2 smallest ones on the right.
Type: Posts; User: brownandsharp
2 smallest ones on the right.
I only use upspiral endmills for acrylics. for delrin, nylon, and abs. i use hi helix hss with great results.
typically for a 1/2 cutter, .5 doc 40% tool dia. i'll feed 160 ipm @ 7000 rpm
also...
if you are adamant on sticking with 2800 rpm. go 20-25. ipm. on that drill.
don't worry it wont break.
what you can do is give it a tighter tip angle .. and make sure it is SHARP!!
i machine delrin alot and don't use any coolant just blast it with 2 air nozzles about 90-110 psi.
sharp cutters cannot be emphasized enough when cutting plastics.
2800 rpm is too much rpm for...
hi all.
i crashed the power feed motor on my bridgeport. I hadnt noticed the stops werent were they were suppose to be and WHAM.
right into the motor.
now it wont work
i opened it up to...
whats the highest rpm your machine can go?
NTMA,
8 months pre-employement training. then they sent me to work @ $8 an hour, employer sent me back to NTMA for cnc programming 1 & 2, then I went back for mastercam 1 & 2.
now I make 3 times...