Fusion 360 Milling post with G64 Pn

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24 Mar 2019 11:46 #129467 by spangledboy
Thanks for pointing that out Marty. I actually somehow hadn't noticed that neither G61 nor G64 appear to be implemented in the default post - unless your machine has a default G61 in the ini file, then you end up with G64 with no applied tolerance, which is pretty much the worst case scenario.

My take away from this is to firstly update my ini file so there's a G61 in there and then to look at a good way to implement G61 & G64 switching along with tolerance changes on an operation by operation basis.

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24 Mar 2019 12:24 #129468 by MartyJ
Yes, the g64 with no P value makes some pretty wonky parts on my machine, since most of my operations are 250-450 ipm.

BTW I really like your tool change comment implementation. I have HSMworks comments stating the diameter, type, and intended feed rate in the tool library, so on tool change during a long production run I don't forget where I was in the process. It's saved me several wrecked parts already. Thanks.

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24 Mar 2019 12:58 #129469 by spangledboy
I've submitted a request on the Autodesk HSM/Fusion360 Idea board for G61 & G64 to be properly implemented in the post processor. Please vote for it/add comments there as you see fit.

forums.autodesk.com/t5/hsm-post-processo...g-with/idi-p/8679566

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24 Mar 2019 13:03 #129470 by spangledboy
Glad to hear I've been of some use! Getting a notification of what to put in next is always helpful for those of us without automatic tool changers....

Somehow I've got away without being badly affected by the sloppy G64 in my machine - I guess it's down to my low speed moves as I mostly work in steel and aluminium. The realisation dawned when I noticed some inside corners being less sharp than they should be in my latest job.

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24 Mar 2019 16:27 #129487 by pl7i92
there are now so many linuxcnc posts around and in this forum
that people are strugeling to get the right one

so many people turning from "mach" here are with G53 and linuxcnc dont like this files

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26 Mar 2019 14:50 #129693 by andypugh
Fusion360 puts in a G53 G0 Z0 before each tool change.
This is OK, and LinuxCNC compatible, but ony if 0 is the top of Z travel.
(But that would be just as much of a problem with any other controller)

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