Author Topic: CV bad behaviour need improvement  (Read 14951 times)

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Offline nik

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Re: CV bad behaviour need improvement
« Reply #10 on: March 15, 2012, 08:19:54 AM »
I agree that if you edit the G code manually after hundreds of tests you may avoid some bugs in the software, as I did once, but It is a waste of time to do it every time, I think the proper way is to fix the bugs, instead of trying to guess how to avoid them

considering that most of the G code is generated with software, and almost nobody write it manually anymore, CV is essential, and should be improved, specially when the G code is generated properly, and it IS possible to generate PROPER pulsing without SUDDEN STOPS
« Last Edit: March 15, 2012, 08:31:47 AM by nik »

Offline nik

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Re: CV bad behaviour need improvement
« Reply #11 on: March 23, 2012, 07:04:07 AM »
still nobody replied from technical support, what a shame
obviously I have to look for another solution
does anyone tried EMC2 for high speed milling? I just downloaded it and when Im free I will try it, but other experience will be useful, specially for higher feed, how is executing Gcode on corners and curves, I want to improve the quality and productivity, because the machine is capable to do much better, just need proper pulsing
thanks
« Last Edit: March 23, 2012, 07:07:04 AM by nik »

Online ger21

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Re: CV bad behaviour need improvement
« Reply #12 on: March 23, 2012, 04:19:07 PM »
The CV is not going to be fixed in the current version of Mach3.
The developers are currently working on Mach4, which should have much better CV.
Gerry

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Offline nik

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Re: CV bad behaviour need improvement
« Reply #13 on: March 23, 2012, 04:48:22 PM »
that sounds as a little hope.... if this is going to be fixed it doesn't matter which version number is, thanks for the info
I asked early but let me ask again
I have a little programming skills
is there any chance I can modify or write my own CV algorithm, may be VB script?
I wasnt able to find all details needed in documentations
is it possible at all?
thanks

Online ger21

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Re: CV bad behaviour need improvement
« Reply #14 on: March 23, 2012, 05:28:34 PM »
No, it's not possible.

One other thing you might want to try is to use the Tempest trajectory planner. It's experimental, and some things don't work when using it, but it can give much smoother motion.
There's a separate section of the forum for it here.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline nik

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Re: CV bad behaviour need improvement
« Reply #15 on: March 23, 2012, 07:10:37 PM »
Yes I tried it but I keep receiving error message "An invalid argument was encountered"
I wasnt able to test it at all
and when I read the last post in the thread I just give up
also I noticed that all posts are very old therefore I posted here, if any new and working solution is available

Online ger21

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Re: CV bad behaviour need improvement
« Reply #16 on: March 23, 2012, 07:40:15 PM »
Try running it with an older version of Mach3, like 3.42.020 or 3.42.040
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline nik

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Re: CV bad behaviour need improvement
« Reply #17 on: March 23, 2012, 07:47:34 PM »
I tried with 3.042.028
do you think that other may work?

Online ger21

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Re: CV bad behaviour need improvement
« Reply #18 on: March 23, 2012, 08:43:35 PM »
I use it with 3.42.020.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
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Offline nik

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Re: CV bad behaviour need improvement
« Reply #19 on: March 24, 2012, 06:55:28 PM »
same error message with 3.42.020
the last version of tempest I found is sept29, on page 6, I tried also to replace the parallel driver provided in same thread, still same problem

also I read a lots of posts here that mach4 is expected, some posts 2-3 years old, and I still cant find even alpha release for download
then I tried emc2 - extremely smooth movements even on highest feed rate, no matter of corners or arcs or number of points
no jitter, no shaking, no sudden stops while running G code or manual movement
mach3 do sudden stops while running G code and also on manual movement near to soft limits
anyway
thanks for your help