A 4 hour project whose goal it was to print a replacement part for my broken bicycle light mount.<br><br>After the mount of my bicycle broke I designed a replacement part on <a target="_blank" rel="noopener noreferrer" href="http://tinkercad.com">tinkercad.com</a> and after a few prototype successfully printed a working replacement part. The whole process took less than 4 hours. Most of this time was spent waiting for the part to print.