BeaNZ
100 µW
Hi Everyone,
First build
I found ES a couple of months ago (which has helped me a lot) and finally found time to sign up. Here we go.
Before:
(Picture off the internet)
After:
I need to add some more links to the chain to accommodate the new sprocket
Spending:
-bike second hand (hardly used) for $500NZD
-Bafang BBS01 250W motor about $440USD off Aliexpress.com
-Battery pack samsung ICR18650-26F 2600mAh 10S7P 18.2Ah @ 36V (haven't tested yet) $250USD of batteries
So less than $1500NZD ($1280USD)
This will be my commute to school and work (12km) from now on. Old Road bike is made redundant. Woohoo
Bike weighs 22kg now.
Battery pack: 4kg
Motor: 4-5kg
Using old inner tubes is just a mock up at this stage. It works pretty well as long as it's not too bumpy. Notice the ripped tube in the bottom right on the seat post tube (from bouncing around in the paddock). :wink:
The display stuck up too much when I put my bike upside down. It's a lot nicer now. (about 15mm ground clearance now)
Unfortunately my bb was 73mm rather than 68mm so I added spacers, but there is another nut that goes on the end which doesn't fit now, so it becomes a bit loose every so often . Anyone got any bright ideas? It also doesn't quite fit snug up to the bar because it's a fatter bar.
I had to add 150mm of wire to the speed sensor to make it fit.
When I am in the lowest gear and I spin the rear wheel backwards (making the pedals turn backwards) it derails the front sprocket. A bit annoying but it only happens in first gear. Not very obtrusive. It may go away once I've added some more links into the chain.
Altogether I'm quite impressed with the BBS01. I've been learning to wheely 8) (On 250W I know).
I'll post some more pics & info on the battery pack once I've charged the camera (if only everything ran on 18650s )
First build
I found ES a couple of months ago (which has helped me a lot) and finally found time to sign up. Here we go.
Before:
(Picture off the internet)
After:
I need to add some more links to the chain to accommodate the new sprocket
Spending:
-bike second hand (hardly used) for $500NZD
-Bafang BBS01 250W motor about $440USD off Aliexpress.com
-Battery pack samsung ICR18650-26F 2600mAh 10S7P 18.2Ah @ 36V (haven't tested yet) $250USD of batteries
So less than $1500NZD ($1280USD)
This will be my commute to school and work (12km) from now on. Old Road bike is made redundant. Woohoo
Bike weighs 22kg now.
Battery pack: 4kg
Motor: 4-5kg
Using old inner tubes is just a mock up at this stage. It works pretty well as long as it's not too bumpy. Notice the ripped tube in the bottom right on the seat post tube (from bouncing around in the paddock). :wink:
The display stuck up too much when I put my bike upside down. It's a lot nicer now. (about 15mm ground clearance now)
Unfortunately my bb was 73mm rather than 68mm so I added spacers, but there is another nut that goes on the end which doesn't fit now, so it becomes a bit loose every so often . Anyone got any bright ideas? It also doesn't quite fit snug up to the bar because it's a fatter bar.
I had to add 150mm of wire to the speed sensor to make it fit.
When I am in the lowest gear and I spin the rear wheel backwards (making the pedals turn backwards) it derails the front sprocket. A bit annoying but it only happens in first gear. Not very obtrusive. It may go away once I've added some more links into the chain.
Altogether I'm quite impressed with the BBS01. I've been learning to wheely 8) (On 250W I know).
I'll post some more pics & info on the battery pack once I've charged the camera (if only everything ran on 18650s )