jackjetful
100 W
- Joined
- Feb 15, 2013
- Messages
- 158
Finished Bike:
[youtube]N6I05G5x81Q[/youtube]
[youtube]9nxg4TUhBmM[/youtube]
Hello Guys,
My name is Jacob and I live in Vienna Austria. At home I have my workshop. Since my childhood I loved to build vehicles. The first builds were all with combustion engines like go-karts, trikes, gas powered bikes … the random fun- vehicles
During a project last year on the technical collage were I graduated, I realized how awesome E- vehicles could be. My team and I were developing a new intelligent force measuring system for electric bikes.
Here’s a video:
http://www.youtube.com/watch?v=CiYBd66nIM0
Well in fact I love to ride downhill or endure bikes, so I started to build a random hub motor converted e- bike.
I rode my bike about two years after I decided to build another NON HUB e- bike. The problem for me was that I live in a hilly area so the Motor braked the bike when I went downhill and didn’t accelerate enough when I went uphill.
Then I converted my Hardtail to a hub motor MID DRIVE.
I used a cheap 36V 500W gearless hub motor with reduced axle:
Here is the motor mount:
Later on I also added some steel bracing to the crank.
After some weeks of riding this bike I found out that the frame is flexing a lot and sometimes the chain jumped out in reason of that.
I made a lot of reaserch to find the “perfect” NON HUB frame but now I think there is nearly no frame that fits perfect for a NON HUB setup.
A really god one is shown in this topic from bzhwindtalker:
http://endless-sphere.com/forums/viewtopic.php?f=28&t=37805&start=30
You were even pushing 200W through this!
Now I will start to construct and build my own frame. I bought a Centurion NO POGO as a geometry reference.
My plan is to make double down tube in two layers. So the motor is placed inside the frame. This should solve the problem that the force of the motor is pushing with a big force because of the leverage effect.
I’m still wondering how the frame of bzhwindtalker could withstand this huge force.
After my first sketches and measuring and calculating I started to make 3D CAD drawings
The first prototype of the frame will be made out of steel because it is easy to work on and also cheaper than aluminium
I will update my new constructions / drawings. It is very hard to calculate all those angles and notches on the tubes and i worked a long time to do the first drawings :?
But the basic drawings are there and I will continue soon.
Greetings from Austria
Jacob
[youtube]N6I05G5x81Q[/youtube]
[youtube]9nxg4TUhBmM[/youtube]
Hello Guys,
My name is Jacob and I live in Vienna Austria. At home I have my workshop. Since my childhood I loved to build vehicles. The first builds were all with combustion engines like go-karts, trikes, gas powered bikes … the random fun- vehicles
During a project last year on the technical collage were I graduated, I realized how awesome E- vehicles could be. My team and I were developing a new intelligent force measuring system for electric bikes.
Here’s a video:
http://www.youtube.com/watch?v=CiYBd66nIM0
Well in fact I love to ride downhill or endure bikes, so I started to build a random hub motor converted e- bike.
I rode my bike about two years after I decided to build another NON HUB e- bike. The problem for me was that I live in a hilly area so the Motor braked the bike when I went downhill and didn’t accelerate enough when I went uphill.
Then I converted my Hardtail to a hub motor MID DRIVE.
I used a cheap 36V 500W gearless hub motor with reduced axle:
Here is the motor mount:
Later on I also added some steel bracing to the crank.
After some weeks of riding this bike I found out that the frame is flexing a lot and sometimes the chain jumped out in reason of that.
I made a lot of reaserch to find the “perfect” NON HUB frame but now I think there is nearly no frame that fits perfect for a NON HUB setup.
A really god one is shown in this topic from bzhwindtalker:
http://endless-sphere.com/forums/viewtopic.php?f=28&t=37805&start=30
You were even pushing 200W through this!
Now I will start to construct and build my own frame. I bought a Centurion NO POGO as a geometry reference.
My plan is to make double down tube in two layers. So the motor is placed inside the frame. This should solve the problem that the force of the motor is pushing with a big force because of the leverage effect.
I’m still wondering how the frame of bzhwindtalker could withstand this huge force.
After my first sketches and measuring and calculating I started to make 3D CAD drawings
The first prototype of the frame will be made out of steel because it is easy to work on and also cheaper than aluminium
I will update my new constructions / drawings. It is very hard to calculate all those angles and notches on the tubes and i worked a long time to do the first drawings :?
But the basic drawings are there and I will continue soon.
Greetings from Austria
Jacob