Prusa i3 MK2 Simplify3D Bed Model STL (OpenSCAD) by MrPeter

Last crawled date: 3 years, 1 month ago

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:
Export your printer profile from within Simplify3D. File > Export FFF Profile
Edit the file in a text editor. Change overridePrinterModels to 1 and printerModelsOverride to the name of the stl file without any path.
Go to ~/Library/Application Support/Simplify3D/S3D-Software/ and copy the STL of the bed there.
Open up Simplify3D and use File > Import FFF Profile
In Simplify3D > Preferences on the Visualisation Tab, untick "Include Build Table In Virtual Environment
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:
Take a photo from directly above your bed as square on as possible.
Open Autodesk Fusion360. Insert > Insert Mesh - choose the bed STL
Insert > Attach Canvas > pick the photo you took
You can right click on the photo in the sidebar and use > Calibrate to easily make it the correct size.
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.
Once done, close the sketch.
Right click on the sketch "Save as DXF..."
change the filename in the .scad source file.
Un-comment the '//pei_damage;' line about 25 lines below that.
In openscad, press F5 to preview it.
Then press F6 to render the file. You can then use File > Export > Export as STL and use this for your printer bed model.