Oil pump jack (motorized)
thingiverse
This is a HO scale (1/87) motorized oil pump jack miniature. It features a gearbox that slows down motor power through a series of gears to move the counterweight efficiently. The motor is powered directly from a wall outlet via a DC adapter, with a PWM DC motor controller managing the pump speed for optimal performance. This miniature can be printed using either FDM or SLA 3D printers. However, I highly recommend printing it in SLA altogether for superior results and reduced post-processing requirements, particularly for the "samson post". You can watch the pump in action at https://bit.ly/2NYaf6F. PS: I designed several different "Horse Head" models for the pump, giving each one a unique appearance on the actual picture.
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