Recent content by jlpmedia

Hall sensor connector type

Anyone know what kind of connectors this controller uses for the hall sensors.

thank you for the psycho analysis. haha The aluminum Im using is heat treated aircraft grade quality, so im more than confident that it will hold up to any amount of stress. But regardless, I feel like with any motor design you need at least 1 fail safe...1 part that will break so you dont...

okay thanks. I'm not at all concerned with overheating as my motor is liquid cooled

@amberwolf: oh god. there's that dreaded word 'interesting'. which usually means you are unsure about whether or not you like it or agree with what I'm doing. :) @ veloman: I got the concept of using foam from Rick Wianecki. his velo build can be found here...

Im thinking about overvolting my bpm2 hub motor by 2x (96v) but i dont want to fry any of the electronics inside of the motor. ive seen people with 144v motors, but is that dependent of brand/mods? Ive already machined a new aluminum gear to replace the nylon gears and i cast a 7600psi plastic...

I'm a machinist by trade, so Id like to think that i could make a simple spur gear. although with only a bridgeport, cnc and chucker at my disposal, it might take a couple days with my busy schedule. I've never melted a thermoplastic before to reuse in a mold so the outcome would be interesting...

The motor threw a few obstacles at me, first was taking the thing apart. If you dont have the motor cover wrench ($35-greenbikekit.com) you will need to make one. You can always try the flat head screwdriver and hammer method, but you will bang it up a lot. it unthreads...

Okay, so now that I got the learning out of the way the real fun begins. The season had changed as it was winter now. and the kids room was the only room big enough for me to work. :) I bought a KMX Venom. no it doesnt have any suspension, but it was the lightest, strongest frame I could find...

Now came time to build the body (Version 1) Supplies Cutting out the templates Assembly Assembly Continues Filling in the Ribs Front View FIberglassing I've been doing computer animation for a few years so I was able to design everything in the computer (Lightwave 3d) and make...

Trike A-Arms Rear Wheel Mounted Rolling Chasis Suspension Like I said earlier, this whole process has been trial and error. I couldnt figure out the geometry with direct steering so I opted for a steer by wire.(tie-rod shown in the image) But I can honestly say I liked it better because...

I've been working on a solar powered velomobile for over a year now and after much trial and error have come to a point of near completion. I had started making a trike from random bicycle parts and scraps of metal lying around the shop. Trips to the local hardware store were quite recurrent to...

anyone know of a link to find a bpm2 planetary gear? greenbikekit.com has never worked for me and aliexpress doesnt have the 42T gear that im looking for. I've modded my motor quite a bit so far (liquid cooling, thicker gauge wires, removed the clutch-for battery charging, changed the gear...

this is a 100% guess, but I'm thinking it has to do with motor efficiency?

how about this...get a kenda airless EZN innertube and put it inside a tubeless tire. there should be enough air to give it the same feel as a regular tire, but if you ever do get a flat you have the innertube to get you the rest of the way to a shop/home.