2014-01-15

e-bike: chopping the frame

Started working on my e-bike's frame, chopping off a few pieces that I didn't like the looks of.


Before going at it with a hacksaw and Ryobi, I marked where I was considering taking pieces off.



Here is it, just after the initial chopping.



And after the rough cleanup.  I also chopped some pieces off of the swing arm.  I might remove a few more pieces, but I have other fish to fry first; I'd like to get the steering sorted and I've also started work converting the in-hub motor with cast on rim into an in-hub motor with spokes connecting it to a larger diameter rim.

Then comes the seat, electronics, battery, etc.  A lot to get through before Spring.

11 comments:

  1. I have a question maybe you can answer since you seem to have pretty good knowledge of the memo bike.... i've been having a weird problem with mine...when its cold or raining my lights stop functioning? any idea what it could be?
    thanks,
    Mike

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    Replies
    1. Hi Mike. :)

      It sounds like you may be getting water and/or condensation in a connector or switch or perhaps the bulb socket itself.

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  2. Hi Andrew. I'm from Montreal, and I just bought a scooter like yours last week. I've just discovered this blog, and I'm curious how your ebike improvements go!
    Thank you!

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    Replies
    1. Hi Pat! I hope you're enjoying your new bike. :D Sorry there's not been any activity on my bike project lately.. been busy with my motorcycle, 3d printer, writing, my dog, work, etc., etc. I will be getting back to the ebike eventually.

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  3. I am having a problem with my battery. I have an email the bike like you. I noticed a few days ago that my battery was cutting out on me. So I opened it up and found that the red wire was disconnected from the fuse box where the fuse is contained....

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  4. ... So I soldered the wire back to where it was. Everything was fine for two days, on the Thursday the bike stopped working again. I open the battery up again and found that the Redwire had melted. What could have happened?

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  5. Also I forgot to mention after I soldered the red wire I decided to tape it down with electrical tape on top of one of the batteries inside the container. I think this may have played a role in the melting that had happened

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    Replies
    1. Hi Michael. :) If your wiring is melting like that it could be a sign that your wiring harness has a short somewhere and is allowing too much current to flow, heating things up. Check around the wiring to see if there's anywhere that it could have worn through the insulation, perhaps shorting on the frame of the bike.

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  6. Andrew I too am from Montreal I did bought a used Nicom e-scooter (manufacturer) under another name, I got it for less than you and really took a chance at it actually originally it was for spare parts for another one that is ~ 10 yrs old.
    It has to be more recent since it got an LCD screen odometer almost new tires brakes etc,,,but rust her and there and I was told the other type of packs were tried and it died..from your intensive search and to my pleasure I got the elec. dia, YIPPIE! so I open the back plate of controller to find out that a small M7 diode was in an upright position so I replace it in position and tack weld it..voila everything was working! I was all excited, wanting to do a better weld I start messing around..using a too much larger pencil I probably bridge small resistor..so I bought a generic 30A controller burn out the throotle to finally order the genuine parts both controller and throotle twist grip.
    I cannot remember the original connectors configuration although I know what are the motor 3 leads B+ B- hall sensor and light power supply where does the 2 wire black and green (in a 3 pin female molex) go? does the white and white + white blue line needs to be connected together for the controller to work?
    I feel bad here since I was able to get it running with these new parts then I disconnect the black lead of the battery from the controller and wanting to check the lights I re plug it to get ziltch nothing anymore...;-( !
    Looks that I have no power whatsoever nothing although it just work.
    Can you when you'll have a chance post some pictures of your original controller it's connectors and comments about this particular controller? are using still the original with your new pack?
    Keep up with this great hobby, as for me I'll run some more test tomorow as it can be a faulty cheap switch that I install or not installing the right throotle someone told me there is 2 models of it but no one knows what's inside a pot (5K or 10K 20K) with diodes or no?
    Wher can I get a M7 diode to fix the original controller to try it again now that I have clean the board and weld back all the connectors I had borrow to try to install a 30A generic that make me bleed but running the motor in reverse..
    Waiting for some comments and pictures when you'll have time.
    Roger B.
    St-Laurent P. Qc,

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  7. plz excuse typo errors on the above comments, English is not my first language,

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