Download GWizard: http://www.cnccookbook.com/GWizard/G...nstall1SC.html
What ipm did you run the 22k at? The 165 should run at the same relative speed slower in order to keep the chipload the same.
I broke my second bit yesterday, slowing down my feed rate running around 16500 RPM with a 2 flute hss end mill.. um .294 D
I couldn't get a decent finish the slot was very grainy feeling, and with the single flute there were clips left all over in the cut.
Using some sort of water based coolant with automatic sprayer.
I was getting a near mirror finish running at 22k but this is a different machine and 18k is max.
Where I'm mainly getting stuck is in the speeds and feeds calculations. I've never done one, I do this all by ear, how every thing sounds when cutting.. I see those calculations and my mind just buckles.. Where do I get these numbers from? How do I figure the chip load???? or WHATEVER!! Melt down...
I'm not up to speed on the CNC proper terms and lingo, but the machine's software reads IN.. In example half inch would be .5
I ran at .15 at 22k with a 5mm end mill.
.15 at 20k with an 8mm.
I ran into problems when I went to .15 at 16k this bit snapped right off
This was a 2 flute, but its was cutting just fine at .25 and .2 ipm
finish was still grainy and rough with scratches but no chips!
I AM able to post pictures
Tried to run Gwizard, click speeds and feeds, says my copy is not authorized. You ever think about that word? Author? Its like back in the day only certain people with certain information had the Authority to write a book. I guess we're on a need to know basis :-)
That's it, blame the world for you breaking end mills, that should solve everything.
haha! nice fatal-exception
I dig your pick, almost looks like an open wheel midget car frame.
Hiya dlange, try this link "http://its.fvtc.edu/machshop3//speedCalc/SpeedRPM.htm" as a starting point. clamping and quality of tools and materials will influence final speeds and feeds - see how it enlightens