topic Re: Extrude/Loft to point on a cylinder in Fusion Design, Validate & Document Forum

Extrude/Loft to point on a cylinder

david_shepheard2003 — Sun, 08 Sep 2019 10:31:04 GMT

I'm trying to model a whisky tumbler, like the attached picture, but I'm not sure how to get the cuts to go into the body of the glass at a point.

I can use a spline to draw the "leaf" like pattern, extrude to the body of a glass and pattern that around, but the key thing is making that extrude go into the body to a point, and not squared off. Setting a tapered angle doesn't seem to work

Any suggestions?

Re: Extrude/Loft to point on a cylinder

davebYYPCU — Sun, 08 Sep 2019 11:28:10 GMT

Simple example, but technique is the same for a cylinder,

Sweep > Cut a triangle profile on 3d spline curves.

For a tumbler, uses sheet metal to unfold, Sweep cuts, then Pattern the cuts, and refold, finish to suit.

Re: Extrude/Loft to point on a cylinder

david_shepheard2003 — Sun, 08 Sep 2019 14:37:02 GMT

Thanks, I can see how your example works, very nice... However if I draw the cross section of the tumbler, revolve it to create the cylinder, I'm not sure how to unfold this to apply the sweep cuts?

Going Sheet Metal --> Unfold doesn't let me select the cylinder body.

Re: Extrude/Loft to point on a cylinder

wmhazzard — Sun, 08 Sep 2019 14:50:35 GMT

Here are the steps that you need to do to make features on a sheet metal cylinder.

https://www.youtube.com/watch?v=xN5uqSyG6YA&t=304s

After you get the features that you want on the sheet metal cylinder, you can then combine the cylinder with a solid body glass.

Re: Extrude/Loft to point on a cylinder

davebYYPCU — Sun, 08 Sep 2019 15:06:19 GMT

Have a look for Wrap, unwrap threads,

You have to make the cylinder wall in sheet metal (first) I would only make one segment of wall there, add a flat extrusion, and work in there (flange, Extrude, Unfold, change to modelling, construct the Sweep cuts, change to Sheet Metal refold it,)

coming back to modelling to remove the extrusion - then pattern the rest of the wall.

say the pattern is 10 times, make a 36 degree arc flange, later pattern it 10 times, and Combine Join to the floor of the glass.

can demo tomorrow.

Might help...

Re: Extrude/Loft to point on a cylinder

davebYYPCU — Mon, 09 Sep 2019 00:55:54 GMT

Updated the (same) file, and left you to remove this helper body section.

Step up the timeline

Having done the finishing,

Body is converted to be a sheet metal body but has no consequences for the combine or pattern.

Might help.....

Re: Extrude/Loft to point on a cylinder

david_shepheard2003 — Mon, 09 Sep 2019 07:25:55 GMT

Do you mind attaching the updated file please 🙂

Re: Extrude/Loft to point on a cylinder

davebYYPCU — Mon, 09 Sep 2019 07:36:58 GMT

Well I am positive I did, first time round, but maybe the 2nd pic changed that....

Re: Extrude/Loft to point on a cylinder

david_shepheard2003 — Mon, 09 Sep 2019 07:40:53 GMT

Amazing! Thank you for the help