Whiplash wrote:What does a pack like that weigh? It looks heat, why not LiPo?
I have been following your build, it's very impressive. I am also working with the 18650v cells you are using. I am planning on CD welding tabs as well, basically we are following similar battery paths.
I liked your balance leads at first, but I foresee a potential issue. Where you have bent those tabs over the edge at the 90 degree angle, they are pressing directly against the thin plastic layer. With vibration I am worried the sharp edges of the tab might slowly but surely cut through the plastic; i have seen this on several Makita packs, where the sharp edge of a tab eventually cut through the green plastic and shorted the pack to the negative body housing, and thsoe tabs were on top, horizontal to the plastic layer and they still cut through. I would think one thin insulating layer like electrical tape would at least double the shorting protection, but I would be generally weary about bending those tabs like that at all; the edge might end up slightly rounded, causing the sharp edges of the tabs to actually slightly point inwards towards the plastic...
Anyway, maybe I'm just being paranoid, but I'd hate to see you lose free batts . What do you think?
kfong wrote:Nice freewheel solution, where did you source the parts, especially the one way bearing?
kfong wrote:Nice machine work. I assume the screws are to tension your custom clutch. More details on that would be nice. Where did you source the clutch material. Are you using one or two clutch pads. How has this been working out for you. The area seems very small to be effective, but I have no experience using one.
kfong wrote:Are the pads glued down to the metal or are they allowed to freely rotate, did you source the pads from Dalton or make your own. I might need to do this for my RC build if I find the direct connection to be too harsh for the motor.
Whiplash wrote:Awesome work! great looking and precise! Is the #25 chain strong enough for that application though with two motors? I guess it IS before the major reduction but it seems a possible weak point? I would assume you are planning on running around 10,000 watts or more since the motors will handle 5K a piece, seems like a stretch for the chain (no pun intended)..
E-racer wrote:cannot wait to see this thing run!