topic Re: V-carve on curved surfaces? in Fusion Manufacture Forum

V-carve on curved surfaces?

Sandflo — Mon, 16 Nov 2015 14:11:20 GMT

Nice november update, been waiting for the engrave toolpath 😉

But is there a workaround to get the v carve to follow a curved surface? For example if you have som text in a big sphere or something?

Thank you in advance!

Re: V-carve on curved surfaces?

jeff.walters — Mon, 16 Nov 2015 20:19:20 GMT

Before we can engrave on an arc we will first need 4 axis continuous cutting, and I'm not 100% sure but I don’t know of a way to wrap text on the round

Re: V-carve on curved surfaces?

dave.anderson — Mon, 16 Nov 2015 20:24:36 GMT

I checked with the Fusion Support guys and there's no command currently available to wrap text on a face or place it on a path along a curve.

Re: V-carve on curved surfaces?

HughesTooling — Mon, 16 Nov 2015 20:31:44 GMT

Project onto surface seems to work OK!

Mark

Re: V-carve on curved surfaces?

jeff.walters — Mon, 16 Nov 2015 20:34:31 GMT

can you cut into the part now?

Re: V-carve on curved surfaces?

HughesTooling — Mon, 16 Nov 2015 20:44:38 GMT

Not with V-Carve it just flattens the curves to the height settings. My post was more about the statement that "there's no command currently available to wrap text on a face". I have a plug-in for Rhino that does V-Carving with 3d lines like the one's in my post. It's not really any different to 2d curves in that it maintains 2 or 3 point contact, similar to pencil machining.

Mark.

Re: V-carve on curved surfaces?

scottmoyse — Tue, 17 Nov 2015 00:40:26 GMT

You can get a result using the Pencil strategy. It will pull up in the corners on curved surfaces. Just make sure the tip radius of our chamfer tool isn't 0. The smaller it is, the longer it will take to generate.

Re: V-carve on curved surfaces?

kellings — Tue, 17 Nov 2015 01:34:36 GMT

There is currently no emboss/engrave command to create text on a cylindrical face, but you can replicate the emboss/engrave command (about 95% of it) using a couple of different methods.

Kevin

Re: V-carve on curved surfaces?

Sandflo — Tue, 17 Nov 2015 07:31:17 GMT

Thank you everyone for your answers.

Its what Hughestooling descripes, that is what i mean, it doesnt need to me a wrap, just a text on a curved surface, just not 2d.

Could someone give me an example on how to use the pencil path to have the same result, but on 3d surface?

Thank you once again.

But am really waiting for the wraping fuktion

Re: V-carve on curved surfaces?

HughesTooling — Tue, 17 Nov 2015 11:42:45 GMT

@dave.anderson wrote:

I checked with the Fusion Support guys and there's no command currently available to wrap text on a face or place it on a path along a curve.

After thinking about this and Jeff's post above I realized you are talking about wrapping the text around a shape rather than projecting. For wrapped text you do need 4/5axis and at the moment there is no way to wrap curves around a surface in Fusion. What I'm after for mould making is projected curves, engraving with 4 axis could produce undercuts that would not eject form a mould.

Here's an example where the text is projected and machined with on 3 axis, it would be nice if the new Engrave op could use the 3d curves as I think it would calculate faster then using Pencil on a 3d model.

Mark

Re: V-carve on curved surfaces?

HughesTooling — Tue, 17 Nov 2015 11:49:16 GMT

Hi @Sandflo

Here's an example fsd using pencil.

Mark

Re: V-carve on curved surfaces?

scottmoyse — Tue, 17 Nov 2015 19:46:27 GMT

@HughesTooling wrote:

Hi @Sandflo

Here's an example fsd using pencil.

Mark

You beat me to it. Nice work.

Re: V-carve on curved surfaces?

Sandflo — Tue, 17 Nov 2015 19:56:40 GMT

@HughesTooling

Thank you, ive tried on my own now and figured it out, but it takes a while to calculate 😉

Please see attached

Re: V-carve on curved surfaces?

scottmoyse — Tue, 17 Nov 2015 19:59:13 GMT

The key to speeding it up is increasing the tip diameter to the largest value to can get away with. At least it does the job, albeit slower than ideal.

Re: V-carve on curved surfaces?

Laurens-3DTechDraw — Wed, 02 Dec 2015 16:00:46 GMT

scottmoyse wrote:
The key to speeding it up is increasing the tip diameter to the largest value to can get away with. At least it does the job, albeit slower than ideal.

Indeed.

Making the tolerance a little looser might help as well. I mean your engraving can most of the time handle 0.025 mm instead of the default 0.01mm tolerance.

Re: V-carve on curved surfaces?

Sandflo — Mon, 21 Dec 2015 18:12:29 GMT

Has something cahnge with the pencil operation?

I cant get it to work anymore?

If i regenerate the example the hughestolling have made it doesnt show the same?

Is something changed in a new update?

Can someone else please try?

Tiday was the day that a was going to mill it in the machine, and it doesnt work

Re: V-carve on curved surfaces?

HughesTooling — Mon, 21 Dec 2015 18:27:57 GMT

It looks like they've changed it so it will only work with a taper mill not a chamfer cutter. File attached.

Mark

Re: V-carve on curved surfaces?

Sandflo — Mon, 21 Dec 2015 18:46:14 GMT

thanks again hughes.
It works now again, wonder what the changed and why?

Re: V-carve on curved surfaces?

scottmoyse — Mon, 21 Dec 2015 18:49:29 GMT

I think that's a bug to be honest. I shouldn't have changed and breaks backwards compatibility which they never want too do

Re: V-carve on curved surfaces?

Laurens-3DTechDraw — Mon, 21 Dec 2015 19:42:31 GMT

Indeed Scott.
I've seen people post that the 2D chamfer now also only takes tapered mills so I think the wrong button was pushed somewhere.