I'm trying to mount a block of plastic onto the motor's shaft so I can attach a disk onto the mount. My motor has a D shaped shaft. What's the best way to achieve this?
I only ways I can think of is drilling a hole into the shaft and tapping into it with a screw, but the shaft is only a 3-4mm so it could be risky.
Or drill larger hole into the block, stick the motor shaft in and fill it with some filler? What's a good adhesive/filler for metal bonding?