topic Re: 3d Toolpath for internal fillet in Fusion Manufacture Forum

3d Toolpath for internal fillet

infoLS2MF — Fri, 13 Dec 2024 04:12:26 GMT

I suppose the root of my issue is that I cannot get the fillet to go any bigger than 5.2mm without error and am wanting to use a 12mm Ball.

Is there any way to get a toolpath to generate on the fillet inside the part?

Letting the scallop get close causes chatter and I cannot get the feed optimization to slow the corners reliably plus the scallop does not like the port in the middle and wants to gouge the material. I've tried conventional vs climb and it wasn't much better.

I've tried:

Contour

Pencil

Morph (almost works if I lied about the tool size but wouldn't offset right)

Scallop

Trace

Blend

Flow

I'd like to upload the project archive but the site says the file extension is wrong...How can I upload the archive?

In the meantime:

https://drive.google.com/file/d/1tGdkIAUYxTKxKJfF3Y2qRo_Nqy4gi5lx/view?usp=sharing

Cheers,

Patrick

Re: 3d Toolpath for internal fillet

seth.madore — Fri, 13 Dec 2024 09:38:58 GMT

That link you shared does the trick, thanks!
Which Setup, toolpath and area are you struggling with?

Re: 3d Toolpath for internal fillet

programming2C78B — Fri, 13 Dec 2024 12:59:58 GMT

throw the fusion file inside of a ZIP and the forum will allow you to upload that.

Re: 3d Toolpath for internal fillet

kieran.gill — Fri, 13 Dec 2024 13:02:17 GMT

I've managed to create two solutions for you :

Solution 1: See image 1 which shows Geodesic (Scallop toolpath type) in 3-axis which is similar to your scallop but supersedes your Scallop because it has a spiralled toolpath and cusp removal at junctions. The toolpath supercedes the scallop in that it also machines the fillets as well. This is a direct replacement for your Scallop toolpath. You will likely want to remachine the fillets with a smaller tool later on in the project to remove further rest material.

Solution 2: See Image 2 which shows Geodesic (Blend toolpath type) in 3-axis which aims to complement your existing Scallop strategy in that it will machine the fillets with a smaller tool resulting in less rest material, however it is with a smaller tool which is very long already and may still result in some chatter.

I will DM you the file privately if you prefer that ?

Re: 3d Toolpath for internal fillet

infoLS2MF — Mon, 16 Dec 2024 02:48:18 GMT

That would be great!

I've given the Geodesic a go but an getting these loops that makes the finish inconsistent. Setup 1 Geodesic 1

As an alternative I was trying to fix the model by increasing the vertical radius of the corner. I was able to change all but two. Being 5.4mm with a 12mm tool isn't going to "cut it"....sorry. Ha

Please take a look at the updated model.

Cheers,

Patrick

Re: 3d Toolpath for internal fillet

infoLS2MF — Sun, 15 Dec 2024 22:17:19 GMT

Setup 1 Path T13 Scallop 1. Keiran seems to have a couple good ideas though. Cheers.

Re: 3d Toolpath for internal fillet

kieran.gill — Mon, 16 Dec 2024 21:54:53 GMT

I have fixed your Geodesic by forcing Blend to be very particular about which two curves are being used as drive curves. See image. Send you the file via PM now...

Re: 3d Toolpath for internal fillet

infoLS2MF — Wed, 18 Dec 2024 00:08:21 GMT

Thank you!

I was able to get it just right!

Cheers,

Patrick