topic Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work in Fusion Manufacture Forum

Simulating a Multi-Axis Contour - Axial Offset does not seem to work

Anonymous — Wed, 28 Jul 2021 21:13:37 GMT

Hello.

May apologies for this newbie question, but I've searched high and low and have not found a solution to my dillema.

I am simulating a Multi-Axis Contour in an attempt to “engrave” a pattern on a sphere.

The tool follows the path perfectly, but when I set an Axial offset to get an engraving,

nothing happens. The tool remains tangential to the surface no matter what number I enter.

Help, please!!!

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

DarthBane55 — Fri, 30 Jul 2021 15:35:23 GMT

Assuming that you went negative with the axial offset, it seems strange, I've used it successfully before. Any way you can share the file here?

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

Anonymous — Fri, 30 Jul 2021 18:07:43 GMT

Hi. Thanks for the reply. I DID go negative and also tried positive values. Nothing.

I am attaching the file that I have been using. It is a very simplistic proof of concept set up - simple shapes on a sphere. One other catch that I found, besides the inability to offset the axis, was the limitation of tools available for this process. I was only able to successfully use a ball end mill - no other. Any other choice led to major error warnings for improper tool.

This is the info on the version of Fusion 360 that I have been running:

2.0.10564
Active Plan: Fusion 360, Subscription
macOS 10.15.7

Thanks.

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

DarthBane55 — Fri, 30 Jul 2021 18:29:25 GMT

Yeah, it only works with ballmills as far as I know. In your case, you could put a different tool in your machine if you want a different shape, it's not doing anything funky sideways that it would cause an issue (in this particular case).

I don't know why the axial offset is not working, could be a new bug... however you can just put a negative axial offset in the stock to leave, I did that with your file and that worked fine.

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

Anonymous — Fri, 30 Jul 2021 18:44:06 GMT

Thanks for the tip.

I'm in the midst of trying it, but the software went goofy (the tool UI gets messed up every so often).

I will try the Stock to Leave, but the axial offset should work, right?

It works for you?

Not cool.

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

DarthBane55 — Fri, 30 Jul 2021 18:48:34 GMT

It worked in the past, but not today... axial stock to leave does the same thing tho.

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

engineguy — Fri, 30 Jul 2021 19:47:56 GMT

@Anonymous

Looking for something like this ??

File attached, one thing needed is a "Taper Mill" with as close to a point as can be achieved for the tool, that will be accepted 🙂

Also use the "Stock to leave" with a Minus Axial value (0.02 used in example) and as small a Radial plus value that you can get away with, it doesn`t work with 0 😞 😞 😞

The whole thing seems to be sort of upside down, one thing I had to do to make it work was to reset your Setup and the Tool Orientation in the Operation as well, usually best if you are running the job on a Z axis up CNC machine to also do your models in the "Z Axis Up" mode, nothing wrong with it, just means less work in the Manufacture environment 🙂 🙂

Yes, agreed, I think the Multiaxis Contour toolpath needs a fair amount of work, not "bugs" as such, just needs work !!

Re: Simulating a Multi-Axis Contour - Axial Offset does not seem to work

engineguy — Fri, 30 Jul 2021 21:28:07 GMT

@Anonymous

@DarthBane55

Forgot to mention, the Axial Offset does seem to work in the Positive direction, Weird !!