Help finding the center of this wheel

dkortman

I'm using this model for a CFD simulation and I'm trying to find the center of this wheel. Everywhere i've looked, everyone just selects the wheel and it shows the center. Why doesnt it show it on mine? Any help would be appreciated. Thanks!

bruce_williams

for the best help, share your doc as public - see instructions here

some possible reasons and solutions
1) the geometry may not be truly round
2) try picking just the edges
3) try placing a mate connector
4) make a sketch and trace over the perimeter with 3 point diameter circle

dkortman

bruce_williams said:

for the best help, share your doc as public

some possible reasons and solutions
1) the geometry may not be truly round
2) try picking just the edges
3) try placing a mate connector
4) make a sketch and trace over the perimeter with 3 point diameter circle

Okay, I made it public. I tried to select just the edges, but I wasn't sure if it was giving me the coordinates of the center of the wheel or the center of the half-circle. And to be honest, I have no clue how to do those last two tips, I'm very inexperienced with cad.

bruce_williams

@dkortman
Hi Dylan, 

Welcome to Onshape and the forum.  You will find folks are very helpful here. 

Please look at my original answer; there is a link to 'Read this first' post that gives instructions on sharing public doc.  Yours is read only so I had to make a copy.

Next as a beginner, you should work through the lessons at the 'Learning Center' button upper right corner.  The tutorials there are excellent.

For your question click the edge of wheel, it will show 1/2 highlight, then in bottom left of window, click the measure icon that has a center position. See this animation.