I'm trying to accurately model radial and axial ribs on a parabolic (curved) surface. The radial ribs are easy enough, but I'm having difficulty with the axial ribs.
This is very similar to what I'm trying to accomplish.
Don't think you could make ribs using Rib feature. So make a revolve feature instead.
what version of solidworks are you running? I'll try and send you a file giving you some assistance on how you could do them
ah, that is a prob as I only havbe 2014 onwards, will send you a few screen shots
Thanks. I think we have someone with 2015 installed.
Did the above help? Also did you find anyone with 2014 / 2015 installed?
Create an initial revolve which would be the job at rib level from there you can build up the ribs.
Create a sketch on one rib to run around
Then use the revolve boss/base command to produce one rib.
You can draw all the ribs in one sketch and revolve all in one go.
1. Do not forget that you can revolve thin features.
2. Do not be concerned with the height of the ribs. They can be shaved off with a secondary revolve-cut.
We do have someone with 2015 installed.
Thanks, but I have a handle on the radial ribs. It's adding the axial ribs below where I'm struggling.
Here is what I have so far, but the intersections are not correct.
Here is my feature tree
Use the divide and conquer approach.
1. Extrude Blind all the ribs from the same sketch (thin features work fine). You can radiate from a center. Make sure they penetrate through the dish (how much is not important).
2. Revolve a separate body (do not merge) representing the thickness of the ribs.
3. Run Combine/Common on the 2 bodies.
That is assuming that you are ok with the side faces of the ribs being parallel.
If that is not acceptable, use the Split line + Offset Surface + Thicken.
Thanks. I was no where near this solution.
Yeah, that's why I like the multibody environment. Divide and Conquer!
And this are the offset ribs. I was lazy so I started from the previous model. See attached.
Similar to Alin's technique, but a little different. This is my go to modeling work flow for ribs on swoopy plastic parts that need to follow the contour of the outer surface.
In this example there is no need to extrude the ribs as a separate body. However, this has the benefit of the cutting surface only working on the ribs, and not other geometry you may have on the part.
Andrew Lowe: Similar to Alin's technique, but a little different. This is my go to modeling work flow for ribs on swoopy plastic parts that need to follow the contour of the outer surface. In this example there is no need to extrude the ribs as a separate body. However, this has the benefit of the cutting surface only working on the ribs, and not other geometry you may have on the part.
Building on Andrew's example, but replacing 3 features with 1 (Intersect).
You learn something every day Alin. I need to make it to your Multi-Body SWW presentation still. Hopefully this year in Dallas.
I got a bit distracted by a meeting, so late to the party, but my first thought was extrude from surface.
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