Messages

4941

General Mach Discussion / Re: Mach 3, wierd infinite feed rate problem

« on: June 27, 2010, 08:08:52 PM »

Is that a full circle, or an an arc that's .0001" long? If it's a really short arc, that's probably what's causing the problem.

4942

General Mach Discussion / Re: Mach 3, wierd infinite feed rate problem

« on: June 27, 2010, 06:19:02 PM »

I think it's related to G64. Try it in Exact Stop mode.

4943

General Mach Discussion / Re: Relationship of Velocity/Accel to G0...

« on: June 26, 2010, 11:28:47 PM »

You might want to try asking this on the Yahoo group. I may have seen an answer to this before, but don't remember. Art or Brian might have the answer.

On my PC, I get exactly the same performance in motor tuning and running g-code.

4944

VB and the development of wizards / Re: Y, U, V Change X DRO

« on: June 26, 2010, 10:12:21 AM »

The machine is a beam saw. Sheet goods are clamped and moved along the table, and stopped for the saw to make cuts. The X axis is probably the sheet movement. The saw carriage should not be any axis.

My guess is that the code outputs other axis for crosscuts. On a typical beam saw, the saw first rips the sheet into multiple strips, Then, each strip is placed back into the saw to make the crosscuts. So, both X and Y cuts on the material are done with one axis on the machine.

The biggest hurdles here is trying to make Mach3 do what it's not designed to do.

A better option imo is to modify the software output to something that works with Mach3, rather than trying to modify Mach3 to work with other software.

4945

FAQs / Re: dfx to gcode

« on: June 25, 2010, 07:36:06 AM »

Here's a link. Read the .pdf and feel free to ask any questions.
http://tinyurl.com/yglfz3e

There's also a thread at CNC Zone.

http://www.cnczone.com/forums/showthread.php?t=8226

4946

General Mach Discussion / Re: Relationship of Velocity/Accel to G0...

« on: June 25, 2010, 07:32:32 AM »

Try the accel at 20

4947

General Mach Discussion / Re: Relationship of Velocity/Accel to G0...

« on: June 24, 2010, 07:45:56 PM »

So if you set the velocity in motor tuning to 425, and do a G0 X500, the motor will still stall? What's the accel set to?

4948

General Mach Discussion / Re: Relationship of Velocity/Accel to G0...

« on: June 24, 2010, 06:08:35 PM »

What if you do G0 X500? You should get a blended speed over 600 with one axis moving. Dos it still do it?

If it does, try 35Khz mode. And get a PS2 mouse.

4949

General Mach Discussion / Re: Problems Setting Home limits, table size etc

« on: June 24, 2010, 06:04:49 PM »

   Can I tell just a single axis to go "home" to test it out before tackling the other axis?

Diagnostics page, top left .
Ref X
Ref Y
Ref Z
etc.

   When I manually jog the table to home and all three home switches activate, how to I tell Mach3 that this is Home.

Doesn't work that way. You need to use the Ref buttons to home. Once you do that, then Mach knows where home is.

   My DRO's seem to be reading twice the actual table movement ie" I get a DRO reading of 72 for 36" of actual table movement.

double your steps/unit in motor tuning.

4950

General Mach Discussion / Re: Relationship of Velocity/Accel to G0...

« on: June 24, 2010, 11:52:42 AM »

How do you mean? AFAIK you can't RUN the motors from the tuning dialog.

Use the up and down arrow keys.