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Search: Posts Made By: Greolt
Forum: MechMates already cutting Sun 22 April 2012, 18:39
Replies: 1,078
Views: 161,728
Posted By Greolt
Art Fennerty, the author of Mach3, has always...

Art Fennerty, the author of Mach3, has always said that feedrate override should be used to slow an axis more than speed it up.

As a principal, get used to increasing the feedrate in code and then...
Forum: Troubleshooting Tue 18 January 2011, 06:05
Replies: 3
Views: 1,550
Posted By Greolt
Paul One thing I have learned after much...

Paul

One thing I have learned after much head scratching,

Run is 0000h and direction is 0001h.

0002h is the register to send an alarm command.

I know...I know......that is not how the...
Forum: Troubleshooting Mon 17 January 2011, 16:10
Replies: 35
Views: 8,294
Posted By Greolt
Ross, I also admire your perseverance on this...

Ross, I also admire your perseverance on this Modbus thing.

Although modbus would be the bees knees there are other options.

Peter Homann makes the Digispeed right here in Victoria.
...
Forum: Troubleshooting Wed 22 December 2010, 17:22
Replies: 35
Views: 8,294
Posted By Greolt
Chris I have all this to learn. Mostly the...

Chris

I have all this to learn. Mostly the reason I am having a go at it. :)

Looking quickly at the link Bradm provided (thanks) it looks like RS485 is two wire. This lines up with the info...
Forum: Troubleshooting Wed 22 December 2010, 14:38
Replies: 35
Views: 8,294
Posted By Greolt
Thanks Chris

Thanks Chris
Forum: 10. Base Table Thu 23 September 2010, 18:47
Replies: 9
Views: 2,898
Posted By Greolt
Sorry to jump in here but that terminology is...

Sorry to jump in here but that terminology is likely to cause confusion.

Gcode has a G90 mode, absolute coordinate positions and G91, relative positions.

What you are describing are Machine...
Forum: 80. Computer Hardware & Software Sat 11 September 2010, 16:24
Replies: 6
Views: 3,735
Posted By Greolt
It is a product of the resolution. Steps per...

It is a product of the resolution. Steps per inch/mm in motor tuning.

Internally Mach knows the count is 6.6 units, but can only put out pulses to the nearest step.

Depending on the steps per...
Forum: 70. Control Systems Wed 04 August 2010, 17:41
Replies: 21
Views: 2,687
Posted By Greolt
John I think Sean is talking about a macro...

John

I think Sean is talking about a macro that he wrote. Not the one I put up a couple of years ago.

http://www.mechmate.com/forums/showthread.php?p=33090&postcount=69

Greg
Forum: 70. Control Systems Mon 28 June 2010, 23:16
Replies: 41
Views: 10,955
Posted By Greolt
Peter I have some interest in your question,...

Peter

I have some interest in your question,

However this being a site for Mechmate builders I think it would be more appropriate to ask over at the Mach3 site,
...
Forum: CNC motion control software Mon 07 June 2010, 14:49
Replies: 4
Views: 2,488
Posted By Greolt
Andrey For some technical type questions it...

Andrey

For some technical type questions it may be better to try the Yahoo group.

http://groups.yahoo.com/group/mach1mach2cnc/

Greg
Forum: 70. Control Systems Tue 02 March 2010, 17:14
Replies: 76
Views: 23,662
Posted By Greolt
If using Mach3 there is no need to add a "G4 P#"...

If using Mach3 there is no need to add a "G4 P#" to code for a spindle run up delay.

This delay can be set in Config / Ports and Pins / Spindle Setup.

Greg
Forum: MechMates already cutting Tue 09 February 2010, 12:30
Replies: 1,078
Views: 161,728
Posted By Greolt
Ross I can tell you that the Atom 330...

Ross

I can tell you that the Atom 330 settles at 35005 when on 35khz kernel speed.

However this tells me nothing much at all, and will vary according to what driver is being used. That is with...
Forum: MechMates already cutting Tue 09 February 2010, 04:30
Replies: 1,078
Views: 161,728
Posted By Greolt
Ross Pulse speed that the driver settles on...

