MOTOR SIZING AND BATTERY SIZING - C-Division-2022-2023-Odd/Repo-04 GitHub Wiki

1)Mass of the body =0.0025kg Radius=10cm=0.10m Acceleration due to gravity=9.8m/s μ=0.6

F=mg F=0.00259.8 F=0.0245N

Torque=T=Fr T=0.024510 T=0.2450 kg-cm

Considering factor of safety FOS=1.5

Final Torque=TFOS T=0.24501.5 T=0.3kg-cm By comparing with table of specification for 0.3kg-cm.We need servo motor of specification tower pro MG995 Operating voltage=4.8-7.2 v stall current =1200 mA Number of MG995 servo motor required = 5 servo

2)Mass of the body =0.0055kg radius=15cm=0.15m Acceleration due to gravity=9.8 m/s μ=0.85

F=mgμ F=0.00559.80.85 F=0.0458N

Torque T=FD/2n [n=0.9] T=0.04580.3/20.9 T=0.0137/1.8 Torque-T=0.0076

Considering factor of safety FOS=1.5 Final torque=TFOS =0.00761.5 =0.0115kg-cm

By comparing with table of specification for 0.0115 kg-cm ,We need DC motor of specification 100 rpm-12v center shaft DC geared motor Number of DC motor required=1

Sl.no	Components	Quantity	Voltage required	current drawn
1	servo motor	5	5v	1200mA
2	DC motor	1	12v	600mA
3	Aurdino	1	5v	40mA