O-ring Groove Custom Feature

TimRice

With the recent release of O-rings in standard content I created a custom feature for adding the o-ring grooves to your parts! Add a radial or axial groove and the feature will autosize to match the geometry. A mate connector is also added for easy mating in assemblies.



Add it here: https://cad.onshape.com/documents/7cc7800afe750c5b8148b440/v/ae1c45a09a12e8ffab98ad28/e/a9662007830c2b8be9ec314b

michael_bromley

Awesome FS, this will save a lot of time!  Any reason why the dash numbers are limited?  For example, I just tried testing out an application that needs a 053 o-ring, but the 000 series stops at 028.

TimRice

Glad you like it! Unfortunately the standards used (SAE AS4716C and SAE AS6235A) do not specify the gland dimensions for o-ring sizes between 028 and 108. Do you have another source I can take a look at?

michael_bromley

We typically go by this design guide:

https://www.applerubber.com/src/pdf/seal-design-guide.pdf

michael_bromley

Another option would be to make more of a manual input where the user would specify the ID, OD, and depth.  Essentially like the hole feature you can either use a standard or just make a fully custom hole.

michael3424

The Parker O-ring guide is another good resource:

https://www.parker.com/Literature/O-Ring%20Division%20Literature/ORD%205700.pdf

TimRice

Yes, thank you both. I will add a manual slot input in a future update  

steve_shubin

@TimRice

The center of the circles are coincident with the origin. And the mate connector is placed at the center of the cylinder. Yet I get this message that the mate connector does not fall on the central axis of the cylinder

What am I doing wrong ?

https://cad.onshape.com/documents/e462cedb36a36ad82966c34f/w/c730f2e9b8a481b6d46991d4/e/29fcfe7e47c59da9a2624bf1

TimRice

@steve_shubin
Fixed! Please update your linked version of the featurescript and it will work as expected. Thank you for bringing this to my attention!

steve_shubin

@TimRice

Thanks for taking care of this, and for the prompt response.
I really like your FeatureScript !

TimRice

V1.1.3 Now with tables!! Add to your toolbar:
https://cad.onshape.com/documents/7cc7800afe750c5b8148b440/v/c58e67397ca93b257ec82b12/e/5cb14a47504b827b1f1b26c0