Thrust Testing Rig (for propellers)
thingiverse
A rapid calibration jig was created to measure thrust from various propeller blades. It utilizes kitchen scales as the measuring device. The weight displayed on the scales must be divided by three to obtain an accurate thrust measurement. To convert this value into Newtons, divide it by gravity (approximately 9.8 m/s^2). The equation is as follows: Force (N) = Weight (kg) / (3 * Gravity) Assuming a gravity of roughly ten (or 9.81 for greater precision), the calculation becomes: Force (N) = Weight (kg) / 30 To determine the lift capability of the propeller/motor combination, divide the weight by three rather than gravity: Lift Capability (kg) = Weight (kg) / 3 Keep in mind that using kitchen scales for this jig may not yield extremely accurate results. Nonetheless, it provides a suitable ballpark figure ideal for testing 3D printed propellers.
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