Revolution on DatumLine

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anno15
Posts: 75
Joined: Thu Feb 28, 2019 8:26 pm

Revolution on DatumLine

Post by anno15 »

Hello,

I tried to revolve Sketch081 with DatumLine002 and 360°.
The same with Sketch083 and DatumLine002.

I always get a calculation error.
Attachments
pipe.FCStd
(755.92 KiB) Downloaded 16 times
1.png
1.png (58.63 KiB) Viewed 303 times
Bance
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Posts: 4249
Joined: Wed Feb 11, 2015 3:00 pm
Location: London

Re: Revolution on DatumLine

Post by Bance »

It's a co-planar issue, you may search the forum for a deeper explanation.

Basically it is a rounding error in computation, you can workaround by making the revolution before the pocket, and adjusting such that the pocket has a different diameter than the ID of the revolve.
Attachments
revolve.png
revolve.png (69.07 KiB) Viewed 290 times
chrisb
Veteran
Posts: 54150
Joined: Tue Mar 17, 2015 9:14 am

Re: Revolution on DatumLine

Post by chrisb »

Seems to be a coplanar issue. It works with a slightly modified sketch moving the revolve up the tree:
SnipScreenshot-fa62a5.png
SnipScreenshot-fa62a5.png (9.76 KiB) Viewed 279 times
I removed the last pattern to reduce the filesize

Edit: crosspost with Bance.
Attachments
pipe_cb.FCStd
(900.89 KiB) Downloaded 14 times
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