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Nick
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Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW


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Another problem with the e-bike controller is that it is not compatible with an R/C radio signal.
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Post Sun Jul 10, 2016 11:44 pm 
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royzo



Joined: 30 Jun 2016
Posts: 17


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For calculating torque-amp hr for e-bike motors what value should I use it for back emf , is it -5 from source volatage.

Post Mon Jul 11, 2016 12:53 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW


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I am not sure what value you are trying to calculate. Back EMF depends on the motor's inductance and will be different for every motor. Generally, the back EMF will be higher than the supply voltage.
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Post Mon Jul 11, 2016 11:50 pm 
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Geoff4260



Joined: 28 Aug 2016
Posts: 5
Location: Brisbane, QLD


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Gears and Drivetrains

Hi Guys Smile

Just wondering if you know of a good place to buy Gears and drivetrains?
are there any physical shops in Brisbane?

- Geoff

Post Sun Aug 28, 2016 7:04 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW


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In QLD at least:

TEA Transmissions https://www.tea.net.au/Home.aspx They can be a bit pricey as they generally stock high quality industrial gear. They have a good web site and reply to emails promptly.

Smallparts http://www.smallparts.com.au/ . Possibly the world's worst web site, but they have tons of useful bot bits and usually at OK prices. They have a shop in Capalaba West but don't have much of their stock on display there.

I use both these company's on-line stores and shipping should be cheap for you.
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Post Sun Aug 28, 2016 8:00 pm 
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Geoff4260



Joined: 28 Aug 2016
Posts: 5
Location: Brisbane, QLD


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Thanks Nick.
Just what I was looking for Smile
Much appreciated!!!

Post Mon Aug 29, 2016 12:06 pm 
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