EBMX

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eBMX
Bmx-newseat.jpg
Participants Buzz
Skills
Status Done
Niche Mechanics
Purpose Fun
Tool No
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eBMX

Bmx-newseat.jpg {{#if:No | [[Tool Owner::User:buZz | }} {{#if:No | [[Tool Cost::{{{Cost}}} | }}

What

A study and try-out of the current available techniques for propelling bikes with electricity. This has nothing to do with my lack of car :)

Basically I want to convert a normal bike to a nice electric one, and aim to find the cheapest/easiest/most current way to do so.

Features that would be nais :

  • Regenerative braking
  • Cruise Control
  • Rear wheel propulsion, bike trailer ready
  • Gears :)

Not much in the case of innovation, but a fun project and something not many people consider to be an option.

Buildlog

I proclaim this project done \o Ended up using a couple RC batteries in series, so i could keep using my old charger etc.

--buZz (talk) 20:21, 20 June 2017 (CEST)


Picked up the bike from bikeshop today \o They put the motor in wrong, but easy fix ;)

--buZz (talk) 17:03, 8 June 2017 (CEST)


Ordered a backlight for on the sissybar :)

--buZz (talk) 00:06, 6 June 2017 (CEST)


Started documenting sideproject DIY_Spot_Welder

--buZz (talk) 13:04, 5 June 2017 (CEST)


Woop, motorkit and batteries arrived \o/.
Dropped of bicycle & motor at local bikeshop for them to respoke the wheel with motor inside. Hopefully done in ~2 weeks.

Meanwhile i'll wait for BMS before starting to make a batterypack.

--buZz (talk) 17:37, 30 May 2017 (CEST)


Just mathed max speed (at 300 RPM as stated on aliexpress and with 0 friction or losses (unlikely))

(300*(508*3.1415)/1000/1000)*60
300 rpm
508mm wheel diameter (20*25.4)

--buZz (talk) 10:29, 30 May 2017 (CEST)


Charger ordered \o/

--buZz (talk) 01:47, 28 May 2017 (CEST)


Annnd ordered a pile of batteries:

  • 20x Samsung INR18650-35E 3450mAh - 10A
  • 2x Samsung INR18650-29E 2900mAh - 8.25A (for welding practise)
  • 2 meter of nickel strip 10mm*0.15mm

--buZz (talk) 00:22, 28 May 2017 (CEST)


Ordered a 10S BMS to make my own battery.

--buZz (talk) 13:08, 26 May 2017 (CEST)


Added a bananasaddle \o/

--buZz (talk) 13:39, 25 May 2017 (CEST)


Ordered a conversion kit, almost the cheapest i could find :)

--buZz (talk) 02:02, 19 May 2017 (CEST)


Scored a free BMX to start, and looking at (cheap chinese) parts to order.

--buZz (talk) 19:58, 15 May 2017 (CEST)

 
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