How to make a trapezium shape with an oval top?

azka_mahmood · March 18

Hi, I am trying to make this type of shape but I am unable to, please help

Image: https://us.v-cdn.net/5022071/uploads/editor/bn/ozo6zt6cxvbd.png

here is a link to a document I used
https://cad.onshape.com/documents/e175b8ea66889266ebcfc033/w/bf83b76cf236aecbc12b061b/e/da5d06d9c8ef2fe87b4a4fc3?renderMode=0&uiState=65f7779aaa6eca658a82aac4

nick_papageorge073 · March 18

That is a difficult shape. You will need curves and surfaces to do it. There are 2 or 3 training courses in the learning center for both curves and surfaces that would be a good idea to take.

If the sides can be simpler, you could do it like this, which does not need any curves or surfacing tools:

https://cad.onshape.com/documents/1e22886c701a65c37b65e04b/v/d00e5e9f6c32a03859caaebf/e/40772e7ec789b4b6e201005e

Image: https://us.v-cdn.net/5022071/uploads/editor/dz/zoib53q4lq64.png

azka_mahmood · March 18

Thank you so much for your help @nick_papageorge073 I will definitely look into those learning courses, you saved me so much time I am so grateful!

john_lopez363 · March 18

The shape is simple... you just need to learn how to properly use the Loft Feature. As mentioned, there are lot's of OnShape Training courses. Highly suggest you at least go through all of the Basics and Fundamentals courses.

Image: https://us.v-cdn.net/5022071/uploads/editor/hp/jxd2saryux6j.png

martin_kopplow · March 18

You'll need to make some three-dimensional defining geometry. Maybe first consider what basic shape the case is built upon, model that, then add details. A quick sample:

Image: https://us.v-cdn.net/5022071/uploads/editor/gr/oej2mo8flwk5.png

https://cad.onshape.com/documents/40222e942195cd8fa7c015ee/w/44011a689c75b9b3cfa6ccfb/e/2b5cd19715e89489ebda41ee?renderMode=0&uiState=65f8a869cd7a31492552b146

How to make a trapezium shape with an oval top?

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