Reply To: Titan Extruder › Forums › The Beast V1, V2 and Elevator 3D Printer Support › Titan Extruder › Reply To: Titan Extruder December 23, 2019 at 7:30 pm #1261 danParticipant Interesting issue. I’ve not seen this before. It should just fit over the shaft. I can’t see any reason why reaming the diameter wouldn’t work, as longs as it’s not too loose. Just a tip for the remainder, don’t overtighten the plastic case screws to prevent binding of the gears.