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01-08-2009 #11
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01-08-2009 #12
Very nice job Steve :)
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01-08-2009 #13
Just been playing with my new toy.
Just made this.....
Cycle time 7 mins
Cutter - Solid carbide 6mm dia 3 flute endmill
Spindle speed - No.2 on Kress router
Depth of cut - 2mm
Feedrate -800mm/min
Made a bit of noise and a lot of mess but i am quite impressed, just did it all in one pass, next time i will rough it and finish it then it should come out even nicer.
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01-08-2009 #14
Yabut when Kip gets his free to a good home plasma working it will do the same thing in 5 seconds in hardened steel to 4 microns.
Alltogether now "We don't want no skeenking alloy"
:rofl:
.John S -
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01-08-2009 #15
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02-08-2009 #16
Made it all myself, let me know what you want in it and I will see what I can do.
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02-08-2009 #17
OK latest update...
Been trying to mill a 3D rooster from the Cut 3D demo program this afternoon and found a problem with my machine, after doing a finishing cut with a 3mm ballnose it returned to x0 y0 and was about 3-5mm out. I put it down to loosing steps and tried different settings in the motor tuning by changing the velocity and accel, made absolutely no difference at all.
Then I remebered that I had upped the kernal speed when trying 1/16th stepping so I dropped it down from 45k back to 25k and hey presto, no more lost steps, in fact the motors are running a lot smoother and the ballscrews vibration seems to have dissapeared.
Don't fully understand this so if someone could explain why the kernel speed was so critical I would be interested to know.
I am ruuning mach on an old compaq P3 866mhz machine but in the driver setup program it said it was running 'excellent' at 45k.
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02-08-2009 #18
You must be nuts to run at that kernal speed.
.John S -
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02-08-2009 #19
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02-08-2009 #20
Oh sod it, forget it that joke was obviously wasted ......................
John S -
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