Messages

2011

General Mach Discussion / Re: Constant velocity

« on: September 27, 2007, 05:44:20 AM »

I upgraded R2.45 post sep 5th but have not had chance to really try it out until today and I'm sorry guys but I still can't make any sense of the CV tuning settings. If anything they just seem to have gotten worse and more confusing.

This setting will tell Mach3 to come to a full stop if the angle from one intersection to the other is less then X amount.

The only settings now appear to be CVDistance and CVFeedrate - I can find no setting relating to any angle.

What is the CV feedrate setting for?

This will make the Blending of the moves happen at Blend feedrate...

This doesn't seem to be the case (on my system at least)

I've tried to figure out the logic of CVDistance and CVFeedrate for myself but thus far I can't make any sense of either of them.

CVDistance seems to tighten the blend arc the smaller you set it but it doesn't appear to have any correlation to any real distance. This is on every intersection regardless of angle.

CVFeedrate seems to be a + or - to the current feedrate but the only effect it seems to have is either no effect or it effectively turns CV off completely. Again I can't see any correlation between different values and any effect. Certainly whatever it's set to the actual feedrate doesn't seem to change.

Has anyone - particularly those who've contributed to this thread had any better success? or is it just me?

2012

General Mach Discussion / Re: zero doesnt equal zero?

« on: September 26, 2007, 03:46:58 AM »

the first thing that the z does is to drill a hole that is .2 deep

Hi Ken - Are you sure that your Z is not working backwards somehow - according to the gcode, the first thing it should do is RAISE the Z axis to 0.2 (for clearance) i.e. there is no hole 0.2 deep at the beginning of the gcode.

2013

General Mach Discussion / Re: Macros, Visual Basic and all that

« on: September 24, 2007, 08:23:46 AM »

pleased you got it all sorted Jim. Yes VB/VB script - what can I say... it turned cat skinning into an art form

2014

General Mach Discussion / Re: Macros, Visual Basic and all that

« on: September 23, 2007, 06:30:35 AM »

also just noticed your presradius decrement is = instead of -
and
StartRadius never used and PresRadius never initialized

2015

General Mach Discussion / Re: Macros, Visual Basic and all that

« on: September 23, 2007, 06:16:43 AM »

Hi Jim

do while condition
  statements
loop

missing an "end if"

last "End" keyword if used at all should come after the main code and before the subs. i.e.

main code  statements
End

Subs

Me thinks maybe you're more used to C than this VB abomination :-)

2016

General Mach Discussion / Re: Macros, Visual Basic and all that

« on: September 23, 2007, 04:37:54 AM »

the CALL statement isn't needed.

foo "hello"
bar
MsgBox mySquare(3)

Sub foo (s As String)
  MsgBox s
End Sub

Sub bar()
  MsgBox "in bar"
End Sub

Function mySquare(i As Integer) As Integer
  mySquare=i*i
End Function

2017

General Mach Discussion / Re: Macros, Visual Basic and all that

« on: September 22, 2007, 05:00:24 AM »

Hi Jim - been a looooooooong time but - use Print instead of Write.
(to anyone - what - no FSO?)

2018

General Mach Discussion / Re: Constant Velocity Changed Recently

« on: September 22, 2007, 04:22:13 AM »

Hi - R2.48 had CV modified on the 5th Sep. I suspect you'll need to re-tweak your CV tolerances as it sounds like your angles that were being blended are now being "exact stopped" - see http://www.artsoftcontrols.com/forum/index.php?topic=4113.0
Hope this helps until Brian can give you a fuller answer.

2019

Third party software and hardware support forums. / Re: parallel port problem

« on: September 18, 2007, 07:35:42 AM »

have a look under system tools/system information/hardware resources/I/O

2020

General Mach Discussion / Re: simultaneous homing?

« on: September 13, 2007, 10:09:16 AM »

OK I've upgraded to R2.45 and all seems well. This time it didn't trash all the settings apart from G28 in home/limits. Strange I did a diff on the original and new xml and they were identical - G28 must be stored somewhere else I guess. Limits work and I've got the homing set to Z then XY simultaneously. code is: rem out all but DoButton(24) followed by RefCombination(3). Just need to have a look at the CV improvements.

Many thanks to B and H (sounds like a cigarette  )