Drawing a mould flange on a revolved face

peter_roberts941

HI, Getting there.
I have created a few revolved entities, They for a two part mould. I would like to create side flanges on the sides of the mould piece. I need to know how to draw on the face of a revolved face and then make it conform to the center plane.

michael_mcclain

john_mcclary said:

Here is a short video, of how to join those easy:
https://youtu.be/mLNFdAdPw-M

That's a good simple method. In that situation, I would prefer to hold to the principle of add material, then remove. The inner section would be filled, add the flange, then make the inner cut. Doesn't always work, but that revolve could also be split into two steps. Both methods achieve the result, but depends on the design intent and downstream changes.

peter_roberts941

This is effectively what i am trying to achieve. This is an extruded sketch but i need the face to link to the extruded face.
https://cad.onshape.com/documents/99c1382b58c6245bb748a26e/w/76595707949455f677922b54/e/94fadfe03a8b8fccd96ade03

Tony_C_

https://cad.onshape.com/help/index.htm#cshid=booleanparts

peter_roberts941

I will have to work through this thanks

john_mcclary

Here is a short video, of how to join those easy:
https://youtu.be/mLNFdAdPw-M

michael_mcclain

john_mcclary said:

Here is a short video, of how to join those easy:
https://youtu.be/mLNFdAdPw-M

That's a good simple method. In that situation, I would prefer to hold to the principle of add material, then remove. The inner section would be filled, add the flange, then make the inner cut. Doesn't always work, but that revolve could also be split into two steps. Both methods achieve the result, but depends on the design intent and downstream changes.

philip_thomas

Custom Features!!!

https://www.onshape.com/featurescript

peter_roberts941

john_mcclary said:

Here is a short video, of how to join those easy:
https://youtu.be/mLNFdAdPw-M

Great and makes sense, just i am now battling to align the pieces. As you could see i drew the pieces in 2 studios and then am trying to combine them in assembly, each time i move the piece using the mouse it gets close enough to join, then clicking any of the functions my positioning is changed. Yes, i am a beginner at this and some of the answers are in a different language to me.

michael_mcclain

@peter_roberts941 You can select the Fasten mate, then hover over the origin in the assembly and you can use the origin directly as a mate connector, then fasten the main piece to the origin to lock it in the assembly space. You can then use another fasten mate to connect the flanges to the main body to hold everything together.

With your situation, I would suggest modelling the whole piece in one part studio. Make a master sketch with all the necessary features taken into account, then use portions of that sketch for individual features. The model tree would look like this:

Sketch1 (Master Sketch)
Revolve 1 (Main Body without inner cut)
Extrude 1 (Flange Extrude)
Revolve 2 (Cut from the main body to obtain the inside profile)

This method adds all material first, then you cut the inside after. Ill make an example for you when I get time.

If you have troubles with anything I would suggest to look at the learning center, the help page, or the video library. There is an abundance of free learning resources offered by Onshape.

peter_roberts941

Guys thank you again, one day i will master this.

michael_mcclain

This program is wonderful and easy to use, but it still takes time and effort to learn. I highly suggest the learning center.

Out of curiosity, what is your native language?

michael_mcclain

https://cad.onshape.com/documents/af93cb755bbcd7911a768abf/w/72ee84009e028960f1fb4d8e/e/80e6a073639473d246b4d596

Check out this document. I created 2 sketches, one for the main body and the main cut, then one for the flange and used portions of them for different features. I added the Main Body and the flange first, then cut the inside afterwards. Let me know if you have any questions and Ill be happy to answer them.

peter_roberts941

Thanks Michael, home language is English and yes it takes a while to learn. Coming off years of Sketchup the transition is frustrating. I am finding the process different and frankly mostly more logical. I will get there.