H3 gear set with stock ratio (8/49)
by Gijs, published
Although I really like the H3 design, I had issues with the gears. They made quite a bit of noise during reverse moves, probably because they don't fit perfectly. Also the gears are a different ratio than the stock gears (9/47). So I replaced them with an involute gearset that has the same ratio as stock (8/49) which has the benefit that you can keep the e steps the same. Also this means the motor will keep the original torque.
for a video see http://www.youtube.com/watch?v=XvUsqFo-yYY