Recent content by Squilt

This is how I'm thinking the battery will look. Just received the BMS and it is huge. The pictures online didn't do it justice It's at least twice as big as I expected. I don't know where to mount it.

Bought a 15t cog from a 9 speed cassette on eBay and got to work making the aluminum parts and testing it out. Because the idler moves the chain up, the suspension is compressed by pedaling. It's not great but I don't see any way around it. Still moves around just fine. It shifts through all the...

Weirdness has always been a primary motivation behind my projects

At least 1kg in the last month Prototyping has never been more rapid and cheap. I can afford to print several test fits without even measuring properly. Unthinkable on the mill.

I lied, the drivetrain was not taken care of. The motor drive side is fine, it's just that now the motor gets in the way of the bike chain. I thought I could bring the chain under the swingarm pivot but there's no way it wouldn't rub against the side of the swingarm that way, and I would have...

I took this thing to about 40mph downhill before the wheel swap, and it feels much better with the heavier wheels. But adding a damper should be easy enough if I need one.

The drivetrain fits. Had to re-print a bunch of one part to get the chain tension right but it doesn't need any other changes as far as I can tell. Threw some 3d printed gears in there as well to play around with. Video Next step would be buying and machining parts. But I first want to have the...

I was going to wait until I had something more substantial to show. I haven't had much time but progress is picking back up. I think I know what the drivetrain is going to look like. I'm 3D printing test pieces now. Choosing a belt for the first stage reduction would have made the design way...

Installed a headlight before handing it off.

Chinesium strikes. After over 100 cycles, the battery started having issues. It would cut out while charging. Sometimes for hours at a time, sometimes rapidly on and off. If I left it on the charger it would still charge eventually so I let it be. But it kept getting worse and worse. I worried...

It's a nice sound IMO. Not as loud in person as the video might make it seem. Yep, I considered it for a less steep reduction but I wouldn't be getting the most out of the motor if I spun it slower. So I went with the 146kv. Though it doesn't seem to really be 146kv. At 52v I'm only getting...

I wouldn't trust it in the rain, but it can handle wet roads since I added a small mudguard on the rear. The battery should be pretty water resistant. If I enclosed the ESC and wrapped some wires, I could maybe get it weatherproof. But my friend wouldn't want to ride it in the rain anyway.

I used a CNC mill to cut them out. It was a pain, I wouldn't do it again if I can avoid it. Corrugated plastic sheet. The stuff lawn signs use.

I interrupted my recumbent trike build-in-progress to make an e-bike for my roommate to get to work. The two goals were maximum power to cost, and ease of operation and maintenance. I don't remember how I settled on each component. There was a lot of guessing around the power figure but I'm very...