Recent content by ns-esk8

Not all VESCs are created equal and YMMV... but I really like them for DIY stuff (going back to Enertion VESC 4.12 days). +Being able to repurpose an old VESC previously used with a small skateboard motor and replace a fried BBSHD controller is pretty cool, too, IMO (and calibrate it for...

I am currently working on a QS273 bomber clone build with a 3shul CL350 on a 30s9p Samsung 50S pack. I also have a CL1000 on order (will see if I have any cooling issues or need more power than the CL350... otherwise, the CL1000 will likely be slated for future "TBD" project). I have only done...

thanks, that clarification is helpful and does help start to make more sense of things. so, does that mean that starting torque (from 0mph) on a given motor should use roughly the same amount of phase amps whether it is powered by 96v or 48v? (very) anecdotally, I've had skateboards, etc, that...

Thanks for the reply. I know the relationship is not the same (not ohms law, more motor specific variables to consider), but wouldn't increasing the voltage also decrease the motor/phase current needed? (on a given motor for a given power output, etc) I don't have a great grasp of how an ESC...

Thanks for the reply. I have seen the sentiment from a few folks on here that increasing voltage does not impact current needed (and/or voltage doesn't increase torque), but this wasn't my understanding and does not seem to align with my anecdotal experience (though I am just a hobbyist 😅). If...

Thanks for the info. I knew about the current relationship, but didn't know the saturation torque was the same. for better or worse, the 3T is on the way 😆... but the controller and battery voltage are still variable. I would like to be able to cruise along up to 40-45mph and be within an...

Thanks for the reply/feedback. I also have a couple e-mountain bikes and a sur ron. This will just be for road cruising... do you think the ride quality will still be a problem? I went with QS273 mostly for the improved heat dissipation. I am a bigger rider and have a bunch of hills around me...

Ahh, good to know, thanks. I've done .15 and .2 as well, though .2 takes much longer (waiting for probes to cool). I'm sure it varies quite a bit, but I'm how curious much thicker they will be on a ~40-60ah cell. I definitely wouldn't expect a vendor to bother with cell matching, but if the...

Thanks for the info. That helps a lot. I think I would always use a BMS for charging and usually active balancing (at least lately)... but wondering if I can get away with using a smaller, relatively cheaper one (EG: ~40a JK BMS) vs. a big high discharge (EG: 200a-300a ANT BMS) w/ quality...

Great, thanks. Volume will be a big consideration, but that could be a viable path, as well. If I buy cells, I would purchase name brand cells new/together from a reputable Alibaba vendor... am I likely to run into matching issues going that route, as well?

Thanks for the reply. I appreciate all the info. I guess nickel aluminum sandwiches, etc, don't work :(. I'll look for examples of clamping. I'm not much of a fabricator, though :/, so will probably see what's available w/r/t those parts you mentioned. I also tend to go the overspec route...

I am interested in doing a lipo pouch cell battery for my next battery... I have built 18650/21700 packs, but this is new to me and I have had a hard time finding any sort of semi-comprehensive guide/tutorial/etc (and nothing in the stickied post). At a glance, it looks like this should make...

I had never heard of those HookWorm tires before... how do you like them?

(context) I am working on my first first "non-mid-drive" bike build for the summer. When it came to the winding, I was trying to decide between the 3.5T and 5T. I wanted something relatively torquey (more below), but since I planned to cruise regularly at 30-40mph, wanted some efficiency and...