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Messages - Sheldon Dingwall

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11
General Mach Discussion / Re: Jogging in 3 axis problems
« on: March 17, 2009, 08:04:18 PM »
I haven't had time to follow up on this.

It appears that the angle the z travels at in relation to the horizontal plane determines if the head moves at jog speed or move speed.

In other words as long as the z is traveling at a very low angle let's say less than 10 degrees, then the head will move at full jog speed.  If the angle is greater then the head will move at cutting speed.  This hasn't caused any accidents yet, but a few surprises when you're expecting the tool to "move" to the next cutting location and it rapids there.

There must be a setting to adjust this angle somewhere.  Thanks

12
General Mach Discussion / Re: Problems with a Dual Z
« on: November 14, 2008, 04:50:59 PM »
More ruined parts today.  The problem seems to come and go.

What I noticed today is that if there's going to be a problem, it happens when Mach first loads the part file and runs through the code.  Randomly it will not switch completely back to the main Z head even though there was an M101 command at the end of the file.  I've tried inserting pauses in case it's a timing issue, but no luck.

Here's a small file for verifying center.  It's working fine now, but when I first used it today, I had a Z swapping issue and crashed into the part.  Re-set everything, tried an air cut and it worked fine, mounted a part and had another crash. >:(

M101

G0 X0Y0

M102

M8

N10 G00 X117.839 Y10.975 Z45.000
N11 X117.839 Y10.975 Z38.000
N12 X117.839 Y10.975 Z114.000

M9

M101

G0 X-700

13
General Mach Discussion / Re: Static causing positioning problems?
« on: November 12, 2008, 07:20:03 PM »
Hi Rich,

I've been away.  Thanks for responding.  The motors run pretty cool.

14
General Mach Discussion / Static causing positioning problems?
« on: November 07, 2008, 10:38:29 AM »
My machine lost it's positioning last night on the last part.  Everything was working smoothly the entire day.  The only thing I can think of was that I was vacuuming near the machine and at one point I got a static electric shock off the vacuum.  My back was turned to the machine so I can't say for sure if the timing was coincident.

The vacuum is on a separate circuit.

Any thoughts or suggestions?  UPS?  How do you determine the size of UPS?

15
General Mach Discussion / DRO's way out when re-starting
« on: October 12, 2008, 03:11:01 PM »
I've got Persistent DROs checked in General Config, but when I re-start Mach, they're consistently 5000-6000 mm out.  Am I missing something?

16
General Mach Discussion / Jogging in 3 axis problems
« on: September 12, 2008, 07:55:44 PM »
This wasn't a problem until I upgraded Mach to the latest.

When jogging in 3 axis most of the time the head travels at move speed now.  Not always though, usually at the start of a file when the machine rapids to the first position it will go at normal speed, but during a file, when it rapids from one location to the next it moves at cutting speed if it's a 3 axis move.  2 axis rapids work as they should.

17
General Mach Discussion / Re: Problems with a Dual Z
« on: September 04, 2008, 12:36:10 PM »
I'm a little embarrassed.  My manual said version 1.84, but when I hovered my pointer over the Mach 3 file it said Version 1.0.0.1.  I installed Version 2.63 yesterday and will be running some dual Z files today.  I'll post the results.

On the plus side, I've been holding off upgrading due to still being a bit overwhelmed with the new system.  Not having a step by step upgrade guide had me a little apprehensive, but the upgrade process went smooth as silk.

18
General Mach Discussion / Re: Problems with a Dual Z
« on: September 02, 2008, 06:33:39 PM »
We're getting close, I can feel it ;)  Thanks for the help with this.

19
General Mach Discussion / Re: Problems with a Dual Z
« on: September 02, 2008, 04:43:27 PM »
Thanks Hood.  The M7, 8 & 9 are just output triggers.  They are working fine.

Here's the M101, 102 macros.

20
General Mach Discussion / Re: Problems with a Dual Z
« on: September 02, 2008, 02:28:04 PM »
This is the last file I ran that was making me nuts.

It starts with a Z2 move.  Consistently it would start routing using the Z1 offsets.

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