MoI discussion forum
MoI discussion forum

Full Version: Using Sweep on corners

Show messages: All  1-2  3-8

From: Billabong
23 Oct   [#3] In reply to [#2]
Thanks Michael. I was trying to model in real world scale, but in the end I guess it doesn't matter.

Ill check the curves for any issues and then Ill try and increase the scale.

Thank you
-B
From: Billabong
23 Oct   [#4] In reply to [#2]
Scaling by 100% worked. Thank you Michael.
From: Michael Gibson
23 Oct   [#5] In reply to [#4]
Hi Billabong, also another possible technique is to do a sweep in 2 passes using 3 profile curves with the middle one slanted like this:







The pieces then will touch at their ends so they can just be joined with no extension and intersection needed.

The problem with that method is that the surface won't be an exact tube with a precise circular cross section at all points along the rail, the shape mutates a little bit as it travels along the rail and transitions from the circle profile to the slanted profile.

That's why sweep doesn't use that method currently but I would like to make it an option.

- Michael

Image Attachments:
billabong_sweep1.jpg  billabong_sweep2.jpg  billabong_sweep3.jpg 


From: Billabong
23 Oct   [#6] In reply to [#5]
Thanks Michael. What if the actual rail had more than that one corner? Say 4 different corners. Can I use 4 different profiles or is 3 the limit?
From: Michael Gibson
23 Oct   [#7] In reply to [#6]
Hi Billabong, there isn't any limit on the number of sweep profiles. But for this other technique you only sweep one smooth piece of the rail at a time, between 2 profiles at either end of it.

That's to avoid extensions.

- Michael
From: Billabong
24 Oct   [#8] In reply to [#7]
Understood. Thanks Michael.

Show messages: All  1-2  3-8