A few days ago, I worked on the motor bracket. I also decided to make it bigger. I made is bigger because on the original bracket, I had one of the motor screws that was under a spacer. I had to remove the spacer to remove the screw. Since it is bigger, I have not problem now.
First I had to draw everything on the computer, I printed it to be sure I had the perfect fit. This is the new scooter. Since my bracket is bigger I had to drill new holes in the frame. I took the piece of paper on glued on the frame.
I wanted to be aligned so I turn on my LED flash light.
Here are the new holes.
I did the same thing here, I glued down the drawing and punch out the holes.
Those are the bottom and top of the bracket.
The only concern I have is that I am wondering if I am loosing the natual air flow of the motor by putting the motor bracket right in front of the motor vent holes. I was thinking of drilling holes but need to be sure I will not make my new bracket fragile on the edge.
On the right side of the spacer you can see washers, there are 3 washers, they help me to adjust the depth of the motor so I can aligned the belt.
I am thinking of adding this fan to cool down the motor. I bought this 7 blades turbine fan on hobbyking. It is a little bit big put should do the job. I will need to machine a bracket to hold it to the motor.
I might try other solution like a 5V PC fan.
Today I tested the motor and it works! I test the 30$ motor and at high speed, it was making this very high pitch sound. I will probably need to adjust timing and frequency directly on the brushless controller.
I am concerned about the heat generated by the motor while free running. It was running at full speed with no load for a 2 minutes and it get warm. So a fan will be needed to ensure the magnet health.
Steps before first run
- Add belt tensionner
- Enlarge frame
- Wooden deck
- Throttle wiring
- Attach fan to motor