Hi, I started gathering parts for this build in December but did not have enough time to push it forward till easter, last few days I spend in my workshop and have done most of the work.
Here are technical details of this build:
2x EMAX 5345 170 KV 63mm outrunner motors
2x Ollin board company VESC
Trampa long 35 with vertigo trucks, superstar wheels and ratchet bindings
Underwater Kinetics 206 Ultrabox and 309 Drybox
So lets start with the photos:
As You can see 4 5000 mAh 6S turnigy lipos fit nicely in 309 Drybox case.
The problem with the motors was that stator and rotor was held by this round piece of aluminium with set screw, I did not like the look of it, and it would interfere with motor mount not allowing to tension the chain properly so I decided to turn new shafts, with grooves for circlips.
Here You can see the shaft getting keyway milled, I don't trust small set screws enough
And final product:
Then I bored, keywayed, drilled and tapped sprockets to fit nicely on the motor shafts
After that I had to deal with how to fit all of this electronics and other stuff in this small 206 Ultrabox, it's easy to fit 2 VESCs in there, but 2x VESC + 4x 2200 uF caps + IXFN200 N07 MOSFET + 200A shunt for ampmeter circuitboard + 200A fuse + circuitboard mosfet switch for front LED light it's a bit more challenging, so I decided to mill aluminum mounting plate for all of this, which acts a radiator for VESCs lower mosfets.
And the last, most challenging part was to mill motor mounts, I had few attempts since January, but failed every time... until this weekend. I hope Jenso from E-TOXX does not mind my strong inspiration with his design, but... It's just the best solution for this task
Aluminum I used is 15mm thick 7075 grade, I guess it's strong enough
Here are photos from manual machining process in chronological order:
I'm not a machinist and the milling process took me about 20 hours...
I still have to mill 3 support braces for motor mounts.
Unfortunately I trashed 2 sprockets which I planned to use for rear wheels during machining, have ordered new ones, I need them to measure the lenght of support braces for motor mounts.
And here is front light, It's super bright and has long range, I made special mounting plate for it to not have to drill in the deck.
Oh, and I would forget, my friend wanted to have some fun with borrowed camera so he came to my workshop and interfered in my work, wanting me to do unnecessary things, to record them (burning titanium chips was not the part of eMTB build