# Truss OBJ files to 3D Print - CVEN1317

<details id="bkmrk-obj-into-onshape-sig"><summary>OBJ into OnShape and Export STL</summary>

##### **Sign into OnShape then press Create -&gt; Import files**  


[![{AC7881DD-2697-44EE-9762-A6FF79E8FD99}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/28Gk7UyafVEqTbJF-ac7881dd-2697-44ee-9762-a6ff79e8fd99.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/28Gk7UyafVEqTbJF-ac7881dd-2697-44ee-9762-a6ff79e8fd99.png)

##### **You can import the files all at once (make sure to switch the units to<span style="color: rgb(224, 62, 45);"> Millimeter</span>)**

[![{447D8774-F260-473E-A121-DECC8FAE4A66}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/AaW4dQBfKfeWYvlK-447d8774-f260-473e-a121-decc8fae4a66.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/AaW4dQBfKfeWYvlK-447d8774-f260-473e-a121-decc8fae4a66.png)

##### **They will show up in your list:**

[![{8507D5FA-1D82-4E41-974A-78B40701696A}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/Ypg7czDjfKdaaI9S-8507d5fa-1d82-4e41-974a-78b40701696a.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/Ypg7czDjfKdaaI9S-8507d5fa-1d82-4e41-974a-78b40701696a.png)

**When you click on one you will see a larger version in the workspace:**

[![{645DA452-710D-4836-93F0-E261F9D5335A}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/tLSPRt3jwGEaOhfd-645da452-710d-4836-93f0-e261f9d5335a.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/tLSPRt3jwGEaOhfd-645da452-710d-4836-93f0-e261f9d5335a.png)

##### **In the Parts list, highlight all the parts you want to export and single right click to get to the options, click Export:**

[![{E7829216-E111-4715-81BC-B687EEABC4A5}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/7iRR6iBtgma45Eu7-e7829216-e111-4715-81bc-b687eeabc4a5.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/7iRR6iBtgma45Eu7-e7829216-e111-4715-81bc-b687eeabc4a5.png)

##### **Make sure Units are <span style="color: rgb(224, 62, 45);">Millimeters</span> and Format is <span style="color: rgb(224, 62, 45);">STL</span>:**

[![{5E345097-750C-4F47-B3BB-FA8089704718}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/0oPkc7xYOllehoOL-5e345097-750c-4f47-b3bb-fa8089704718.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/0oPkc7xYOllehoOL-5e345097-750c-4f47-b3bb-fa8089704718.png)

</details><details id="bkmrk-3d-printing-your-stl"><summary>3D Printing your STL file</summary>

##### Take the 3D Printer training

##### **Upload the STLs you just created using OnShape into 3DPrinterOS**

[![{4BF6058C-3F48-4753-B054-10D8EFEAACD8}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/xYz9nmdJHMsqXNPa-4bf6058c-3f48-4753-b054-10d8efeaacd8.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/xYz9nmdJHMsqXNPa-4bf6058c-3f48-4753-b054-10d8efeaacd8.png)

##### **Press the Layout Button on the Truss file**  


[![{6D23E125-A33E-49E1-8A38-559CE7640E53}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/yitFidAK4oSN8c3D-6d23e125-a33e-49e1-8a38-559ce7640e53.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/yitFidAK4oSN8c3D-6d23e125-a33e-49e1-8a38-559ce7640e53.png)

##### **You will want to press "On Bed" and "Center" and I recommend Rotating in the Y-direction 45 deg (in some cases this may not be possible and in some cases, you may need to export the STLs as separate files so you can re-arrange them on the bed).**

[![{D2ABF8F7-0E13-4913-9885-330C7FC26545}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/OBjKfGta19BS7PZ0-d2abf8f7-0e13-4913-9885-330c7fc26545.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/OBjKfGta19BS7PZ0-d2abf8f7-0e13-4913-9885-330c7fc26545.png)

##### **The standard PLA slicer settings are fine so you can just slice it for PLA (no brim, no support)**

[![{C157BF19-7313-4D09-9365-8E742AD03B82}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/JWZtfVZwZ4FuVXm6-c157bf19-7313-4d09-9365-8e742ad03b82.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/JWZtfVZwZ4FuVXm6-c157bf19-7313-4d09-9365-8e742ad03b82.png)

##### **Do the same for the Abutments**

##### **For the Crossmembers pleas add a Brim (outer) and Snug Support.**

[![{A897BED8-B87E-438B-903A-697A791778BC}.png](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/scaled-1680-/XOYYOXsaZONLDA42-a897bed8-b87e-438b-903a-697a791778bc.png)](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/XOYYOXsaZONLDA42-a897bed8-b87e-438b-903a-697a791778bc.png)

</details>