topic Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails. in Fusion Design, Validate & Document Forum

Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

merrillmitchell — Thu, 06 Jun 2024 11:02:30 GMT

I am really at a loss. I have worked on trying to get these two pieces (one piece actually) to connect for almost two years and I can not get it no matter what I try. Someone had recomended using surface lofts, but the same issue arose. The loft will work until I add the rails. Sometimes it says the rails connect, sometimes not. Everytime the loft twist. In one example I was able to move the mapping point around; but they do not show up as editable here.

Also, is there any way to make the curvature less harsh?

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

davebYYPCU — Thu, 06 Jun 2024 11:40:35 GMT

Why does @etfrench’s solution not work?

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

merrillmitchell — Wed, 12 Jun 2024 10:56:01 GMT

I do not know how he got to his solution. When I try to solve with his method, the same thing happens and I can not move the mapping points. Just, like i said above.

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

davebYYPCU — Wed, 12 Jun 2024 12:01:04 GMT

I thought I had seen this or similar arm before.

Taking a lead from the supplied pic, and the sketches in the file, break it down to baby steps

I presume you are trying for a Loft from cut edges of body 14 and 15. that works with your Rail sketch, (similar to Body 17 on the other side)

But when I unhide body 5, you get this.

Not sure what you want, but the first external surface is the same as @etfrench had suggested.

There is no construction for a loft to body 5, so was not attempted.

Might help....

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

TrippyLighting — Wed, 12 Jun 2024 15:28:03 GMT

@merrillmitchell wrote:

I am really at a loss. I have worked on trying to get these two pieces (one piece actually) to connect for almost two years and I can not get it no matter what I try.

I personally from an aesthetic standpoint find the random blobby lofts that have been proposed so far unattractive.

A more "mechanical" way of connecting the different geomerties would "look" better.

But just now looking at the model again, I can "see another interesting option. BRB 😉

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

TrippyLighting — Wed, 12 Jun 2024 16:09:05 GMT

Here is another option. It could do with some refinement for better transitions, but I hope the design conweys the overall concept.

Re: Twisting Lofts, mapping points are not appearing to edit. Loft twist when adding rails.

TrippyLighting — Wed, 12 Jun 2024 16:30:45 GMT

Aaand #3:

Note that none of these need any lofts 😉