Recent content by mechanix

Miro: nope, didn't forget about the rain, my final task once the holidays are over is to put a fairing on the side to cover the battery/controller/wiring and 3d print some caps to to cover the charging ports on the console. After I'm done, it should be sort of water resistant, but I don't plan...

If I remember right, I used 3/8" stainless steel. Might even be 1/2"... 1/4" might be hard to drill the holes for the pinch bolt.

Almost finished! just need to put the plastic fairing on the back to cover up the electronics, and finish the balance charger. I have a question for the electronics gurus out there: I have two 10s chargers to hook up to the 20s battery. I thought that if I had two separate chargers on two...

Wife was gone for a three day weekend, so I spent almost the entire time in the shop! Took it for it's maiden voyage and it is fast! My guess is around 40mph, but I haven't calibrated the speedometer on the CA yet so it's just a guess. Here are some progress pics: Battery ready to be sealed up...

I also like this! People just post one medium-sized image of their build, and a link to it. Simple, and image-driven so easy to skim through. Maybe to few different threads such as "Hub Motors" "Non-Hub Motors" "Scooters" ...etc....

Dang, that's a bummer! I was under the impression that these were 41ah cells based on the www.hybridautocenter.com description. Looking back at the order confirmation email, I can't believe I bought these at the beginning of 2017 and still haven't ridden this bike!

These are the newer ones, that come in packs of 8

Just got the battery enclosed - ready to mount it to the bike!

I've got a question about the power supply I was planning on using for my two iCharger 1010B+ -Are the outputs isolated? I will be charging the whole 20s setup in two separate groups of 10s, and would like to not have to physically disconnect the two groups before charging. -I found two pots...

miro13car, I believe they are the new 41ah cells, and yes, I didn't solder them because I would worry about the heat getting to the cells. And soldering is so permanent, I'd like to be able to reconfigure the cells down the road if my design changes. I've already changed my design about 100...

I just wasted 5 hours of my life looking for a switch for this bike...is there not a standard solution for this yet??? My battery pack will be 80VDC hot off of the charger, this is what I'm thinking I'll need to switch this on and off safely and reliably: -10W ~500ohm resistor -80V 100A...

10mm stainless button head with nylock nuts. Planning on using anti oxidation compound because I'm not sure how the stainless reacts with the copper. I'm open to better suggestions, though.

Going to use copper pipes cut in half then pounded flat: Getting closer! I feel like a weekend dedicated to it and I can actually ride it!

Got some more work done on it this weekend, mostly on the mounting brackets for the battery box. Clearances are tight!

A few more update pics, can finally pedal it, man this this is a pig on anything more than 2 degree slope! The rear pulley was having a hard time sliding left and right when shifting gears, so I put a bronze bushing to help it out. works great so far!