Weird Arc behaviour

If you think you've found a bug post it here.

Weird Arc behaviour

Postby marben » Thu May 23, 2019 2:49 pm

Anyone have any idea why this happens?
The outer cut consists of 7 stepdowns, the 6 first are weird like in the picture, but the last one is a perfect arc.
[img]
IMG_3364.jpg
[/img]

I have tried using uccnc post prossessor and also mach3 with same result, And I cannot see anything wrong in the code.

This is the code for the outer cut in question:

N3620G00Z60.000
N3630G00Y14.000
N3640G1Z46.429F1200.0
N3650G1X176.500F3600.0
N3660G3X237.500Y75.000I0.000J61.000
N3670G3X176.500Y136.000I-61.000J0.000
N3680G1X73.500
N3690G3X12.500Y75.000I0.000J-61.000
N3700G3X73.500Y14.000I61.000J0.000
N3710G1Z42.857F1200.0
N3720G1X176.500F3600.0
N3730G3X237.500Y75.000I0.000J61.000
N3740G3X176.500Y136.000I-61.000J0.000
N3750G1X73.500
N3760G3X12.500Y75.000I0.000J-61.000
N3770G3X73.500Y14.000I61.000J0.000
N3780G1Z39.286F1200.0
N3790G1X176.500F3600.0
N3800G3X237.500Y75.000I0.000J61.000
N3810G3X176.500Y136.000I-61.000J0.000
N3820G1X73.500
N3830G3X12.500Y75.000I0.000J-61.000
N3840G3X73.500Y14.000I61.000J0.000
N3850G1Z35.714F1200.0
N3860G1X176.500F3600.0
N3870G3X237.500Y75.000I0.000J61.000
N3880G3X176.500Y136.000I-61.000J0.000
N3890G1X73.500
N3900G3X12.500Y75.000I0.000J-61.000
N3910G3X73.500Y14.000I61.000J0.000
N3920G1Z32.143F1200.0
N3930G1X176.500F3600.0
N3940G3X237.500Y75.000I0.000J61.000
N3950G3X176.500Y136.000I-61.000J0.000
N3960G1X73.500
N3970G3X12.500Y75.000I0.000J-61.000
N3980G3X73.500Y14.000I61.000J0.000
N3990G1Z28.571F1200.0
N4000G1X176.500F3600.0
N4010G3X237.500Y75.000I0.000J61.000
N4020G3X176.500Y136.000I-61.000J0.000
N4030G1X73.500
N4040G3X12.500Y75.000I0.000J-61.000
N4050G3X73.500Y14.000I61.000J0.000
N4060G1Z25.000F1200.0
N4070G1X176.500F3600.0
N4080G3X237.500Y75.000I0.000J61.000
N4090G3X176.500Y136.000I-61.000J0.000
N4100G1X73.500
N4110G3X12.500Y75.000I0.000J-61.000
N4120G3X73.500Y14.000I61.000J0.000
N4130G00Z60.000
N4140G00Z70.000
N4150G00X0.000Y0.000
N4160M09
N4170M30
%
Attachments
IMG_3364.jpg
marben
 
Posts: 3
Joined: Sun Sep 23, 2018 9:20 am

Re: Weird Arc behaviour

Postby Battwell » Sun May 26, 2019 12:50 pm

it displays and runs fine here.
if its displaying correctly on screen in uccnc toolpath but not cutting correctly it must be your cv settings are way off ?
Uc300eth on router and mill
If they say it can't be done- I find a way!
Battwell
 
Posts: 459
Joined: Sun Sep 25, 2016 7:39 pm
Location: South Wales. Uk

Re: Weird Arc behaviour

Postby marben » Sun May 26, 2019 5:03 pm

It looks good on the screen and in simulation.
I use the default cv settings that came with uccnc. What would be "normal" cv settings and what needs to be considered when setting them?
marben
 
Posts: 3
Joined: Sun Sep 23, 2018 9:20 am

Re: Weird Arc behaviour

Postby Dan911 » Sun May 26, 2019 11:51 pm

Battwell wrote:it displays and runs fine here.
if its displaying correctly on screen in uccnc toolpath but not cutting correctly it must be your cv settings are way off ?


It is odd though that the other 3 arc's cut ok with these same settings.

Dan
Dan911
 
Posts: 599
Joined: Mon Oct 31, 2016 1:22 am
Location: USA

Re: Weird Arc behaviour

Postby Vmax549 » Mon May 27, 2019 2:06 am

Try turning teh CV OFF then rerun teh code to see IF it is CV related.

(;-) TP
Vmax549
 
Posts: 133
Joined: Sun Nov 22, 2015 3:25 am
Location: USA

Re: Weird Arc behaviour

Postby marben » Mon May 27, 2019 6:03 am

Vmax549 wrote:Try turning teh CV OFF then rerun teh code to see IF it is CV related.

(;-) TP


I've tried that with same result only more jerky.

Dan911 wrote:
Battwell wrote:it displays and runs fine here.
if its displaying correctly on screen in uccnc toolpath but not cutting correctly it must be your cv settings are way off ?


It is odd though that the other 3 arc's cut ok with these same settings.

Dan


What's even more odd is that on the final depth cut it cuts a perfect arc.
marben
 
Posts: 3
Joined: Sun Sep 23, 2018 9:20 am


Return to Report a bug

Who is online

Users browsing this forum: No registered users and 4 guests