double helix spring parametric —
Founded double helix spring parametric models & stl files for printing
Hiro
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EL3D
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ConceivablyEngineering
benwiegand
toddsampson
AbeFM
EG3Dprinting
Erw
Aaron F
Arteron
R4iNER
Sp4s12
Control3D
Point3333
stixpjr
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