# Pre Form Crashes when importing files **URL:** \ **Category:** Support & Troubleshooting\ **Created:** [December 31, 2014, 10:20pm UTC](https://forum.formlabs.com/t/pre-form-crashes-when-importing-files/3109 "2014-12-31T22:20:11Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Kris\_Johnson](https://avatars.discourse-cdn.com/v4/letter/k/eb8c5e/32.png) [@Kris\_Johnson](https://forum.formlabs.com/u/Kris_Johnson)\ **Post date:** [December 31, 2014, 10:20pm UTC](https://forum.formlabs.com/t/pre-form-crashes-when-importing-files/3109/1 "2014-12-31T22:20:11Z")
I use Sketch Up to design in. I can export as an OBJ file and it can SOMETIMES open in Preform without crashing and 90% of the time open in Preform after Ive re-saved the file as an OBJ or and STL in Meshlab. Now as long as I don’t manually place the object where I want on the form plate and use only default angles and support struts it dons crash. If I do anything custom or manual- it crashed every time. Does anyone else use Sketchup and have a good work flow of file types to use in order to utilize Preform to it’s intended capacity? Curious and frustrated. ---
**Author:** ![David\_Warren](https://avatars.discourse-cdn.com/v4/letter/d/f04885/32.png) [@David\_Warren](https://forum.formlabs.com/u/David_Warren)\ **Post date:** [March 9, 2015, 9:54pm UTC](https://forum.formlabs.com/t/pre-form-crashes-when-importing-files/3109/2 "2015-03-09T21:54:51Z")
I am having the same problem as you; software crashes. I open an .STL file in the PreForm software (v 1.8.2). I create .STL files from SolidWorks. At first, I do not see my model when I attempt to open it in the PreForm software. The model shows up after I click on a few of the icons on the left-hand side of the screen…size or orientation or generate supports. Then I can change the orientation of my part and add supports. But if I attempt to move my part on the grid, the software crashes every time. “PreForm.exe has stopped working”.