Thingiverse
Only simple crosscut, because the old Renkforce RF 100 3D printer does not made so much good resolution on the bottomline and crosscutted cube printing method may do it better resolution for simple devided cut. Original:https://www.thingiverse.com/thing:4441076 presented a thumb screw to replace the wing nut on the front-left corner of the BIBO bed. It is too wide for the other two positions.I have created a smaller version to fit the right-front corner and the back-center.A M3-.50 nut is required.
Direct link to the original creator's page
Click the "View on Thingiverse" button above to visit the original model page on Thingiverse. You can download the STL file directly from the creator's page for free.
This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
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Check the license (see original page) on the original Thingiverse page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.