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  1. S

    A bit disappointed by my BBSHD (from EM3ev)

    So let me tell you first that if I had known what would happen in advance I would still have placed the same order because of the lack of alternatives, the BBSHD is a great motor and EM3ev seems to be a great company but I still have a bit of a let down taste in my mouth... I had 2 problems...
  2. S

    Designing a flat, structurally sound battery pack

    Hi, I'm currently putting together a 14s4p battery pack with the following requirements: * Pack split in 2x 7s4p serially connected for having 2 equal weights, required for transportation (don't ask...) also, no BMS * the 7s4p's need to be flat, arranging them as 2x14 matrix is my preferred...
  3. S

    Spot welding overlapping nickel strips

    Hi, I have DIY'd a spot welder (thanks to malectrics) that's working like a charm: I am spot welding 18650s with .15 pure nickel with a 3ms pulse and consistent holes in the strip when teared down. So everything is great except that when I try to spot weld the same nickel strips on top of each...
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