cut with a surface

don_howe

is it possible to cut with a surface? I tried the thicken option but couldn't get enough thickness to cut the part

https://cad.onshape.com/documents/71f32dc45abd4884aa76c045/w/61c0ec2dae48406080ccef39/e/b4a44f50708e4d3488d143c0
 

andrew_troup

You can split parts using surfaces, and then simply delete whichever new part represents the unwanted side.

https://cad.onshape.com/help/#splitpart.htm?

andrew_troup

You can split parts using surfaces, and then simply delete whichever new part represents the unwanted side.

https://cad.onshape.com/help/#splitpart.htm?

don_howe

Thanks that's what I needed. I was trying to do it with extrude and thicken.

_Ðave_

I could only choose 1 surface to split the part and was unable to select both. Therefore I went ahead and thickened your surfaces a did Boolean subtract then hide the remaining piece.

 https://cad.onshape.com/documents/0b426828b6474c78909a6732/w/1e084a4936e341c8af91ebc5/e/27d9514be44a467eb22e9ed0

andrew_troup

At present we cannot knit surfaces in Onshape.
The only way I'm aware of to create surface knits is to model them in a single feature.

don_howe

I was able to create a loft and then I used the split part option, essentially trimming the part. Now if I could only do a variable radius.

pat_kelemen

andrew_troup said:

At present we cannot knit surfaces in Onshape.
The only way I'm aware of to create surface knits is to model them in a single feature.

A separate topic, but something I had to find out today (and would have been helpful to know generally). The fill feature will automatically knit a surface body to create a solid (if all surfaces of the knit are selected to create the fill surface).

If you have geometry where that's not the case, but have a group of surfaces that could create a closed body, the union feature can be used to create a knit (or, create a solid from the group of surfaces).

It's possible these features were not an option at the time of the creation of this thread, but for anybody trying to knit like how SolidWorks allows, these features will be the equivalent of what you would use.

S1mon

This thread is ancient (in Onshape releases). As you say the Boolean union feature will knit surfaces, and there's also mutual trim now too.