Introduction: Recently, some netizens asked how to determine the multi-rotor wheelbase. I would like to take this opportunity to briefly introduce the calculation method of the four-axis six-axis eight-axis wheelbase. Everyone has better methods and suggestions to communicate in the message area.
Points to note on wheelbase design:
1. Ensure that the blade does not interfere when it rotates.
2. Each motor is placed on a circle.
3. If the spacing between adjacent propellers is too small, it will have an adverse effect on aerodynamic efficiency.

figure 1
Figure 2 shows the minimum wheelbase obtained when the propeller size is fixed and the distance between the two propellers is 0.
Sin45°=r*2.54/L
D = 3.59 * r
(Note: r is in inches. If you don't understand the definition of the propeller size, you can get back to the "7" in the background of the drone public number to learn about the propeller.)

figure 2
Figure 2 shows the minimum wheelbase obtained when the propeller size is fixed and the distance between the two propellers is 0.
Sin30°=r*2.54/L
Get L=5.08*r
(Note: r is in inches. If you don't understand the definition of the propeller size, you can get back to the "7" in the background of the drone public number to learn about the propeller.)

Points to note on wheelbase design:
1. Ensure that the blade does not interfere when it rotates.
2. Each motor is placed on a circle.
3. If the spacing between adjacent propellers is too small, it will have an adverse effect on aerodynamic efficiency.

figure 1
Figure 2 shows the minimum wheelbase obtained when the propeller size is fixed and the distance between the two propellers is 0.
Sin45°=r*2.54/L
D = 3.59 * r
(Note: r is in inches. If you don't understand the definition of the propeller size, you can get back to the "7" in the background of the drone public number to learn about the propeller.)

figure 2
Figure 2 shows the minimum wheelbase obtained when the propeller size is fixed and the distance between the two propellers is 0.
Sin30°=r*2.54/L
Get L=5.08*r
(Note: r is in inches. If you don't understand the definition of the propeller size, you can get back to the "7" in the background of the drone public number to learn about the propeller.)

image 3
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