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SWEEP???

pfadams
1-Newbie

SWEEP???

We would like to do a sweep on a cylinder. We haven't done one in a long
time. Could someone help get us pointed in the right direction

Paul

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6 REPLIES 6

Paul

I think you want a helical sweep, i.e. looks like a coil spring.

Eric Mills

Design and Project manager

http://www.rapidoconsulting.com

eric.mills@rapidoconsulting.com

I have a user that wants to have a variable section sweep that creates a "cup" geometry to mimic what is seen on LEDs. However in Creo I can't get the section to be perpendicular to the axis and trajectory. See below. I want a cup like what is shown in the blue lines, but all I can seem to get is interference in the corners as shown with the red lines. He can do a rotated cup, but that wont include the corners of the square in the "cup". Any ideas for us?

[cid:image001.png@01CEC441.F40EC4D0]



Andy Hermanson
Engineering Design Applications

tel 605.275.1040 x51114 mobile 605.951.0168
website www.daktronics.com
dgschaefer
21-Topaz II
(To:pfadams)

Your blue lines are not normal to the trajectory, assuming that the outside edge is the trajectory. You need a sketched circle on the top face with its center on the axis as the normal trajectory. No need to tie the sketch to it, it simply drives the normal.

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Doug Schaefer | Experienced Mechanical Design Engineer
LinkedIn

You will need to use a variable section sweep. And make a circular arc/circle as trajectory to sweep around. I have attached a part from Creo 2, which uses a circle and completes it in one feature. Also there is a WF4 part that does just one quarter then is mirrored twice to complete.

[cid:image003.png@01CEC4D8.7C5E7BF0]


Ron

Just wanted to share a different technique for creating this feature. I created a short video on my YouTube channel "CreoJunkie" for you to watch.


http://www.youtube.com/watch?v=upBZkdF9n3w&feature=c4-overview&list=UU89vS9l-hjWue8YteZ56esA


ΜΟΛΩΝ ΛΑΒΕ

Damian thanks a lot for the video.

Andy Hermanson
Engineering Design Applications

tel 605.275.1040 x51114 mobile 605.951.0168
website www.daktronics.com
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