Discussion Overview
The discussion revolves around whether a motor with a torque rating of 6.5 kg/cm is sufficient to power a small go-cart carrying a total weight of approximately 45 kg at a speed of 6 km/h. The context is a personal project rather than an academic assignment.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant questions the adequacy of a 6.5 kg/cm torque motor for the specified weight and speed, suggesting that the torque available at a 1:1 ratio would be insufficient.
- Another participant calculates the power output of the motor, concluding it to be around 13W, and compares this to typical power ratings for kids' and adult carts, indicating that the motor is too small.
- A suggestion is made to consider a 500-1000W scooter motor, along with the necessary battery and controller specifications.
- One participant corrects the power output calculation, stating it is actually 9.4W based on a different RPM rating, and compares it to a replacement motor rated at 170W, which is noted to be more powerful and cheaper.
Areas of Agreement / Disagreement
Participants generally agree that the 6.5 kg/cm motor is likely insufficient for the intended application, but there is disagreement regarding the exact power output and the implications of that for the project.
Contextual Notes
There are unresolved assumptions regarding the efficiency of the motor, the impact of rolling resistance, and the specific requirements for the go-cart's performance.