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Mixing accurate and organic

A support and feedback forum for Autodesk T-Splines Plug-in for Rhino users.

Mixing accurate and organic

Postby cadop » Tue Jun 07, 2016 2:27 am

I need some help approaching a combination of accurate dimensions with the organic ones. Eventually I will need to export to solidworks, but am currently using rhino, if that makes any difference.

Essentially I have a cylinder, and would like to blend it into two rods. so it connects to the cylinder, then flows into a rod.

I have attached some images. The red one is disconnected and I made manually, but similar to what I am trying to achieve.

Originally I had fewer segments on the cylinder, which blended well, but I could not maintain the dimensions of the cylinder correctly. Then I tried just extruding out the side of the cylinder, but it destroys the cylinder. So I used crease, but with crease it stops the smooth transition into the rod. Is there a tutorial that goes over this type of thing? I had viewed the tsplines bike modeling on youtube https://www.youtube.com/watch?v=REBp96UJR_U, and in the end no accurate parts were made. In the beginning there are two cylinders in the part where the wheel attaches (i think), but they were then deleted. Essentially I would want to connect the tspline modeling to those cylinders.
box view of few segments with cylinder
Capture6.JPG (22.04 KiB) Viewed 3196 times
few cyclinder segments, smoothing removes dimensions of cylinder
Capture5.JPG (27.08 KiB) Viewed 3196 times
smoothing when removing the crease
crease with smoothing
Using crease, box view
Capture.JPG (20.78 KiB) Viewed 3196 times
Essentially what I want
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Joined: Tue Jun 07, 2016 2:16 am

Re: Mixing accurate and organic

Postby JSantocono » Thu Jun 09, 2016 9:05 am

Hi cadop.

As far as I remember there is no tutorial on this specific subject...

It seems that you need to pull the rod in to get a cleaner cylinder end... but is difficult to say with the screenshots.
Can you post the model? (or send it to me?)
I can take a look and maybe suggest a better approach.

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