topic How to limit a loft? in Fusion Design, Validate & Document Forum

How to limit a loft?

Anonymous — Tue, 21 Jun 2016 13:24:31 GMT

Creating a loft from profile1 to profile2, but what I want is the loft to stop at at the face of the body it's entering.

Any pointers please?

Re: How to limit a loft?

James.Youmatz — Tue, 21 Jun 2016 14:00:17 GMT

Hi @Anonymous,

Welcome to the Fusion 360 Community!

I have one idea here! Probably one of the more simple options for your already built loft, assuming that loft is the correct shape that you want (minus the part that went into the inside), would be to edit the loft feature from your timeline (right-click it in the timeline) and change the operation from Join to New Body (assuming that it is not already a separate body). Then, you are going to want to go to the Modify menu and select Split Body, choosing your Loft as the Target Body and the Horseshoe body as the Splitting Tool. This will then create a separate body for the piece inside the horseshoe shape, for which you can then Right-click that body from the browser tree and select Remove (hitting delete will make Fusion try to heal the model). Then, once the unwanted pieces are removed, you can do a combine from the Modify menu to join the loft and the other body together for a smooth intersection.

I'm sure there are other ways to do this, including using rails as well as moving the loft profile, but this is the first one that came to mind for me! Simple, although adds a few extra steps to the timeline. Check out this screencast below for more details!

Re: How to limit a loft?

TrippyLighting — Tue, 21 Jun 2016 14:02:37 GMT

You cannot do that.

When you create the loft, if thee's an option "New body" select that ( I am not on my Fusion station and don't reember).

However, what you can do is to use "Modify->Combine" maybe with teh CUT option and "Keep Tools" enabled.

Use the Loft as your target body and the U-Shape as the tool. Then you'll be left with thre bodies. The part of the loft that you want to kee, the U-Shape and hte part of the loft iside the U-Shape that you don't need. Right-click on that and Remove (not delete) that body.

The use "Modify->Combine" on the remaining lft and U-Shape with this time with the JOIN option.

This will give you exactly what you want.

Re: How to limit a loft?

TheCADWhisperer — Tue, 21 Jun 2016 14:17:24 GMT

Is something like the attached what you are after?

Re: How to limit a loft?

Anonymous — Tue, 21 Jun 2016 14:24:19 GMT

Thanks everyone, all done now. Very much appreciated 🙂

Re: How to limit a loft?

TheCADWhisperer — Tue, 21 Jun 2016 14:56:46 GMT

I have no way of knowing your design intent - but your loft transition looked a bit "harsh" to me.

Check at the attached alternative design.