Projection or intersection draws and solids

angelo_scozzarella

A construction like this would be very easy and speed with a project geometry function. Where I have to looking for onshape?

dirk_van_der_vaart

Have you seen the learning centre,
https://learn.onshape.com/catalog?labels=["Learning Pathways"]&values=["All"]
And take a look at Linear Pattern

angelo_scozzarella

Thank you for advice. I didn’t understand if can find a project geometry function like in Autocad. Could you, please, help me?

angelo_scozzarella

The repetition along a path can change the dimension of part?

example:

romeograham

Check out the features of Patterns in this webinar: https://www.youtube.com/watch?v=4thhe0pidKI

There are some good techniques here.

angelo_scozzarella

thank you, but I can’t find a repetition patterns that follow four curves that change, along the path, the reciprocal distance.

eric_pesty

@angelo_scozzarella
There is no function that will do this in one step...

You could pattern the full size part, create a loft along the 4 curves as an "intersect". The only thing is that the edges will follow the shape of the loft (rather than be normal to the pattern direction).

If you need the sides to be parallel to the pattern you can pattern a surface for the base of each piece, create the loft as a surface and trim the patterned surface and then extrude all these faces at once, so a few more steps...

eric_pesty

Quickly looked at an example of the two options I discussed above:

Solid intersect ("Intersects" configuration):



Trimmed surfaces ("Surfaces" configuration):


Note for the surface options you could also do the trim and extrude before patterning (and use the "apply per instance" in the pattern), which would save you some selection if the pattern has many instances, see "Surface2" configuration in the example:

https://cad.onshape.com/documents/b4a2db4d3bc4c30d96773c15/w/bb16ff9cf84d6fe499b5a94d/e/9f261882bf7318e29e9fb2ab

angelo_scozzarella

Yes, Eric. What I want to say is that, in my opinion, Onshape would have a function like Project Geometry.

angelo_scozzarella

Thank you very much, Eric. Very interesting. I didn’t understand what exactly to do, but will get in deep.

steve_shubin

@angelo_scozzarella said:

… patterns that follow four curves that change

Minus the variables in the feature tree, we are only talking 5 features. I hope that is easy enough

To adjust — tweak the variables or sketches

This particular sketch profile gives the sides of the eight parts curvature. Either concave or convex

https://cad.onshape.com/documents/d0de42504d4cb788c05e4ec8/w/ba8a744baa872845174beafc/e/30521fbbb462984482142a1e

dirk_van_der_vaart

https://learn.onshape.com/catalog?labels=["Videos"]&values=["Configurations"]

angelo_scozzarella

Thank you very much, Steve.

dirk_van_der_vaart

This is what you are looking for, the Onshape term for Project Geometry is Use.
https://cad.onshape.com/help/Content/sketch-tools-use.htm?Highlight=Use

angelo_scozzarella

Thank you Dirk. The problem is that Use doesn’t project on a solid but only on a plane or on a face at a time. So you have to repeating each Use for each face and doesn’t allow to projecting more than one sketch, for example a series of line.

Jake_Delano

@angelo_scozzarella
Use allows you to project geometry in sketches

angelo_scozzarella

Thank you Jake, I see. But would be useful projecting geometry in sketches all around a solid, without select face for face of the solid.