Gearbox output shaft extension https://www.tinkercad.com/things/1iCQxWM2X82/edit?returnTo=%2Fdashboard&sharecode=SmVBn-kRE_BZYixkl_zl_F13eUIVaRg5aNi4_Hj3nXI Chloe Tinkercad design v1 v2
