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Topics - shamus13

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1
G-Code, CAD, and CAM discussions / Which cam program?
« on: May 13, 2008, 12:04:17 PM »
Hi,

I have bee experimenting with differing cam programs and am having problems with a particular point.

CUTTER COMPENSATION

I am able to get a shape all the way from a picture into mach3 but cannot find a way to set the cutter compensation so the shape retains it's original size and not undercut it by the tool radius.

As I'm only experimenting I have been using free programs until I find one I'm happy with. I've tried Cambam, Sheetcam & the free Lazycam and this is the only one I've been able to work this out in but it only allows a limited number of code lines to be converted.

So, I'm asking is there a freeware Cam program for me to try that allow more export g-code lines than Lazycam and that is easy to work out how to stipulate a cutter compensation before export?

Something with a decent user guide or advice from a user would be helpful.

Cheers,

Shamus

2
General Mach Discussion / help with lifting z axis
« on: December 11, 2007, 10:31:06 AM »
Hi,
Am wanting to engrave some text amongst other tasks and am unsure on how to set up Mach 3 (demo) to allow me during the program run after the first cut to lift the z axis before moving (jogging) to another part of the work and then dropping again to allow further cuts. I presume you can set this as opposed to manually editing the g code. At present my z axis stays at the same height throughout the whole program (jogging included). My file imports are dxf. Any advice?

Cheers, Shamus

3
General Mach Discussion / Help. Slow speeds
« on: December 08, 2007, 06:12:11 AM »
Hi all,

Just started so still at a novice level of cnc working with Mach 3. Can anyone advice me how to bring up the cutting speed?

I have my motors config to velocicity 93 and acceleration 12, both in mm. when I home or jog the motors run at this speed but when cutting I only get a speed of 1 mm per minute. obviously this is very slow and I want to set the speed upto that in my congig motor settings and home / jog speeds. Any advice?

Shamus

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