About this 3D model

This is a cover for Canon EOS DSLR cameras. I made it from the Macro Extension Tube made by Martinmunk. http://www.thingiverse.com/thing:74217 I used Tinkercad to modify the Macro Extension Tube. https://tinkercad.com/things/bsngGHKOFum-canon-t3i-cover-from-httpwwwthingiversecomthing74217