4 layers34 × 45.9 mmHourglass revageschmit/hourglassHack Club Onboard submission project97 parts4Apache-2.0
2 layers65 × 40 mmHourglass prototypegeschmit/hourglassHack Club Onboard submission project30 parts4Apache-2.0
4 layers34 × 45.9 mmHourglass revbgeschmit/hourglassHack Club Onboard submission project88 parts4Apache-2.0