grabcad
This is Spring, Which is Working, as this can be compress and also extends..
Tutorial for making this spring http://grabcad.com/questions/tutorial-how-to-make-a-working-spring
Tutorial for animate the Spring http://grabcad.com/questions/tutorial-how-to-animate-a-working-spring
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Direct link to the original creator's page
Click the "View on grabcad" button above to visit the original model page on grabcad. You can download the STL file directly from the creator's page for free.
This STL file 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.
Yes, this model is available as a free download on grabcad. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original grabcad page to see if modifications are permitted by the creator.