Messages

311

General Mach Discussion / Re: Cutting Circles

« on: November 15, 2007, 05:23:47 PM »

rkjohn

loaded that circle program in two differant lcam programs here ,they loaded well.that makes it a stronger case to look at the video card and drivers.

312

General Mach Discussion / Re: Cutting Circles

« on: November 15, 2007, 04:36:40 PM »

rkjohn
lcam is having some problem with arcs,they are working on that.
you say your backlash will measure pretty good with a dial indicator,so you might have to consider this.
my machine fliped out 6 weeks ago,and was cutting a circle that looked like yours,but not as bad.
the problem was in my device drivers.when i upgraded mach some how it messed up some drivers and the machine started cutting weird.
the worst one was the video driver.then the printer port.try uninstalling and reinstalling drivers.

313

General Mach Discussion / Re: Cutting Circles

« on: November 15, 2007, 03:53:45 AM »

rkjohn

      if you can run a .250 end mill this cuts a 2.5 circle. it will make two rough passes and one finish pass.

      g00 g20 g91.1
g00 z.100
g00 x-.975 y.975
g01 z-.250 f25
g02 x-.975 y.975 i.975 j-.975
g01 z-.500
g02 x-.975 y.975 i.975 j-.975
g01 x-.9723 y.9723
g02 x-.9723 y.9723 i.9723 j-.9723
g00 z.100
g00 x0 y0
m30

314

LazyCam (Beta) / Re: Offsets on circles

« on: November 14, 2007, 06:56:31 AM »

when you outside offset a .500 circle with a .125 cutter lcam will show two circles .500 and .625 then you have to delete the .500 circle before you generate the code.if you don't it will cut both circles.

315

General Mach Discussion / Re: Calculating What kind of power i need for rack and pinion 4x8 table

« on: November 14, 2007, 12:04:37 AM »

looked up the torque and speed for your motor at the keling site.at 1000 rpm motor strength is 1/10 of the rated value.I do not believe you will ever see 3000 rpm.

316

LazyCam (Beta) / Re: Offsets on circles

« on: November 13, 2007, 11:40:33 PM »

twice the radious of the cutter. rad .0625 plus dia .500 plus rad .0625 = dia .625

317

LazyCam (Beta) / Re: pocketing snag

« on: October 22, 2007, 11:24:40 PM »

ART or BRIAN

With lcam 2.56 i found that if i scale the drawing up 4 to 1 in order to increase all the radious.then do the offsets
and the pockets.then downscale the drawing back to 1 to 1,then output the g-code,i can make it work.

bill

318

LazyCam (Beta) / Re: pocketing snag

« on: October 18, 2007, 10:52:50 AM »

downloaded lcampro 2.55
offsetting still no good
3 files attached

319

General Mach Discussion / Re: "Mach Con", (Mach Convention South East)...any interest????

« on: October 16, 2007, 09:00:55 AM »

knoxville is perfect

320

General Mach Discussion / Re: "Mach Con", (Mach Convention South East)...any interest????

« on: October 15, 2007, 11:47:54 PM »

poppabear

good idea,post when and where.i'am located in myrtle beach,sc.

bill