Vanarian wrote:Hi, from your description and the pictures I see that a huge amount of love and work has been poured into your scooter.
Big kudos for that.
Now you may have a similar problem than me : your communication is not great! No offense here, let me explain
I come here daily and it took me a month before seeing your thread despite coming regularly. Many e-skaters moved unfortunately onto other forums leaving most of ES to the e-bikes builders. The crazy here was one year ago.
To attract audience to your scooter you should not hesitate to film yourself riding TROLLI. Even an amateurish video will do, just update a YouTube channel with building time, or going to manufacture or stuff. People love that, I suck at providing it yet that's what I ask from others.
You are perfectly right, I need to invest more energy in this direction.
Publish on ES Facebook page. Do you have one? You SHOULD get one and post it up. That's a ton of time to pour into communication (I'm not talking about advertisement). Give more to the community and you will get better feedback. An arm for a finger.
Shame on me, but even didn't know about ES fb-page. Thanks for great advice!
Back on topic, it looks very good. Which motors are you using and what is your battery setup and range?
We have tested a number of motors, keeping in mind minification of weight. Chosen one for production was light 350W geared motor with overall weight 2.7kg.
It can do ~30km\h with my weight (80 kg) with good dynamics (peak power up to 1kW).
We are using 48V Li-Ion batteries of 18650 Panasonic PF cells in a standard battery cases (Luna, Pedelecs - they use the same battery case).
For now we have two battery options: 11,6Ah*48V (3,3kg) and 17,6Ah*48V (4kg)
11,6Ah do ~ 30Km range (for my weight), 17.6 ~ 50km.
About controllers which type are you building? How many FETs? FOC capable? Do you plan on making a "assist mode"?
For now we are using Chinese controller (so called KT controller) the main advantage of which is compactness and reliability. (6 FETs + FOC)
There is a new candidate - VESC generic(6 FETs + FOC\BLDC mode) which main advantage is open source firmware so we can modify it for our needs and get much more power than from KT controller.
We have been discussed "Assist mode", and it is possible to implement, but all our testers says that "I will not use any assist mode after I tasted push-the-throttle-and-overtake-a-wind mode "
What is size of wheels and tyres, is it easy to swap / repair? What about torque on the 2000W version? Lots of questions to be asked there
Wheel diameter is 12 inches (including tires). Last time when I have caught nail in a tire: I have changed tube right on the street by hands, it took me about 20 minutes. With some experience you can change tube without any tool
But it is obviously better to use bike service if it possible - in my place they do this work fast, cheap enough and generally has backup 12'' tires and tubes right in store.
I can say that it is possible to install 14 inch wheels too but it looks too brutal
scooter becomes more like offroad than city transport
Actually even on our small and light 350W motor we can have quite good torque (with our VESC-generic controller) it is about 30 N/m and it feels quite dynamic from the start.
2000W wheel we have tested has about 60N/m and it was like ...overreacting, but there are some people who liked it