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Mazatrol face contour programming

M3cnc

Plastic
Joined
Jan 25, 2021
Hello everyone,
I am having some trouble finishing some programming on a small knob. I have a Mazak qt15n with the T-plus controller. I am able to get the initial 1.5” convex radius feature on the face but it goes into what seems to be a 1/32 concave to 1/32 convex into .125 concave back to a couple 1/32 concave and convex radius. I was hoping for some guidance with the face features. Don’t know if I should program the small radius as a face grove? Or continue with the bar out process. Thank you ahead of time.
Mark
 

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M3cnc

Plastic
Joined
Jan 25, 2021
Well after spending most of the afternoon, I am able to process the shape but when I try to run it, the reverse shape contour error pops up. Shows line 3 but I am not exactly where to go or change with it. Thank you
-mark
 

Attachments

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Philabuster

Diamond
Joined
Jul 12, 2006
Location
Tempe, AZ
Try changing line 3 finish Z point to .154. The printout you have is in 3 decimals. If the shape is actually .1534", then the printout will round the number down to .153, but the machine knows the shape is trying to reverse itself.
 

M3cnc

Plastic
Joined
Jan 25, 2021
So the overall length is .068 too long compared to the original. The large radius in pno 2 is obviously longer then the original. Any suggestions on the most current program?
 

Attachments

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M3cnc

Plastic
Joined
Jan 25, 2021
I’ve tried that, all the features and measurements after the large radius are spot on. For whatever reason it seems that the large radius is the only feature off.
 

M3cnc

Plastic
Joined
Jan 25, 2021
I’ve tried adjusting the start z back the .068 and it doesn’t change the issues. Has me stumped.
 








 
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