150mm - Check out the PDF attachment on my first post, most of the important dimensions are on there.
This was the minimum distance to allow for to thk bearings to fit end to end and also give me enough room to fit the nut and mount block behind.
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Very nice job Steve :)
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.
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:
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Another pic below of the finished article, just had to finish it off..!
Charging video camera now, will have vid posted tomorrow for you.
Hemsworthlad, do you have a spindle mount yet for that machine you are building??
Made it all myself, let me know what you want in it and I will see what I can do.
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.
You must be nuts to run at that kernal speed.
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Oh sod it, forget it that joke was obviously wasted ......................