How to create angled sketch?

demetris_stavrou

Let's assume I have cube and I want to create a cylinder hole on that cube. The cylinder needs to have a specific angle with respect to the cube surface. I imagine I have to create a plane with that angle. What is the procedure to achieve this?

Thank you!

nav

Hi @demetris_stavrou , you need to create a Line Angle plane.



https://cad.onshape.com/help/index.htm#cplane.htm?Highlight=line angle

nav

Hi @demetris_stavrou , you need to create a Line Angle plane.



https://cad.onshape.com/help/index.htm#cplane.htm?Highlight=line angle

demetris_stavrou

This solves my problem. Thank you!

karen_bogoski

How would this work if my shape was cylindrical with a 45 degree face, and I needed to have holes at a 36 degree angle? 

steve_shubin

@karen_bogoski

Here is one way

https://cad.onshape.com/documents/183cb69408cb0800fc784d16/w/90f1051dc103fc886f54d5e6/e/e32a0c0c589d07396e274e29

karen_bogoski

Yes, that's what I need to do, but I can't get the 45 degree plane.  I played with it and can't get it to cooperate.  How did you make yours?

bruce_williams

@karen_bogoski
try removing the 2nd direction from extrude.  Steve had that because plane at is above and below the angled face so the extrude needs to go both ways to complete.  it just has to do with how the plane is positioned.

steve_shubin

@karen_bogoski

@bruce_williams hit the nail on the head

If you need anymore help Karen, let us know

karen_bogoski

I'm sorry, I just don't get it.  Steve's extrude is after the angled plane is created, it's working off the revolve.

karen_bogoski

When I add the angled construction line my document sees it as part of the front plane and not the edge and vertex of sketch one.

bruce_williams

karen_bogoski said:

I'm sorry, I just don't get it.  Steve's extrude is after the angled plane is created, it's working off the revolve.

Yes. If you step through his Feature list you should get the logic.  Sketch 1 has both the geometry for Revolve and the construction line dimensioned for the Plane creation.  Then the hole sketch is made on that plane and remove Extruded from the Part. The angle of the hole is really driven by the dimension to construction line in Sketch 1.

karen_bogoski said:

When I add the angled construction line my document sees it as part of the front plane and not the edge and vertex of sketch one.

We may be best able to see what is wrong if you share a public URL - see instructions here.

Also - the Learning Center is very effective for understanding Onshape.

steve_shubin

@karen_bogoski

AS BRUCE SAYS — Sketch 1 has both the geometry for Revolve and the construction line dimensioned for the Plane creation.

steve_shubin

@karen_bogoski

OK, after you make the plane shown in the GIF above, you can use that plane to sketch the circle for your extrude

karen_bogoski

https://cad.onshape.com/documents/dbaac5daf3b47938a1fafe86/w/f0ca036a3382a7bc2c27ac9f/e/d7b29cefb328bda3f35efa3b

What kind of circle cursor is that?  

steve_shubin

@karen_bogoski

center point circle

steve_shubin

@karen_bogoski

Oops !

You were asking about the CURSOR
Not what circle tool I used

The cursor is on my Onshape iPhone app. You’re not gonna find that kind of a cursor on Onshape’s browser apps — at least not that I know of

I will say this — It is a nice feature of the mobile app

karen_bogoski

Steve_Shubin,  When you do these same steps in the desktop app, do you get the same results?  When I open the plane tool and try to select my construction line it shows in the dialogue box as the front plane not the construction line like in yours.  I don't understand why mine is different.

dirk_van_der_vaart

I think this is what your looking for.
https://cad.onshape.com/documents/2855ee75a49186358cc8b2f6/w/9e1deac08d01e6fd0d38ed2b/e/408bfc07d847fbec6d0874aa

bruce_williams

@karen_bogoski
make sure you are selecting the line; not the sketch or plane

You may need to use trial and error in the features to understand them.  And they all depend on correct selection.

steve_shubin

@karen_bogoski

If an existing plane keeps getting in the way of your selecting something, then hide the plane. In fact you might as well hide all the planes right now, as you don’t need them to show at this time