[ISSUE] Exporting STL with modified configuration

remi_beges

I'm trying to export STL of a part with modified values for a few configuration variables, using Rest API with a python script.

My code builds the following URL to request modified STL:

https://cad.onshape.com/api/partstudios/d/78a4512a42e4ca0851f608fd/v/fccdb6ecd0421f4c6671b44f/e/f8106d3c4c49847c17cca944/stl?configuration=DiametrePlateau=1200;Pieds_LargeurEncoches=60

The URL looks correct, I've generated the query params using the encoding endpoint:

https://cad.onshape.com/api/elements/d/78a4512a42e4ca0851f608fd/e/f8106d3c4c49847c17cca944/configurationencodings
->  {'encodedId': 'DiametrePlateau=1200;Pieds_LargeurEncoches=60', 'queryParam': 'configuration=DiametrePlateau%3D1200%3BPieds_LargeurEncoches%3D60'}

However, calling the STL endpoint returns 204 no content, and the returned text is empty.

Removing the query configuration and using default config returns 200 with the proper STL.

Why is OnShape API returning 204 instead of the correct STL ?

Ethan_K

This happens when the configuration you specified is not applicable. Specifically, most likely one of the values you specified is out of the range you specified within the PS/assembly. Make sure that the configuration is actually valid. One good way to verify this is to go to the document, change the configuration to what you want, and make sure that the PS regenerates successfully. Then, you can click 'share' and click 'Link Sharing' and the generated link will have the encoded configuration that you would need to use within the call for the stl. This is a good way to verify your config is valid. To show that you'll get a 204 if the config is out of spec, see this call returning a 204: 

https://cad.onshape.com/api/partstudios/d/f97b224eed8484e4e4df703d/v/46fa8915d81f1c859013e1fb/e/f8ea33aea606bb46c0db5862/stl?configuration=size%3D100000000%2Bmeter

And the same call, but with a valid size specified returning a 200 with the stl:

https://cad.onshape.com/api/partstudios/d/f97b224eed8484e4e4df703d/v/46fa8915d81f1c859013e1fb/e/f8ea33aea606bb46c0db5862/stl?configuration=size%3D0.01%2Bmeter

We're planning to make these errors more informative in the near future.

Hope that helps! 

remi_beges

Hi Ethan,

Thanks for the reply, it works now.

I was missing units and also separator between elements was '&' not ';'. Once that got fixed it worked properly.

Thanks