Error message

  • Notice: Undefined index: granularity in date_granularity() (line 347 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Notice: Undefined index: tz_handling in date_formatter_process() (line 231 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Notice: Undefined index: tz_handling in date_formatter_process() (line 233 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Notice: Undefined index: todate in date_process_values() (line 358 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Notice: Undefined index: granularity in date_formatter_process() (line 250 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Warning: date_format(): The DateTime object has not been correctly initialized by its constructor in date_formatter_process() (line 254 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Warning: date_timezone_set(): The DateTime object has not been correctly initialized by its constructor in date_formatter_process() (line 256 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Warning: date_format(): The DateTime object has not been correctly initialized by its constructor in date_formatter_process() (line 258 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Warning: date_offset_get(): The DateTime object has not been correctly initialized by its constructor in date_formatter_process() (line 260 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.module).
  • Warning: DateTime::format(): The DateTime object has not been correctly initialized by its constructor in DateObject->format() (line 392 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_api/date_api.module).
  • Notice: Undefined index: granularity in date_all_day_field() (line 184 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_all_day/date_all_day.module).
  • Notice: Undefined index: granularity in theme_date_all_day() (line 136 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_all_day/date_all_day.module).
  • Notice: Undefined index: granularity in theme_date_all_day() (line 136 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_all_day/date_all_day.module).
  • Notice: Undefined index: granularity in theme_date_display_combination() (line 79 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.theme).
  • Warning: array_intersect(): Argument #2 is not an array in date_granularity_sorted() (line 1554 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_api/date_api.module).
  • Warning: array_pop() expects parameter 1 to be array, null given in date_granularity_precision() (line 1601 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date_api/date_api.module).
  • Notice: Undefined index: granularity in theme_date_display_combination() (line 152 of /home/robogeek1/visforvoltage.org/sites/all/modules/date/date.theme).
  • Warning: number_format() expects parameter 1 to be double, string given in number_field_formatter_view() (line 305 of /home/robogeek1/visforvoltage.org/modules/field/modules/number/number.module).

Mad Magudaman's Trouble Maker

Number of wheels: 
2
Heater: 
No

So my project has finally come to an end and I can finally reap the benefits of this great machine that has been constructed. To give you an overview of how I got to this point I will start for the beginning:

After breaking my second Currie Technology scooter I researched options to use my four dewalt batteries that I had already been using for some time. With much research and time I knew I wanted to go brushless and go toward a conversion for a bike. I researched and in fact really liked Cyclone USA's chain driven system but would not work with my 33v dewalt battery packs. With that option gone that left me with Crystalyte's motors and finally the option to go HIGH VOLTAGE. I ordered a 409 motor based on the power curves of http://www.ebike.ca/simulator/ and to match a Crystalyte 20 amp 36v to 72v controller. Upon receiving all my parts I looked for a good steel frame to mount everything on. A guy at a local bike shop ended up selling me an 1980 something Marin mountain bike frame with a fork.

In my first full day I wet sanded the frame, primed, and then painted. I tried to use an automotive clear coat but ended up with a very dull and disappointing finish, but looks aren't everything, especially if you are getting passed by a bike. The next day I proceed to put all the bike components on the frame. This took an entire day due to rigging and bearing rebuild at the goose neck and cassette. My next day was dedicated to putting on all the electronics and making it look pretty. I was also able to finally get my Drain Brain Mounted on the handle bars as my fuel gauge. All and all I spent close to 35 hours working on this thing. Below are some large pics of the result. I'll try and get a video posted soon too.

I tried to keep the wiring as slick as possible:

Here you can sort of see my controller 36-72v 20 amp:

Close up of the motor with my pipe strap keeping the whole thing from rotating:

My battery bag with 4 dewalts and my custom wiring harness to make them 2s and 2p (pack level; cell level is 20s x 2p). Also I had to use a different wire color to show high voltage:

Lastly my dash board with my drain brain and a cyclocomputer:

Charger: 
Dewalt Stock A123 Charger X2, Hyperion 1210i/A
Location: 
Concord, CA
Batteries: 
Dewalt 33v A123 pack X4 2 series 2 parallel 4 ah at 66v
Conversion time and cost: 
Frame prep(paint, components, Cleaning) = 18 hrs ; Electrical portion (wiring, installing, ect.) = 16 hrs COST = ~1000
Drivetrain: 
Hub Motor, Direct Drive
Controller: 
Crystalyte Instant Start 20 amp 36-72v
Method for 12v system: 
DC-DC Converter
Miles as an EV: 
8
Motor: 
Seating capacity: 
1
Watt-hours per mile: 
33 WH/Mi
Top speed: 
30 MPH
Typical range: 
6
Vehicle Type: 
Vehicle maker: 
System Voltage: 


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