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Messages - Graham Waterworth

1381
General Mach Discussion / Re: Muti-start threading....
« on: March 31, 2009, 05:48:30 PM »
Program the thread 4 times each time start the z axis 1/4 pitch towards the tailstock. You will need and index pulse to do it.

Graham

1382
G-Code, CAD, and CAM discussions / Re: G73?????
« on: March 30, 2009, 07:18:39 PM »
If the position is changing then you are loosing steps, you need to fix this by retuning the motors or slowing the rapids or reducing the cut size,  a macro will not fix this.

Graham

1383
G-Code, CAD, and CAM discussions / Re: Mach pukes on this code.
« on: March 30, 2009, 01:50:25 PM »
It runs sweet in R3.043.000

Graham

1384
G-Code, CAD, and CAM discussions / Re: G73?????
« on: March 30, 2009, 01:44:57 PM »
G73 is a peck drilling cycle, the pull back is the amount the tool jumps up to break the cuttings.

Graham

1385
General Mach Discussion / Re: Need help
« on: March 30, 2009, 01:19:25 PM »
The F command controls the feed rate of the axis, if you are working in metres then the feed you have is F1000. to move 1 metre per minute,  to make it move 1 metre in 10 seconds then you have to move 6 times faster so F6000. will do this.

Graham

1386
General Mach Discussion / Re: Subroutines broken in 42.023
« on: March 30, 2009, 01:14:28 PM »
Try using R3.043.000

Graham

1387
some pictures and the dxf file of your problem would help.

Graham

1388
General Mach Discussion / Re: Galil And Gcode
« on: March 28, 2009, 08:21:39 PM »
My idea is you can not change the step rate with g-code.

Graham

1389
General Mach Discussion / Re: Software or Mechanical Problem
« on: March 28, 2009, 05:06:25 AM »
1.  If the error is a constant amount no matter what distance you have moved, you have backlash or a loose component.

2.  If the error changes as the distance moved changes you have step count error, the amount is proportional to the distance moved.

Backlash or a loose component is a constant error (within reason) it jerks one way and stops then the axis moves, reverse the direction and the component moves the other way then stops and the machine continues on its way.

If your error is constant then you have the first problem.

Look for loose blocks, belts, screws, anchor plates etc.

Graham

1390
General Mach Discussion / Re: Software or Mechanical Problem
« on: March 27, 2009, 12:57:25 PM »
If you cut a slot that is 5" long is the error half as much?

If YES its a steps per issue

If NO then its backlash/loose component

Graham