Cut/intersect according to two lines on different directions

alec_liu

Please forgive my ignorance. I am new to CAD tools. I want to cut a shape with nice diagonal angle. Can someone guide me step by step to make a smooth slide from one line to another line? Please see the attached. 
I want to cut from A to B and C to D (with certain thickness).
Capture1.JPG



This is so far I can do but the shape and angle isn't ideal. I hope someone can guide me a better way to do it nicely.
.

Thank you!

mahir

I solved the instability by adding an intermediate profile. Should be good to go.

Narayan_K

alec_liu, As you said i have created a curved part with 0.3mm thick(i assumed that it is millimeter) you can check "Part 2" in the below link.Which similar to mahir model.

https://cad.onshape.com/documents/57a17d4be4b0063191e34a43/w/57503dbbd9f36b0dd86cdb5c/e/68d91033e473176f92a52430

alec_liu

I did not see answers. Why is it showing answered?

mahir

In this particular case, it seems you can do what you're requesting with a simple extrude, but perhaps I'm not understanding exactly what you're looking to do.

alec_liu

Can it be extrude in different shape? If you can see the Capture_1, I can only do a intersect with a flat plane on either line B,D with point A or line B, D with point C. But I want to keep the A,C line intact, So, it must be some kind of curve that I can keep line B,D and A,C.

mahir

A sweep or loft would probably work. Share a link to your model, and I'll work something up.

Narayan_K

@ alec_liu , You can create a surface loft to create a surface passing through 4 points(or two lines). please find the below procedure,

mahir

This turned out more convoluted to accomplish than I thought, but here you go.

https://cad.onshape.com/documents/a05aeff75e42296533f07199/w/3da90aff92f27b413a5f9fdd/e/3bde499347473efe5a1c1c52

mahir

I updated the model. It basically follows @Narayan_K's workflow. It's not very robust, though. The nature of the geometry is such that the loft generated is "wrinkly", and there is also a knife-edge condition. Neither of those things are currently handled very well by OS.

mahir

I solved the instability by adding an intermediate profile. Should be good to go.

Narayan_K

alec_liu, As you said i have created a curved part with 0.3mm thick(i assumed that it is millimeter) you can check "Part 2" in the below link.Which similar to mahir model.

https://cad.onshape.com/documents/57a17d4be4b0063191e34a43/w/57503dbbd9f36b0dd86cdb5c/e/68d91033e473176f92a52430

alec_liu

Thank you Narayan for the excellent explanation and Mahir for your great help!