Reply To: jonh's 25×30 build

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I resolved the loose grub screw problem per the photo: my local Ace hardware had M3x6 button head screws; these had 2mm hex heads that were much easier to torque down. (M3x5 would be better, if you can find them.) Home Depot had socket head screws, but the heads were too big and would interfere with the motor mount.