[noob inside] how to make a glass ?

sylvain_henri

I've already tried to ask this question, sorry if it duplicates.

I try to make a kind of glass : a cylinder with a bottom, all of this with a bit of width.

I start by making a disk, then I offset to determine the width of my wall, then I extrude my wall... and I don't manage to make a bottom. I would like to extrude the initial disk just a few millimeter, but I don't manage to select the disk : wherever I click, I select the disk *with the hole*. I tried to change the order I made thing (disk, extrude, and then offset) but same result.

I am sorry to ask this question because this is probably obvious to all of you, but I can't see it.

emagdalenaC2i

You can create a cilinder and use the shell feature 

Jake_Rosenfeld

Hello @sylvain_henri !

I made an example of what you want to do:
https://cad.onshape.com/documents/6b4e26546f87e06763f44672/w/80f5f508e670524154bbb7da/e/75fe2b92d30551bda1dff763

To do this I did the following:

• Created a sketch of a circle and another concentric circle using the "offset command"
• Extruded the "bottom" of the glass by clicking "extrude" and then clicking the inside of the inner circle and the space between the inner and outer circle
• Hide the part that was created (Using the little eye next to "Part 1")
• Show the original sketch (Using the little eye next to "Sketch 1")
• Extrude the "wall" of the glass by clicking "extrude" and then clicking the the space between that inner and outer circle.
• Make sure the second extrude is set to "Add" at the top of the dialog and that the "Merge Scope" box includes "Part 1" (You can select part 1 as the merge scope by clicking the merge scope box, then un-hiding "Part 1" and clicking on it.)

tyler_pope

I'm not sure if the exact shape that you're looking for, but the revolve command is usually the best one for anything cylindrical. That way you only have one sketch to manage for edits. 

emagdalenaC2i

You can create a cilinder and use the shell feature 

Jake_Rosenfeld

Hello @sylvain_henri !

I made an example of what you want to do:
https://cad.onshape.com/documents/6b4e26546f87e06763f44672/w/80f5f508e670524154bbb7da/e/75fe2b92d30551bda1dff763

To do this I did the following:

• Created a sketch of a circle and another concentric circle using the "offset command"
• Extruded the "bottom" of the glass by clicking "extrude" and then clicking the inside of the inner circle and the space between the inner and outer circle
• Hide the part that was created (Using the little eye next to "Part 1")
• Show the original sketch (Using the little eye next to "Sketch 1")
• Extrude the "wall" of the glass by clicking "extrude" and then clicking the the space between that inner and outer circle.
• Make sure the second extrude is set to "Add" at the top of the dialog and that the "Merge Scope" box includes "Part 1" (You can select part 1 as the merge scope by clicking the merge scope box, then un-hiding "Part 1" and clicking on it.)

tyler_pope

I'm not sure if the exact shape that you're looking for, but the revolve command is usually the best one for anything cylindrical. That way you only have one sketch to manage for edits. 

sylvain_henri

Many thanks to all of you for your different solution, I learned a lot with just this .