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  1. Tommy L

    Grin Phase Runner / CA3 and BBSHD

    I have this setup and running it at 4750 watts with 62-64amp consistent then backs off to 3300watts at 40mph. But I hear that some have rewound with special 200C wire and are running 10kw into the rewound BBSHD. Anyone know where to get a rewind done?
  2. Tommy L

    Your Creation's Before & After Pics

    Hello!!!!!! Tommy L here.... I've been with you guys since 2007 I think. I haven't built in a while..... I moved from Canada to Florida USA 6 years ago. Built my wife a BB 750w bafang with Luna battery..... but not me.... I had the need to hot rod :P lol just over a year ago I started...
  3. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    I upgraded. I built a Tesla mod 3 pack. 5p 20s 25ah 1.85kw 74v nominal 84v hoc Phase Runner controller from Grin 3250 watts setting in the software 22.5amps Field Weakening 40.6mph 65.34kph 42t Lekkie front 28t rear Appropriately 2400 watts to maintain 40mph 40-45°C temperature So...
  4. Tommy L

    Spot Welding Copper Strips to 18650 Battery Cells

    I’m doing the sandwich.... 0.1mm pure copper sheet/foil 0.2mm pure nickel x 8mm I figured this cross section should give zero “C rise” to 75-90 amps 100-140 amps with some loss to heat 160 amps max I have a 30amp BMS. 35 miles on the pack so far. Not even warm to the touch when asking...
  5. Tommy L

    Where did everyone go?

    Ten years back..... so grateful for the awesome help here!!! So I’m on Facebooks DIY ebikes and help others And the Facebook Mid drive bb’s and help there and even help on the 18650 new builders Facebook. I’m trying to give back. But the ES Facebook is strange lol. I’m grateful for the...
  6. Tommy L

    Radwagon 72v GMAC Phaserunner Build

    Omg that’s near 4kw in a geared hub. Oh my!!! Ok.... now I need to find a donor bike. Maybe the NYX frame. 😊
  7. Tommy L

    Radwagon 72v GMAC Phaserunner Build

    Thank you for your reply!!! That’s great to hear about regen. Do you find the 2000 watts torquie With it being 5to1 ratio??? Pulls away quickly ??? Take care! Tommy L sends.....
  8. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    3 2mm spacers on the right side before inserting into bottom bracket. Then 2mm shim behind the 46T stock chainring and chain line is spot on center. I have a Lekkie 42t on the way. I’m hopping that I can take 1 2 or 3 spacers off the BB once the 42t arrives As it is smaller diameter and...
  9. Tommy L

    Radwagon 72v GMAC Phaserunner Build

    I just found out about the GMAC and I just finished my BBSHD fat build. Omg.... now I need to do another build. I love regen, but my 10 year old DD build is heavy. Question..... is the GMAC torque sensing during pedaling like a Bionix? I thought the BBSHD would be torque sensing since the...
  10. Tommy L

    Your Creation's Before & After Pics

    Framed Alaskan 26” 17” frame Fat bike BBSHD 46t (42t Lekkie being shipped) Lekkie buzz bars 160mm with left crank offset to correct Bafang motor “Q factor” Micah Tolls BMS 52v 14s 30amp continuous Tesla Model 3 cells - 0.1mm copper 0.2mm nickel Kwelder Moosetreks triangle bag 52v nominal...
  11. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    I order a couple of triangle bags. This one seems to be robust and is lined and the bottom is Reinforced with a vinyl.
  12. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Triangle bag just arrived and got the BBSHD installed. I like the upgrade display. I just need to figure out how to tell my BMS to use its battery screen.
  13. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Bike is in!!!!!
  14. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Sorry I missed this. “18650 heat shrink and cell holders inc” On eBay. Find him on Facebook and contact him on messenger for 10% off for forum members.
  15. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Absolutely a great point! I contacted Micah with regards to the 30amps before making the purchase. 30amps is the continuous rating and can handle up to 80amps, but not 80 for long or it cuts. I'll be mostly on lvl 2 or lvl 1 pedaling :) but I'm sure I'll hit 30 plus amps a couple of times...
  16. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    I think I’ve got is sorted out. Is this working now???
  17. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Dang! I thought I had it sorted out 😭 Had to get Photo Bucket....... Everything else is HTML :cry:
  18. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    Both sides complete! 50.6v about 3.6v a cell 14s 1.26kw 25amp/hr 1260 watts 1C 2520 watts 2C I'm learning from the past 10 years that this is very plenty for an ebike. I'll probably use 600 watts or less most days :P hmmmmm lol now I wonder if I put in the BMS that I purchased from...
  19. Tommy L

    Framed Alaskan Fat BBSHD Build Thread

    One side done!
  20. Tommy L

    kWeld - "Next level" DIY battery spot welder

    I put another battery in parallel just now!!! Three 12.8v nominal 9.6ah LiFePO4 in total. You are absolutely correct. 60 joules and reads 1515amps. Electrodes are cooler!!! You sir are a godsend 🙏🏻🙏🏻🙏🏻🙏🏻 Greatly appreciate your efforts in helping me.
  21. Tommy L

    Luna advanced charger

    I totally understand bulk charge, but when you have a BMS, it has only so much ability to bleed. I believe some that I’ve seen are around 200miliamps. So I’m not sure if that needs to match a chargers final holding current. You want the charger to shut down once all the cells are at 4.2v and...
  22. Tommy L

    kWeld - "Next level" DIY battery spot welder

    Also if you have more batteries you should try to ad one more paralel so weld current goes up to 1500-1800A and that gives you shorter pulse times what means in copper welding that more energy goes to weld and less for heating the copper around the weld. I bet you can turn down joule setting...
  23. Tommy L

    Where did everyone go?

    John in CR flip flops and all. 😊 Ron.... your out side of ES stuff has improved to be more accurate! You actually know what you are talking about now 😛😛😛 Are we still in toxic land??? Ok .... I’m safe 🤪😛 My first Ebike was two huge agm batteries With a 1000watt inverter on my $99sears no...
  24. Tommy L

    kWeld - "Next level" DIY battery spot welder

    0.1mm copper 0.2mm nickel 90 joules 1150-1200 amps Looks a little hot, but during tests, this is where Good adhesion is. https://drive.google.com/file/d/1-K7nLbpHJJgJjSZHHYbwyDEvOcehPNMV/view?usp=drivesdk
  25. Tommy L

    "Copper/nickel sandwich" buses for series connections

    0.10mm copper 0.20mm nickel 90 joules 1150-1200amps Looks a little hot, but on several tests, this is where good adhesion is. https://drive.google.com/file/d/1-K7nLbpHJJgJjSZHHYbwyDEvOcehPNMV/view?usp=drivesdk
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