Endless Sphere

I've done exactly that with 23s LiFePo4 packs and old 20s packs, and it's worked just as expected. The 20s pack helped keep the higher voltages stiffer and then the A123's took over the heavy lifting. That was without BMS's other than my human BMS. I would choose a ratio and top of charge voltage t...

...it will be a workout moving a pack like this. Less things to break on the bike as well, good to keep the moving parts count down to the suspension and a few bearings... Exactly, on both counts. Major risk of something bad happening to the most expensive part of your ebike, the battery. I mount m...

I do not mind bike maintenance. Brake pads, chains, cassettes, (non-motorized) hubs, headsets, …. You name it, I'll do it. If I cannot do it my bike shop can. Hasn't been happening for about five years by now. I stopped using bicycle parts years ago due to their high maintenance requirements. Even ...

My bikes are solely for city riding. I make them all rigid. No shocks. So it's all unsprung mass. 🙃 If you ride instead of carry, then weight is of little significance. If carrying is a big enough deal for a few pounds to really matter, then you should be building electric skateboards instead of eb...

I've done exactly that with 23s LiFePo4 packs and old 20s packs, and it's worked just as expected. The 20s pack helped keep the higher voltages stiffer and then the A123's took over the heavy lifting. That was without BMS's other than my human BMS. I would choose a ratio and top of charge voltage th...

Park the cars outside, or just get rid of them, and then your garage won't get so hot. If that or moving to somewhere with a better climate isn't an option, I certainly wouldn't make that size pack removable. Long before that hassle my bike would get an indoor parking, or it's own space in the garag...

Sidwalks are the most dangerous place to ride. That's why they're called side walks not siderides. Not around here. Here, sidewalks are, most of the time, the safest places to ride. One just needs to go slow. Going slow is better then being hit by a car. Around here if you ride in the street during...

Sidwalks are the most dangerous place to ride. That's why they're called sidewalks not siderides.

The dc source has to be lower voltage than the battery on the bike for it to work. I knew that, and I believe it's best to have it not too much below the packs I want to charge for best efficiency. The lowest voltage on my bikes is 60V nominal, so the most likely voltage for the home based pack wou...

...stick my bike on the back of my truck... I feel sorry for your bike, embarrassing it like that. No bike of mine has ridden on or in a gasser since LFP came down for a visit 9 years ago, when none of mine had enough range to reach the beach. It's time to step up and build some electric transporta...

Has anyone using solar panels as the power supply for charging via the Nucular controllers' Converter function? Would there be any special considerations or would the controller operating as a converter effectively function as a charge controller enabling the use of panels direct with only a diode ...

I tried using a phone to post and end up with a double post. I don't know phone lovers handle the tiny screens and horrendous keyboards. 1st and last time I connect here by phone ends in this edit by PC, since too late to delete. Upper right corner of the post, see the X? That's delete. Once you se...

Has anyone using solar panels as the power supply for charging via the Nucular controllers' Converter function? Would there be any special considerations or would the controller operating as a converter effectively function as a charge controller enabling the use of panels direct with only a diode a...

That torque constant equals a Kv of 7rpm/volt, so you'll need to run a pretty high voltage to get to the rpm you want, though with that amount of torque how much gear reduction do you really need? The low winding resistance supports the level of current you'll need to achieve that torque, especially...

If it's a BLDC motor you need the Kv and the expected phase-to-phase resistance. Then you can get an idea of the current handling and torque potential of the motor. Kv tells you exactly the torque per amp the motor will make, which I'd trust long before I would the manufacturers hype. Regarding your...

Looks like a nice little donor for an e-conversion. If the swingarm is steel, I'd definitely weld the motor mount to the swingarm in front and below the pivot point. The purpose would be to eliminate chain issues and make it as quiet as possible, as well as obtaining the anti-squat attributes of mot...

I tried using a phone to post and end up with a double post. I don't know phone lovers handle the tiny screens and horrendous keyboards. 1st and last time I connect here by phone ends in this edit by PC, since too late to delete.

So, if I understand correctly, some smart guys want to pay in advance to get ahead of others ... :roll: As far as I know, you pay when your order is about ready to ship. I tried to pay in advance, though not to speed things up, and was told no. Nucular has chosen a route quite different from Adaptt...

To both John in CR and Electric God, when did you get on the waiting list? They r building the 12F's as quickly as possible now that they r out of beta. I ordered mine in late july and was told 60-90 days, but were ready quicker. I 'll wait to order 24's until after more r out there in use. In the ...

Interesting solution, but I'd prefer independent operation to minimize brake wear. Plus I am a cheap and simple type.

you could use one switch if you add diode. from controller EN -|>|- to switch (dc-dc gnd) otherwise you will apply high voltage on EN input and controller will be probably dead. really dead. very very. not fun to fix. i warned you. im working on 3A dc-dc for controllers Yes actually adding a jumper...

I'm probably just showing what an electrical dumba$$ I am, but here goes? Since everything shares a common ground to battery negative, is there any reason I can't put my keyswitch to complete the circuit to ground for my DC/DC converter as well as K1 to gnd? I'm sticking with fuses as my protection ...

A new Nuk owner here with the arrival of 3 of the 12F's. 2 will drive a 6phase (dual 3 phase actually) HubMonster, and one is going on my son's 3kw generic hubbie Phazor frame build. I already have CA3's and use will often be in heavy rain conditions, so I picked up only one display for use to set ...

Give us some news soon to give us your impressions Will do. I have good long-term energy consumption info and will connect a pair to one of my HubMonsters using a CA to measure, so at least with my motors, we'll have some good data about efficiency gains using Nuks. Hopefully reports so far hold tr...

A new Nuk owner here with the arrival of 3 of the 12F's. 2 will drive a 6phase (dual 3 phase actually) HubMonster, and one is going on my son's 3kw generic hubbie Phazor frame build. I already have CA3's and use will often be in heavy rain conditions, so I picked up only one display for use to set c...