How to draw 3D solid wheel rim

[Rob Preston]

Hi

I am trying to produce a solid 3d image of a model locomoptive wheel to be used as a pattern (for casting by investment casting) the image will be used to make a rapid prototype by SLA.

The prblem is that I have made an outline of the rim contore using a solid polyline and have tryed to extrude using a circel as a base line and it simple wont follow it any sugestion are very welcome.

Regards

Rob

crosti wheel draing outline.dwg

[ReMark]

Is that why you used half a circle because extrude would not work?

 

Did you try using the Sweep command with a full circle? I think that would work.

[Rob Preston]

Thanks I will try that and let you know.

 

Regards

Rob

[JD Mather]

Thanks I will try that and let you know.

 

Regards

Rob

 

If you are using 2006 you don't have Sweep command.

Students can download AutoCAD 2010 for free from http://www.autodesk.com/edcommunity

[DECHAL]

Try the revolve command! Just need the centre of the wheel.

 

Regards,

 

DECHAL

[Hoozin]

I took a look at your drawing and it looks like you have the whole wheel (unless I'm missing something). You do seem to have gone about it a little oddly, but that's not something to be ashamed of - I'm always impressed by how some people get to what they wanted

 

That said, it's in two halves. Just use the UNION command, select both of them, and you'll be left with one 3D solid that is your wheel.

 

Edit: Like DECHAL said, I think REVOLVE would be the command you'd really be looking for on this one for the future.

[Rob Preston]

Thanks Will

 

I shall try that

regards

Rob

[Rob Preston]

Union works a treat

 

Thanks everyone

 

Regards

Rob

[ReMark]

Sorry about the SWEEP command suggestion.

 

I had a go at your rim. I redrew the profile you used then relocated it to the (clock terminology here) 3 o'clock position on the circle. Rotated it then used the extrude command. I got it to work. Don't ask me why it did or how 'cause I don't know. Here is the proof:

 

[t-bear]

I deleted one section, exploded the other and erased all the wheel geometry except the profile (region). then I drew a line in the Z from the center up, and used that as the revolve center points for the revolve command. worked a treat!

[Rob Preston]

Thanks T-Bear.

 

I never thought I would get so much help from this site..

Best Regards

Rob:shock: