've searched and I'm not sure what forum to post, but as I'm using a home built CNC router I figured I'd start here.
I noticed when cutting .125" deep, with a .125 overlap with a 1/4" router bit with a 1/4" shank I was getting some bit defelction, even running at 10 IPM. I don't remember too well because this was months ago, but I think I slowed it down even further and still got defelction.
I now use a 1/4" bit with a 1/2" shank and I don't get any defelection, it's also a high grade new bit.
So what I need to know and I'm sure a lot of us noob could use the knowledge as well are the specifics.
Even though YOUR machine can traverse at 120 IPM. What is a realistic cut speed and depth of cut and overlap of cut for different material. Also what bit.
So for plywood, hardwood, plexiglas and plastic. I would like to see a format something like: Plywood, 1/4" Router bit, 15 IPM, .125" depth of cut, .125 overlap, you know something like that. Of course add in if coolant is needed or even you standing over the part with a spray bottle, as in cutting plexiglas or plastic, if it's necessary.
Also when, aside from cutting metal, would an endmill be of use, if at all? I need to mill some plastic project boxes to make my Pendent Control and I don't want to buy another router bit when I have an 1/8" endmill already. If I can use an endmill should I run it at 22,000 RPMs? On that note, how does cutting speed and amount of material removed at a time correspond to professional CNC Mills work when they run at 10,000 RPM? I always wondered because I use a formula to figure out the RPMs on my Bridgeport to calculate rate of cut for bit size. I didn't think it had to do with the machine but just laws of physics with regard to a bit being able to remove material.
Anyway, any help would be appreciated.