topic Re: Post processor help in Fusion API and Scripts Forum

Post processor help

kratzkemachining — Sat, 11 Feb 2023 02:39:22 GMT

I was wondering if anyone would be able to help me make some small changes to my post processor, which only needs 3 things to get us going in the shop. A custom post would be upwards of $2500 and I had a professional inspect my code from Fusion and it only needs these three things. I am not new to coding but am unsure of what to actually insert to get the results I want.

1. G61.1 after the very first tool change line, with G64 at the end statement of the code to cancel it.

2. G05 P2 right after G43.4 (when using 4 or more axis) and before G01 (any movement), with G05 P0 at the end of the unit to cancel G5 P2.

3. G49 at the end of the last movement in the unit to cancel G43.4 before moving on the the next unit.

I am using the term UNIT as a way of saying (parallel, scallop, adaptive, contour, e t c)

Any help is appreciated!

Re: Post processor help

ltomuta — Tue, 14 Feb 2023 05:38:07 GMT

These sound like trivial changes if you provide: a) the post file and b) a sample project to use as baseline for comparing the before and after output.

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 13:07:51 GMT

Thank you for the reply, Here is the post I am using and the project file in a .txt files as I cannot send .eia files. If you need anything else just ask.

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 13:14:39 GMT

Here is actually a file that was hand corrected if you would like a reference on exactly what it looks like. The changes he made are also in ( ) next to the G codes I listed in the initial post. Thanks!

Re: Post processor help

kandennti — Tue, 14 Feb 2023 13:46:29 GMT

Hi @kratzkemachining .

Can you provide the f3d file?
I believe you have all the data you need, but others don't have it all and can't even consider it.

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 14:22:44 GMT

Yes I can, but it seems to me that it is a f3z file? Is that the same thing or do I need to do something else?

Re: Post processor help

ltomuta — Tue, 14 Feb 2023 16:05:43 GMT

By project I mean the Fusion design (.f3d or .f3z) from which I can
generate the intermediary file needed for post processor debugging

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 17:27:34 GMT

Yes okay, here is the f3z file attached

Re: Post processor help

ltomuta — Tue, 14 Feb 2023 18:35:40 GMT

Should G5 P2 be generated only after G43.4 or also for G43.5 ?

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 18:46:25 GMT

Only after G43.4 is what I am being told

Re: Post processor help

ltomuta — Tue, 14 Feb 2023 18:54:04 GMT

Actually, there is already a smoothing implementation in your post. To enable it set the useSmoothing property on. Did you try in and want it modified or is not good for you at all as is?

It comes with matching G49s

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 19:02:22 GMT

I see I have overlooked that G5 because it was posted as G5 P2 not G05 P2, which is what I was searching for. I will start enabling smoothing to fix that problem. Also the G49 needs to be in the end of each unit rather than the beginning of the next unit. ( I am unsure why but that's what worked ) Thanks!

Re: Post processor help

ltomuta — Tue, 14 Feb 2023 19:29:40 GMT

Try this one. The changes are between comments like this

// Lucian start var highAccuracy = false; // Lucian end

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 19:36:53 GMT

I will try this right now and let you know!

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 19:47:11 GMT

I just ran it and right away it gave me an "Illegal format" error, I think the control is very picky and needs the G05 P2 right after the G43.4 and not before it. Other than that everything looks correct! Does this mean I should not use the internal smoothing option?

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 19:57:25 GMT

I asked about G05 P2 and he said it should only be in there when using 4 or more axis, which is why it is erroring us out on adaptive 3 axis milling

Re: Post processor help

kratzkemachining — Tue, 14 Feb 2023 20:53:57 GMT

I accidentally replied to my own comment and am unsure if you can see those, so I will type it here as well.

"I asked about G05 P2 and he said it should only be in there when using 4 or more axis, which is why it is erroring us out on adaptive 3 axis milling"

Re: Post processor help

ltomuta — Wed, 15 Feb 2023 20:28:32 GMT

Sounds like the built-in smoothing option needs a bit of tweaking to move it after and only after G43.4 in 5 or more axis operations. I will have a new look see at it tomorrow.

Re: Post processor help

kratzkemachining — Wed, 15 Feb 2023 21:37:09 GMT

Yes that would be great, here is the code that worked flawlessly on our machine if you would like a reference to see where G5 P2, G5 P0, G61.1, G64, and G49 are in the program. Thanks again for the help! ( I sent it in a .txt file because I cannot send .EIA )

Re: Post processor help

ltomuta — Fri, 17 Feb 2023 03:59:00 GMT

Ok, I've got it now to the point where it outputs this sequence:

Meaning G5 P2 right after and only after G43.4.
But if you really need it moved right before the G1 line then that would be a bit tricky as I would have to bypass an existing validation point and move the activation of the tool length compensation past a point where the Fusion post guys think it should have happened already.