Ross

Pulse speed that the driver settles on will vary with which driver version you are using. Art has been playing around with the driver and it's ability to settle at close to the called for...
Forum: MechMates already cutting Tue 09 February 2010, 03:33
Replies: 1,078
Views: 161,728
Posted By Greolt
For what it is worth, I have been running my 4...

For what it is worth, I have been running my 4 axis router from a Foxconn 45CSX MoBo with on board 330 Atom CPU, 2gigs ram at 35khz via LPT, for some time now, with no problems.

Greg
Forum: MechMates already cutting Wed 20 January 2010, 14:51
Replies: 1,580
Views: 234,726
Posted By Greolt
Not really an offset in the Mach sense. Just a...

Not really an offset in the Mach sense. Just a way to set Z zero. And not complicated.

You need a point on your rotary axis that never changes and is always accessible. I usually suggest some...
Forum: MechMates already cutting Wed 20 January 2010, 03:34
Replies: 1,580
Views: 234,726
Posted By Greolt
No hard and fast rules about this but there are...

No hard and fast rules about this but there are distinct advantages to setting your Z zero at the centre of the rotary axis rotation.

First and foremost it remains constant and never changes. No...
Forum: 70. Control Systems Fri 15 January 2010, 13:33
Replies: 64
Views: 15,107
Posted By Greolt
I don't know that it has a name. Access it...

I don't know that it has a name.

Access it by going to menu/operator/edit button script, then the refall button will start to wink.

Click on it and the homing macro will open in the VB...
Forum: 70. Control Systems Fri 15 January 2010, 02:16
Replies: 64
Views: 15,107
Posted By Greolt
G'day Belli I will use our user names to...

G'day Belli

I will use our user names to avoid confusion. Our Mothers are both clever people to give us both such a fine name. :D

"How do we use home switches to square the gantry without...
Forum: CAM Thu 14 January 2010, 19:37
Replies: 19
Views: 7,227
Posted By Greolt
The Vectric software is popular and I would...

The Vectric software is popular and I would imagine many MM users would use one of their products.

A good place to start as a reference would be this comparison chart.
...
Forum: 70. Control Systems Mon 11 January 2010, 22:50
Replies: 64
Views: 15,107
Posted By Greolt
Already done those tests Gerald. See post #40. ...

Already done those tests Gerald. See post #40.

Here is a section of the Mach3 change log,

May 14 2007 Version 2.00.073

New selection in Config/general for "Home slave with Master. " ,...
Forum: 70. Control Systems Mon 11 January 2010, 17:43
Replies: 64
Views: 15,107
Posted By Greolt
I re-read my post and can see that it may be...

I re-read my post and can see that it may be taken as rude or arrogant.

Please believe that is not my intention. In light of some recent experience, I am just feeling a bit jaded with debates...
Forum: 70. Control Systems Mon 11 January 2010, 16:19
Replies: 64
Views: 15,107
Posted By Greolt
I'm sorry Greg but this assumption is wrong. ...

I'm sorry Greg but this assumption is wrong.

I have only responded to this post because new readers looking for info on Mach's "Auto Gantry Squaring" may be misled.

Personally I don't care,...
Forum: CNC motion control software Mon 11 January 2010, 15:33
Replies: 18
Views: 8,690
Posted By Greolt
M5 Stops spindle rotation M9 stops coolant ...

M5 Stops spindle rotation

M9 stops coolant

M30 Signals program end and rewind

Greg
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Sat 09 January 2010, 16:31
Replies: 43
Views: 11,169
Posted By Greolt
Unless you lose steps there is nothing to...

Unless you lose steps there is nothing to accumulate. (besides some mechanical slippage)

However those steps got lost can be argued to the end of days.

Backlash in a round about way may cause...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Sat 09 January 2010, 05:59
Replies: 43
Views: 11,169
Posted By Greolt
Backlash itself will not accumulate. It is...

Backlash itself will not accumulate. It is simple physics.

However if using Mach3's backlash compensation there is another factor that MAY come into play.

Backlash compensation does not honour...
Showing results 1 to 25 of 108

 
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