Recent content by Kodin

They do exactly that for fully-immersed underwater outrunner motors. Pot the stator in epoxy making it one solid block or cylinder, put stainless or ideally ceramic bearings in, throw it back together. Some people also pack the space between bearings with grease, but that adds a lot of...

Here's a question - I have some Maytech 6396 outrunners on a mountainboard that are sealed with a 3rd skirt bearing around the open end of the can. As such, they have no air circulation path as far as I'm aware. While they are 0.2mm lamination stators and have good winding lays, they can still...

Considering he's building the Psychoframe now, you definitely called it. :shock:

Hey @nowind - How thick are the lamination layers on the stator for those Leopard's? I know all the Maytech motors are 0.2mm and many of the cheaper/no-name motors tend to be more like 0.35mm or even 0.5mm; some of the really high end go down as thin as 0.15mm for the highest end competition...

For what it's worth, I now have a working electric skateboard! This was a one-month build, as a limitation for myself, and I completed it beginning to end within that timeframe. A month after that, I've actually learned how to ride, and am now mostly successful at carving down the street at...

I'll likely be buying them in batches of 100 cells over the course of a couple months. While cycle life will be different, I'm hoping it won't be different enough to cause too many problems once fully "stocked"

Any issues with using say an 8P module with say, 4P worth of cells and upgrading to higher cell counts as more disposable money is available? Will tension stay the same for the most part?

So I've been doing a lot of research into components to strap to my longboard and asked a lot of ebay/aliexpress sellers for lamination thickness specs. So far only one aliexpress seller was able to provide any info, and it looks like the "fatjay" brand outrunners (at least in 63xx sizes) use...

It'll be done when I finish it. You can't rush OCD. :P

Thank you sir! It's an honor to hear that from you. In retrospect, I'd have been far happier by now building a ready-made but flawed (in my mind) kit and incrementally upgrading rather than obsessively over-engineering everything to have orders of magnitude too high a safety factor, but...

Whoops! Forgot a picture of the bike sitting on two wheels.

SOON! The bike is 99% built but I haven't gotten around to wiring up phase and hall wires, mounting the controller, programming, or buying a battery. The lack of battery is the main impediment, and like many stalled projects, revolves around lack of funds. In the meantime, I may throw together...

Well, it's been years, and I now have the problem that time is more valuable than money. So I've purchased a "Tank" ebike frame, (Similar price class to the EEB frame, though heavier by a noticeable amount,) and am currently modifying it for my tastes. (Replacing swing arm rubber bonded...

Question - Most of the electric throttle solutions I've seen are pretty cheaply made, and if left in heavy rain will likely saturate. Does anyone make a fully waterproof sealed throttle assembly?

Also you lose power efficiency below 13t sprockets. 11t is nice, but does make you have to pedal harder.