Prusa i3 MK2 Simplify3D Bed Model STL (OpenSCAD)

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I have some minor damage on my bed / PEI sheet which I want to avoid. I've been looking into creating my own custom bed model for Simplify3D so I can easily avoid problem areas when laying out pieces to be printed. I stumbled across ayourk's post on the Prusa forums and have modified his code. Ayourk's post can be found at: https://shop.prusa3d.com/forum/software-archive--f87/mk2-silk-screen-for-simplify3d-t2101.html Changes: - Changed the drill holes to look more like they do on the bed with an outer ring. - Added a fine grid which shows every 10mm. - Added a function to import a DXF file to add a graphic of PEI Damage for areas you may want to avoid. (I've included samples of mine for reference) - Changed the zheight from 2 to 0.1 ##### To install this in simplify 3D: 1. Export your printer profile from within Simplify3D. **File > Export FFF Profile** 2. Edit the file in a text editor. Change **overridePrinterModels** to **1** and **printerModelsOverride** to the name of the stl file without any path. 3. Go to ~/Library/Application Support/Simplify3D/S3D-Software/ and copy the STL of the bed there. 4. Open up Simplify3D and use **File > Import FFF Profile** 5. In **Simplify3D > Preferences on the Visualisation Tab, untick "Include Build Table In Virtual Environment** 6. Set the profile to the new one and the bed will show. Further information : https://forum.simplify3d.com/viewtopic.php?f=8&t=5403 ##### To draw 'PEI damage' on to the model: 1. Take a photo from directly above your bed as square on as possible. 2. Open Autodesk Fusion360. **Insert > Insert Mesh** - choose the bed STL 3. **Insert > Attach Canvas > ** *pick the photo you took* 4. You can right click on the photo in the sidebar and use **> Calibrate** to easily make it the correct size. 5. Create a sketch and use the line tool to draw around the problem areas on the bed. Make sure the lines form a closed shape. 6. Once done, close the sketch. 7. Right click on the sketch **"Save as DXF..."** 8. change the filename in the .scad source file. 9. Un-comment the '//pei_damage;' line about 25 lines below that. 10. In openscad, press F5 to preview it. 11. Then press F6 to render the file. You can then use **File > Export > Export as STL** and use this for your printer bed model.