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Step 13Mounting the motor & the other center support
I found that I could bolt the part of the motor housing that previously held the electrical connector directly to the back panel. This didn't look quite strong enough, so I also used one of the 'proper' motor mounts, bolted to some aluminium channelling, which in turn bolted to the back panel.
Using a tailors tape measure or a piece of string the belt length can be calculated. For this application a poly-v belt is best. This is because only the relatively flat poly-v belts can handle the sharp radius of the small motor drive shaft. Standard v-belts would need bigger pulleys. The chances of scavenging a correctly sized belt seemed minimal so I ordered mine over the phone, it was ý8.
Apparently the belt tension is about right when you can just twist the belt by 90degrees but not much further without using force. Super subjective I know, so it is a good idea to design some adjustment into the motor mount.
Using a tailors tape measure or a piece of string the belt length can be calculated. For this application a poly-v belt is best. This is because only the relatively flat poly-v belts can handle the sharp radius of the small motor drive shaft. Standard v-belts would need bigger pulleys. The chances of scavenging a correctly sized belt seemed minimal so I ordered mine over the phone, it was ý8.
Apparently the belt tension is about right when you can just twist the belt by 90degrees but not much further without using force. Super subjective I know, so it is a good idea to design some adjustment into the motor mount.
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