Ability to create helix spring with spring eyes

andreas_scholz

I tried to create a helix spring with spring eyes one each end. Helix creation is no problem. Spring eyes I defined with a sketch and used composite curve to have a single guide curve for the sweep. I miss the functionality to add a 3D-corner with defined radius. Spring does not look fine at the moment.

lougallo

I have moved this over to the Product feedback since this is a very specific need.  This could be done as a FeatureScript and features like this are the reason we created the language.  It does not make sense to add this to our helix tool but would make sense for a spring featurescript.

andreas_scholz

Hi lougallo,
the possibility to add 3D-corners is not limited to create helix springs. This was the actual problem I had. It would also be useful to add 3D-corners between any other curves that intersect or are connected. Perhaps FeatureScript would be a solution as well. But I am not familiar to programming.

konstantin_shiriazdanov

while there is not 3d sketching functionality you may try to use briging curve
https://cad.onshape.com/documents/c069ddefb6e8bbe1de68bec0/w/e5545c1c8009fef5a7cee3a4/e/4e1018563d5e889f70f49ee5

andreas_scholz

Thank You for the hint. It is not exactly what I need (missing defined 3D-radius), but sufficient for the moment.

ilya_baran

One thing to keep in mind is that a "3D corner" cannot always be an arc: if tangent lines to the two curves are not parallel and do not intersect in 3D (e.g., in the case shown), there is no arc that is tangent to both curves.

NeilCooke

It is possible to build this with normal features, though it takes a few: 
https://cad.onshape.com/documents/d6b22bb18dc3cfb687298460/w/6703ddb0819f93dab96a32d2/e/5107e20a58183eeda2f2a5d0

andreas_scholz

Thanks a lot for this solution. It is a little bit round the corner, but helpful!

NeilCooke

@andreas_scholz - Part Studio 2 in the Doc above has a better solution

brucebartlett

Try this one, I think it has the transition your after, it was done a long time again and would be a lot easier now with the projected and composite curve like to mention, I was thinking would be also good to have variables to control this too. Just waiting for configurations to make a really nice version of this. Hope it helps.


https://cad.onshape.com/documents/cdae3a1f009f41e8b5dd7e9f/w/96a0850e944040979fd806e6/e/02d0b2e6e5f14132a6678321

Cedric_Eveleigh

It would be nice to be able to project a helix curve on a sketch curve in Onshape, like what can apparently be done in Solidworks as shown in this video: https://youtu.be/de1J0zSc_Q8?t=205

NeilCooke

@cedric_eveleigh392 that’s just a 2 sketch projection which can be done in Onshape. 

Cedric_Eveleigh

NeilCooke said:

@cedric_eveleigh392 that’s just a 2 sketch projection which can be done in Onshape. 

Using the "Projected curve" feature?