Animalector's Ebike Builds

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Re: Animalector's Ebike Builds

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


and
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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.
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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?
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ImageImageImage
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Re: Animalector's Ebike Builds

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

Yeah sure. Go ahead. :mrgreen:
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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
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Not so happy (Custom).jpg
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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
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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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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...

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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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Re: Animalector's Ebike Builds

Postby Animalector » Sun Apr 16, 2017 5:04 am

After a couple of weeks bombing down the kuranda range with no motor loving the ground clearance ive finally put the motor back on..m along with the bash plate..
2017-04-16 19.51.18.jpg

2017-04-16 19.50.01.jpg


Also.. Atherton tracks..

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Re: Animalector's Ebike Builds

Postby Animalector » Mon May 01, 2017 4:07 am

some tab welding
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Re: Animalector's Ebike Builds

Postby Animalector » Mon May 01, 2017 10:00 pm

I used 0.2mm Nickel plate, with settings of 1ms, 1ms, 20ms and an old truck battery. Everything worked well. the only "blow outs" were where i missed the button on the +ve of the cell, or if I wasn't holding the probes flat against the nickel with Sufficient pressure. Otherwise it went very well.

Slotting was more effort than it was worth. The sheet welded just fine without the slots.

I was hitting 3 welds per cell, with a 4th weld at 90degrees just for good measure.

Kapton tape across all edges before applying the balance wires, then balance wires soldered into the space on the nickel plate between the groups of cells, then Kapton tape everywhere after.

Andy
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Re: Animalector's Ebike Builds

Postby izeman » Tue May 02, 2017 1:55 am

nice looking battery :)
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Re: Animalector's Ebike Builds

Postby Lurkin » Tue May 02, 2017 4:49 pm

Nice. What BMS did you go with?
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Re: Animalector's Ebike Builds

Postby Animalector » Tue May 02, 2017 9:58 pm

don't really know about the BMS.. it was whatever came with the pack originally.. It's for a mate's bike (the blue norco shore I posted photos of a little while back.) https://endless-sphere.com/forums/viewtopic.php?f=6&t=38846&start=300#p1202414

I think the BMS is something relatively basic, but we know the Low voltage cutoff was working very well.. The original pack had some welds come loose resulting in only around half capacity before BMS shutdown. Should be all good now, but I guess we will see how it performs on Thursday when we take it out for it's first ride.

Andy
Last edited by Animalector on Tue May 02, 2017 10:03 pm, edited 1 time in total. View post history.
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Re: Animalector's Ebike Builds

Postby Animalector » Wed May 03, 2017 6:15 am

BMS is very much like this one..Look at this on eBay http://www.ebay.com.au/itm/142186989135
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Re: Animalector's Ebike Builds

Postby Animalector » Thu May 04, 2017 9:44 pm

Chris's bike looking pretty damn awesome after some cutting welding and fabrication. Excellent work...
DSC_0098-1600x900.JPG
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Re: Animalector's Ebike Builds

Postby izeman » Fri May 05, 2017 5:50 am

NICE!!!
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