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  1. cybug

    My son's 24'' MTB conversion

    First off-road test ride OK !
  2. cybug

    My son's 24'' MTB conversion

    It's based on this one : http://www.avdweb.nl/tech-tips/spot-welder.html I've replaced the Inverse parallel SCRs (I burnt) with a SSR from ebay ( http://www.ebay.fr/itm/24V-380V-40A-250V-SSR-40-DA-Solid-State-Relay-Module-3-32V-DC-To-AC-/310733040176 ). I've modified the firmware to support...
  3. cybug

    My son's 24'' MTB conversion

    Yes of course ! Double checked ! It doesn't touch in any case, even with me (90Kg, twice the weight of my son) on it, pushing and braking as tough as I can. The fork got only about 50mm effective travel.
  4. cybug

    My son's 24'' MTB conversion

    More pics : https://plus.google.com/photos/+GuillaumedeBailliencourt/albums/6028938144325737009 Pics of the DIY Spot welder and battery pack welding : https://www.flickr.com/photos/95721093@N05/sets/72157643383857074/
  5. cybug

    Don't ride on tram lines !

    I fixed it :D New fork (RST Capa 20) New front wheel (laced with a hub that accepts disk) Disk brake on the front New v-brake on the back New saddle New controller (inside battery bottle) DC-DC converter (inside battery bottle) and front light All stikers removed And the most important ...
  6. cybug

    Empire MX-6 MB complete 3D printed frame

    http://www.3ders.org//articles/20140130-gear-up-with-the-world-first-3d-printed-mountain-bike.html
  7. cybug

    Don't ride on tram lines !

    20'', a BMX tire is enough ;) Thats what I got on my other folding bike an is OK (you feel the gap but the wheel doesn't get stuck).
  8. cybug

    Don't ride on tram lines !

    Yes it did.
  9. cybug

    Don't ride on tram lines !

    Very informative thread, a must-read for those who got tram lines or rail roads on the path. I hoppe you recover soon neptronix. Here's where sh*t happens : It was 6:00 AM, a bit dark, I was looking at the tram and didn't noticed the rail changing path. I know the place very well but it...
  10. cybug

    Don't ride on tram lines !

    To avoid traffic jam. Here in the "small" town of Montpellier tram lines are wide, there's not many trams, you can easily avoid trams when they're coming, the only trap are rails. One trap is enough to catch you ...
  11. cybug

    Don't ride on tram lines !

    Here's the bike the day before the crash :
  12. cybug

    Don't ride on tram lines !

    I used to ride on tram lines but with tires thicker than rail inner-width. This thiner one got stucked in a rail while a tram was coming. I was riding at 30km/h and jumped off the bike just in time. I'm lucky, I'am almost OK (some scratches, hurting shoulder). Lesson learnt : Don't ride on tram...
  13. cybug

    Water Bottle Battery .. bmsbattery.com

    The logic behind might be you can integrate this controller directly in the battery holder : http://www.bmsbattery.com/controller/578-36v-s06p-integrated-controller-for-new-bottle-case.html
  14. cybug

    Water Bottle Battery .. bmsbattery.com

    Got one of these batteries too. I shorted it while connecting (my mistake). So changed the fuse (20A) but the battery output was still to 2V instead of 42V. It seems the BMS has blown too :( So be gentle with this battery, the fuse can't do all, at least it was useless for me. Edit : I've...
  15. cybug

    Which Battery is this?

    Alternatively you can measure voltage output of the charger. If battery is LiPo should be near 30V for "24V" and near 42V for "36V".
  16. cybug

    Which Battery is this?

    You might have a controler in the black box below the battery (on the bike). 24V or 36V might be written on the controler. Just unscrew to open this box (under the bike I suspect). Controler is under this plate. Nominal voltage written on controler.
  17. cybug

    Show Us Your Homemade Battery Housing

    Merci ;) Each part is a couple of hours to print but once the 3D printer is fine tuned you can do it while sleeping (or working on something else on the e-bike). ABS is great for this kind of parts, you can drill, cut, sand, weld, paste it ...
  18. cybug

    Show Us Your Homemade Battery Housing

    Thanks, I need to weld corners but have no MIG. I tried low temperature aluminium welding but it simply doesn't work (with me). I'll try epoxy/metal mix paste ...
  19. cybug

    Show Us Your Homemade Battery Housing

    Here's a 3D printed housing for 12S2P RC Lipo : 2 middle parts of the 6 parts Fitting test of parts 1,2 and 3 Assembling parts 1,2,3 and 4 with acetone/ABS mix. Fitting test of main body and measuring size of top and bottom caps. Printing top and bottom caps. Fitting test of assembled...
  20. cybug

    Please help me find out what this motor is ...

    The closest I found is the DGW06-F154 36V by Shengyi (a daughter company of Suzhou Industrial Park Tongsheng Bicycle Co., Ltd) : http://www.syimotor.com/products_detail/&productId=e627c240-44b5-4f93-a395-3acbf8c1f3fc&comp_stats=comp-FrontProducts_list01-004.html...
  21. cybug

    Please help me find out what this motor is ...

    Just bought a non working, one year old e-bike "250W" 36V 10Ah for 150€ : I replaced the controler (KZQW22) by a KU65 and it runs OK now. I'd like to know what's this motor : The controler is made by "Suzhou Industrial Park Tongsheng Bicycle Co., Ltd" http://www.tsbicycle.net/ so if...
  22. cybug

    Charging 48V battery with 36V charger + 12V power supply

    I only have 10S BMS handy :( so I had to monitor for hours (2.62A) balancing with only one battery medic 6S at a time. A 12S BMS is planned for this pack ;)
  23. cybug

    Charging 48V battery with 36V charger + 12V power supply

    Nothing really new here, I post it for noobs (like me) who ask themselves how to do an emergency charging without the proper charger ... I needed to charge my "48V" battery pack (12S2P RC LiPo, Max. 50.4V) but have blown my RC charger. I only have a "36V" battery charger (42V/2.5A) so the pack...
  24. cybug

    Anti-theft GPS tracker, $20

    This one got a real GPS chip @ $32 : http://www.ebay.com/itm/Mini-Spy-Vehicle-Real-time-tracker-GPS-GSM-GPRS-Car-Vehicle-Tracker-TK102-/200967418722
  25. cybug

    Open Source CA alternative on German pedelecforum available

    I received a new message from BMS Battery today, the SmartBMS should be available again in about 2 weeks. Wait and see ...
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