Simple CAD help
 

I am a freshman who is just learning Inventor, and I was wondering about
how to make in CAD a funnel with the tube and the floating circle.
This is what I have so far:

Re: Simple CAD help
 

Try using the loft option. If it is anything like the lofted flang option available for working with sheetmetal, then it should do what you want. I'll experiment a little though, in case that doesn't work.

Re: Simple CAD help
 

Alternatively, you can draw up the profile and just rotate it :) Either way is just fine.

Re: Simple CAD help
 

It is simplest to use a revolve for that.

Attachment 13410

Draw a sketch like that and then do a revolve. Select the line on the bottom as your axis and you'll get a funnel shape.

Re: Simple CAD help
 

I tried loft earlier, but it came out like this, where i want it hollowed out.

Re: Simple CAD help
 

That is an option, though a loft of that nature with the existing geometry shown will give a solid cone on the end of the tube.

If however, you want your cone to be hollow as well, you can add an addtional circle in the middle of the existing one, in hopes that it creates the wall. If that does not work, it would not take long to do a Revolve Operation. In that case, simply draw and dimension the upper half of the wanted section view, draw the centerline, and apply the revolve feature.

I was just teaching some of our kids how to do those two different strategies today actually! There are many youtube videos of Inventor and SolidWorks on youtube, and both may be helpful due to the similar nature of the two programs. If those do not solve your questions in a timely manner you can always PM me or post again!

Re: Simple CAD help
 

Thank you for the help everyone!

Re: Simple CAD help
 

I agree with the sketch > revolve work flow. Also, to hollow out the part, use the Loft command. Loft is high up on my coolest commands in Inventor list!

If you need further help, post me the dimensions and I can assist, although there is always a lot of great help from other teams on this forum.

Re: Simple CAD help
 

Going further, The same part, when added to a full design, refuses to go to where I want it to.
This is where I put it, and then I save it:


Then when I save it, and then open up after closing it again, it just goes back to the original placement:

Re: Simple CAD help
 

Are you fully constraining it in place?

Re: Simple CAD help
 

Oh, that must be it. But it does not explain why a few other pieces are staying in place after a save...

Re: Simple CAD help
 

Depending on the constraint, you need 1 to 3 constraints to secure one part to another.

Could you zoom in on the part and also open up any constraints you have on the part thats moving?

Re: Simple CAD help
 

Just do a loft then shell the whole thing.