Replacement brushless motor shaft material

[Danjr1]

That's the one. To get the pinion to fit, you need to grind a flat on the motor shaft and to mount you need to drill some new holes in the motor mount part. However these holes need to be very exact so I've had some replacements with the required holes 3d printed as my drilling was never that perfect!

Using the 28-26 NTM motors from hobbyking, don't be expecting mega speeds using the argos gearbox. On 4s, its slightly slower than the stock brushed motors but i found it easier to drive with plenty of torque to push things around. Main reason I went for it though was the space and weight saving. For my next bot, I'm planning on using the same drive but will try slightly overvolting them in small increments to maintain the same speed as i'll be using smaller wheels.