Animalector's Ebike Builds

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Re: Animalector's Ebike Builds

Postby Animalector » Tue Nov 29, 2016 3:38 am


and
Animalector
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Re: Animalector's Ebike Builds

Postby Animalector » Tue Dec 06, 2016 5:08 pm

Last edited by Animalector on Tue Dec 06, 2016 5:09 pm, edited 1 time in total. View post history.
Animalector
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Re: Animalector's Ebike Builds

Postby Samd » Wed Dec 07, 2016 6:04 am

Thats rad! Just received a shipment of BBSHD drives and am about to finish a handful of Norco Alines, it will be interesting to see how the HD drive compares to the BBS02.

Love the battery box. I would love to put a link to this build on ES facebook. https://www.facebook.com/groups/endless.sphere/
Mind if I do?
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.
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Re: Animalector's Ebike Builds

Postby Animalector » Wed Dec 07, 2016 6:57 am

Yeah sure. Go ahead. :mrgreen:
Animalector
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Re: Animalector's Ebike Builds

Postby Animalector » Sat Dec 10, 2016 3:50 pm

So Today I had my first real ground clearance issue...
Happy (Custom).jpg
Happy (Custom).jpg (185.89 KiB) Viewed 260 times

Not so happy (Custom).jpg
Not so happy (Custom).jpg (175.95 KiB) Viewed 260 times


I am going to have to adjust my riding style, and land rear first, then front...

Anyways, this rotated the motor, and put a nice dent in the controller case, at first I thought everything was ok, then it started to whine. Then nothing. moving the bike backwards was very difficult, and I feared mechanical damage.

I pulled off the controller, disconnected the phase wires, and the motor was once again smooth to spin backwards (still firm, but no more than usual I think)

Conclusion - Blown controller ... more to come
Animalector
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Re: Animalector's Ebike Builds

Postby Animalector » Sat Dec 10, 2016 7:33 pm

Tada, Also from about 3 or 4 mins into the video, I test the Bafang motor with the lebowski controller...

Works well, I "might" consider hooking that up temporarily to ride around.

Also I need to locate a facing tool for the bottom bracket shell.

Andy

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Re: Animalector's Ebike Builds

Postby Animalector » Fri Dec 30, 2016 10:26 pm

i Will be buiding this in the new year so I dno't have issues with bottoming out again. 3mm aluminium plate bolted and strapped to the frame, should be strong enough. joins will be welded

:pancake: :D :) :o :shock: :? 8) :mrgreen:

Bashplate.png
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Re: Animalector's Ebike Builds

Postby Samd » Sat Dec 31, 2016 11:45 pm

Whoa. Cool!


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Re: Animalector's Ebike Builds

Postby Lurkin » Sun Jan 01, 2017 2:59 am

Sweet design, if executed well it will probably look factory! 8)

I was thinking along the same lines, but wanted to include dampening somewhere so when it takes a hit, rather than cracking or deforming the energy is dissipated in a controlled manner...
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Re: Animalector's Ebike Builds

Postby Samd » Sun Jan 01, 2017 4:14 pm

Thats a nice idea lurkin! Would be interesting to run solid side plates like iscg bash guards to provide the structure.


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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.
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Re: Animalector's Ebike Builds

Postby Animalector » Fri Feb 17, 2017 6:11 am

should be getting a mate to build up the bash plate soon, CAD work finished..

I might have mentioned above that I replaced the FETS on the BBS02 controller without success I thought I would post here.. the symptom was that it ran on throttle for around 5 seconds, then when I closed the throttle, the motor kept spinning. I pedalled backwards or something to get it to stop, and once it stopped it was dead, wouldn't spin again. this time when I pulled out the FETs I decided to measure them all, and discovered that it was only the high side that was cactus.

So this is the photo of the controller...

DSC_0003.JPG
DSC_0003.JPG (166.41 KiB) Viewed 53 times


Going from memory (it's been a week or so since I looked at it) there is a single FET on the 'high' side ( the one on the left), and parallel FETs on the low side. It's the high side FET that keeps blowing, which is on the left.

I thought perhaps there was a get resistor missing, and it was a floating gate, from the looks there are no components missing except the pads on the far right of the pic. . Can any guru's suggest why perhaps a high side FET might keep blowing? I should probably measure gate resistances. etc etc. maybe there's an issue with the driver and it's feeding 48V to the gate.. don't know..

Thanks
Andy
Last edited by Animalector on Fri Feb 17, 2017 6:12 am, edited 1 time in total. View post history.
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