Messages

1401

General Mach Discussion / Re: help with tool length offsets

« on: March 26, 2009, 02:24:19 PM »

When setting up your machine there are 2 common ways to do this.

Tool 1 is your datum tool.

Your datum tool (Tool 1) is used to touch on the Z datum face of the part, the machine is zeroed at this position and all other tools are then touched on the same point and the difference in length is then entered into the offset for that tool.

The problem with this method is that if you change tool 1 for a different tool 1 then all offsets need to be reset to the new tool.

Or

A probe or setting tool.

You use a probe (Tool 0) to touch on the Z datum face, zero out the Z axis at this point then touch each tool on the face and set every tools offset with the difference in length from the probe.

The advantage of this method is that all tools have a offset to a standard tool/probe.  If the probe is placed into a setting holder and a height gauge placed on the top and zeroed out the next tool can be put in the setter and the height recorded for that tool, this is then the offset for the machine for that tool.  This offset will not change unless the tool is moved in the holder or needs to be replaced.

Graham

1402

General Mach Discussion / Re: Rotational milling speed?

« on: March 21, 2009, 10:03:17 AM »

OK,

turn the watchdog off in config and change the limit switch debounce to a much bigger number e.g. 2000

Try this and let us know how you get on.

Graham

1403

General Mach Discussion / Re: Rotational milling speed?

« on: March 21, 2009, 08:31:20 AM »

Are you getting an error message ?

If it is a watchdog error then in general config you can turn the watchdog off.

Graham

1404

General Mach Discussion / Re: I'm just a tease

« on: March 18, 2009, 06:32:41 PM »

Great news on the offset shift, that is going to make setting up much easier.

Graham

1405

General Mach Discussion / Re: combining 2 g code files

« on: March 18, 2009, 10:26:59 AM »

Store your file in the subroutines directory within Mach and call them with a program like this

O0001 (MAIN PROGRAM)
M98 (SUB_PROG1.TAP)
M98 (SUB_PROG2.TAP)
M30

Graham

1406

General Mach Discussion / Re: Mach3 condition abnormal light

« on: March 12, 2009, 03:58:25 PM »

OK, double click the abnormal button and click yes in the pop up window.

Reload Mach3 and see if all is well.

Graham

1407

General Mach Discussion / Re: Mach3 condition abnormal light

« on: March 12, 2009, 02:45:57 PM »

If you click the abnormal light/button it will tell you what the problem is, what is the problem?

Graham

1408

General Mach Discussion / Re: HELP!!!! Please abnormal condition Mach3 - Rhinocam2 PROBLEM

« on: March 12, 2009, 06:06:58 AM »

What is the message in the abnormal list telling you.

Your last code blocks look fine. The only thing I would remove is the G40.1

Double click the abnormal button and select yes, this will make that condition normal, then try your code again.

Graham

1409

Third party software and hardware support forums. / Re: z axis repeatability problems

« on: March 12, 2009, 04:33:08 AM »

Try slowing the Z axis down in motor tuning, it could be that you are loosing steps on the rapid moves, increase the acceleration time so the motor has more time to get up to speed.

Graham

1410

Show"N"Tell ( What you have made with your CNC machine.) / Re: Building a 4th Axis from scratch.

« on: March 09, 2009, 04:25:07 PM »

Try this :-

Graham