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Mickus
Newbie
Joined: 14/11/2011
Location: AustraliaPosts: 17 |
| Posted: 04:46am 03 Oct 2013 |
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What parts do people use to connect to a shaft like this.
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brucedownunder2
Guru
Joined: 14/09/2005
Location: AustraliaPosts: 1548 |
| Posted: 10:20am 03 Oct 2013 |
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Hi there,
It's such a little shaft ,I'd use a brass electrical wire connector . Take the plastic shroud off it and you'll find the earth type ones have two "grub" screws that should secure well, if you are worried , a dob of super glue or "Locktite" on the grub screw threads will stop it from becoming loose.
3 mm is a little over a bicycle spoke ,so it's very small and should not have too much mechanical stress on it ?
Bruce.
Bushboy |
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Mickus
Newbie
Joined: 14/11/2011
Location: AustraliaPosts: 17 |
| Posted: 12:47pm 03 Oct 2013 |
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Thanks, I will head into Jaycar. Would the cut out side and grub screws going into it cause the shaft and hub to be unbalanced?
Or as it is so small, it cant produce enough stress. |
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M Del
Senior Member
Joined: 09/04/2012
Location: AustraliaPosts: 155 |
| Posted: 09:26pm 03 Oct 2013 |
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Hi
It may be slightly unbalanced but any problem would depend on the length of the shaft and the speed at which it is rotated.
I have used similar in items built years ago, meccano for the kids and scale model demo gear for winches and cranes and used one (6mm) recently to modify a car heater fan motor connection.
The connectors also make a dandy bbq gas control knob when the original knob brakes, a lot easier than a pair of pliers.
Mark
Mark |
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Mickus
Newbie
Joined: 14/11/2011
Location: AustraliaPosts: 17 |
| Posted: 04:16am 04 Oct 2013 |
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Seeing as the connector is brass, I could try to solder on a small counter weight. But I bet I will continually chase the balance and end up with a 1kg connector.
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M Del
Senior Member
Joined: 09/04/2012
Location: AustraliaPosts: 155 |
| Posted: 03:06pm 04 Oct 2013 |
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Unless you are fitting it to the end of a 12 inch shaft or spinning it at high revs there should not be a problem.
What are you using for?
Mark |
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Bryan1
Guru
Joined: 22/02/2006
Location: AustraliaPosts: 1344 |
| Posted: 04:12pm 04 Oct 2013 |
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What I've done in the past with a flat on a shaft is cut down a shaft the same internal diameter to form a 1/2 round key then once assembled drill 2 holes then pin the key. This way the connector is in full balance and I haven't had one brake on me yet.
Cheers Bryan |
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Downwind
Guru
Joined: 09/09/2009
Location: AustraliaPosts: 2333 |
| Posted: 06:19pm 04 Oct 2013 |
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A section of tube off a car antenna to fit snuggly and a dob of super glue into the D. (and i dont mean for you to go shopping in the pub car park for an antenna)
Or look into remote control cars, the electric ones use motors with 3mm shafts by memory, and high torque motors, as some do close to 100kph.
Pete.
Sometimes it just works |
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Mickus
Newbie
Joined: 14/11/2011
Location: AustraliaPosts: 17 |
| Posted: 11:11pm 04 Oct 2013 |
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It's a small wind mill to run a single LED light, trying to get the kids interested
I am also using similar small motor to fan a heat sink on a peltier generator im
Playing around with. Both builds are very small scale due to limited tooling
Machines and no backyard mechanics nearby in Brissy that I can befriend haha |
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