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Does anyone have a macro for probing along a axis for a angle error and then writing the g68.g69 commands to a gcode file ? they are willing to share or is this already built into the software ?

Would it be possible for a gcode program to call a macro asking for a input of degrees that could then we written to a line in the gcode such as g68 x0y0 r(inputvalue) ? ideally I would like to get the fusion 360 probing routines to work with uccnc but that looks like a huge effort.

My workflow would be to do a probe to find the angle error and then once the gcode is started to input that error in each time.

With g68 the gcode is not changed

G68 rotates the work coordinates on the machine.

I may be wrong but I don't think you understand how g68 works. It has nothing to do with fusion and the gcode output by fusion. It just corrects / alters the work coordinates on the machine and rotates the coordinates about an axis point you choose on the machine

If you write your own gcode and have a pattern you wish to repeat you can use g68 to rotate and repeat this gcode but this is not something fusion would do in my little experience

Robert I understand how the g68 gcode works , it rotates the xy co ordinates by a angle , and is set by a g68 command with centre of rotation xy point and rotation amount value r.
To gain that rotation value R we either need to be able to use the fusion 360 probe angle along axis or do a angle probe within uccnc and then insert that R value into the Gcode.

I just dont know how to achieve it other than to manually edit the gcode everytime and then reload it .

one thing I havent tried is to issue the g68 x0y0 r? via the mdi - am worried that inital setup commands will wipe it.

Using fusion360 probing to set g68


https://youtu.be/Hxmh76dDgEs

And how to do it using f360
https://youtu.be/XgZY4-oUXGo

I just dont know how we can get it to work in uccnc

He made a special F360 postprocessor for PathPilot probing. I downloaded the post and it's very interesting. It needs much time to completely understand how it works, but it would be a good idea to apply it to the UCCNC post.

Hopefully I'll have time tomorrow to write you a macro to measure the angle and rotate the workpiece.

dezsoe wrote:He made a special F360 postprocessor for PathPilot probing. I downloaded the post and it's very interesting. It needs much time to completely understand how it works, but it would be a good idea to apply it to the UCCNC post.

Hopefully I'll have time tomorrow to write you a macro to measure the angle and rotate the workpiece.

Thank you , happy to test anything you come up with . the probing routines for angle work really well in the current screenset , just need a way to insert the g68 and g69 commands



would be a great idea if there was a repository of current uccnc post processors that work here on the forum.

OK, sorry, I couldn't make it yesterday, but I'll try to do my best.

UCCNC can already calculate the angle . It just needs to push that value to a # var say #4000. Then from either MDI call M68 Xxx Yyy R#4000 OR apply teh Gcode call directly into your Gcode file.


(New Gcode File)
G50 G90 G80 G94
G68 Xxx Yyy R#4000 (Rotate Coord base)
etc
etc

Just a thought , (;-) TP