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Author Topic: Mach3 R3.042.033 overfeed bug  (Read 10268 times)

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Offline Greolt

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Re: Mach3 R3.042.033 overfeed bug
« Reply #20 on: January 06, 2010, 04:34:39 AM »
There is a new revision just posted (034)  try that and see if it helps.
Hood

G'day Hood

Yeah I just tried 034, and it is all screwed up for me.

Feedrates are oscillating up and down.

Don't know yet if it is just me or a problem with the new driver update.

Reverted to 033 and all is good again.  Or at least like it was before.  :)

Greg

Offline Hood

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Re: Mach3 R3.042.033 overfeed bug
« Reply #21 on: January 06, 2010, 04:36:41 AM »
Oh well hopefully things will be fine in Rev4.
Hood

Offline Greolt

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Re: Mach3 R3.042.033 overfeed bug
« Reply #22 on: January 06, 2010, 05:51:56 AM »
There is a new revision just posted (034)  try that and see if it helps.
Hood

Actually I am very happy with 033.

The long standing rotary axis feedrate bug, that I have been complaining about for over a year, has been 90% fixed.

Happy as pig in mud.  ;D

Greg

Offline Hood

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Re: Mach3 R3.042.033 overfeed bug
« Reply #23 on: January 06, 2010, 05:58:29 AM »
Lucky you are not in Scotland at the moment then as the pig would be frozen into the mud and not too happy ;D

Hood
Re: Mach3 R3.042.033 overfeed bug
« Reply #24 on: January 06, 2010, 12:13:39 PM »
version 034 has corrected the feed issue. Thank you very much.
My motor max velocity is 850.2mm/min (for some reason the 0.2 gets added when i enter 850.
The machine now jogs and accelerates properly at 849.9mm/min.
Close enough for me. Thanks.
« Last Edit: January 06, 2010, 12:15:48 PM by swarfboy »

Offline Hood

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Re: Mach3 R3.042.033 overfeed bug
« Reply #25 on: January 06, 2010, 01:59:03 PM »
:) glad to hear that, hopefully this kind of thing will not happen with Rev4.

Hood
Re: Mach3 R3.042.033 overfeed bug
« Reply #26 on: February 23, 2010, 09:16:54 AM »
Hello
Excuse me, I have a problem, may be like this (I don`t know).

For example:

Position "0" (to look black labels)



%
G90 G21
F 5000
M98 P1234 L30
M30
O1234
G1 A5
G1 A0
M99
%



%
G90 G21
F 5000
M98 P1234 L60
M30
O1234
G1 A5
G1 A0
M99
%



Is it bug of Mach?

Help me please
Re: Mach3 R3.042.033 overfeed bug
« Reply #27 on: February 23, 2010, 11:45:23 AM »
Has forgotten to tell - Steps for A-axis 8.8888 (200*16/360)
And not understand:
type G01 A10, but in window: "+10.0126"
G01 A360 - "+360.0036"
G01 A720 - "+720.0072"...Etc.

Offline RICH

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Re: Mach3 R3.042.033 overfeed bug
« Reply #28 on: February 23, 2010, 02:26:08 PM »
Pavlll,
I think what you are seeing is because of your steps per degree.
If you move 10 degrees than the number of steps would be rounded to the lower or higher
of the whole step. Thus you get some parts of a degree like .0126 deg in this case, but at certain angles it will be
a displayed even degree in the dro.
"I think " you would need a number divisible by 360 and 10.8 reduction to get rid of that.
AT 10 degrees you have  .0126 degrees = .756 min = 45 seconds which would be about 0.0025" in a foot.
You can ignore it or accept it for what it is.

So it's a resolution thing and good resolution will come from mechanical for a rotary.

I don't have any dro numbers like that for any angle,but , my steps per degree are 750.

Hope this makes sense,
RICH




 
Re: Mach3 R3.042.033 overfeed bug
« Reply #29 on: February 24, 2010, 07:51:08 AM »
Thank you RICH
I enter 10 (in steps) today... nothing  :(
Result like yesterday.