Remote Controlled Lawn Mower - Analysis - Wheel and motor
This article explores the wheel choices we have for the RC lawn mower.
Wheel choices
- Inflated wheels
- Solid wheels
Inflated Wheels
Pros
- Shock absorbing
- Gentler on the grass
- Tube and Tubeless options
Cons
- Hard to find exact size
- Fitment on to hub
Solid Wheels
Pros
- Hub and wheel comes as 1 unit
- Easier to source from old hoverboard/electric wheelchair
Cons
- Electric wheelchair motors and wheels may be expensive
- Shipping hoverboard wheels cost prohibitive forcing us to use second hand hoverboard wheels
- If the motor dies the wheel and motor needs to be discarded
- Prone to wear out faster than inflated tires
Motor Choices
- Regular DC motor
- BLDC - Brushless DC motor
Regular DC Motors
Pros
- Easier to source and generally cheap
- Simpler electronic driver circuits
Cons
- Not very efficient
- Tend to get hot
- Need to replace brushes at regular intervals
BLDC (Brushless DC Motor)
Pros
- Very efficient
- No Maintenance
Cons
- Complex and expensive driver circuits
Conclusion
Given the various choices and options available to me I chose to go with Hoverboard motors. I sourced two $50 hoverboards from Walmart which had tiny 6.5 inch. wheels. These were on the sale and the regular price was $80 each which made it an easy decision for me.