Following the CNC modification of my Bf20...I thought it was time to use with BobCADV25 fourth axis in order to proceed with the construction of my locomotive. Starting from an idea view on youtube this is my creation. I used a harmonic gearbox with reduction ratio 1:100. The bearing is what was in the cutter and replaced it long ago. The picture are showing the major components...I'll have to do some tests to choose the right motor.
View attachment Asse-A-Last.pdf
View attachment Asse-A-Last.pdf