roll tape

eric_mendez336

Dear mister OnShape, i want to make a roll tape with the helix tool, but it can´t select mi circle face, just works on extrude, can you help me to make my roll tape
i would apreciate that a lot

Thanks, best regards to you mister OnShape

john_mcclary

To make a helix, you need a cylinder face to select.

The simplist way is to extrude your circle as a "surface" to the height of your helix.

When you say "roll tape" I imagine a spiral instead of a helix. OnShape doesn't have a spiral tool yet, but someone may have a featurescript that makes spirals.

NeilCooke

You could create a conical surface, create a helix, then afterwards create a sketch and "use"
the helix. 

owen_sparks

NeilCooke said:

You could create a conical surface, create a helix, then afterwards create a sketch and "use"
the helix. 

Sneaky way to create a spiral, like it!

john_mcclary

@NeilCooke

I don't think i unierstand. Can i see an example?

owen_sparks

@john_mcclary

I wanted to try it so forgive me butting in.

Here be:-
https://cad.onshape.com/documents/d51ecfd36f3d4a30b03c1f21/w/b167d8936840aa422688480a/e/3d71b72c2d6614dce2e37afc


(1) Extrude cone
(2) Helix on cone
(3) Use/Project helix onto new shetch.

Owen S.

owen_sparks

@eric_mendez336 The example document above now has some "tape" with the addition of the sweep of a line to make a surface and then a thicken of the surface.  (This seemed more robust than a solid sweep of a rectangle.)



Owen S.

john_mcclary

Ah a cone

He said conical surface.. so i thought he was showcasing the new conic sketch command. lol

Thanks @owen_sparks for clearing that up

Its nice to know helix can be wrapped around more than just cylinders. Good job OS