Make such a machine to run balls is very simple - you want to cut out of plywood original details (you can do it in a homemade CNC machine, and with a hand jigsaw) and collect in the design using PVA glue.
At the end of this article you can download drawings marble machine, as well as admire on the video.
Material of construction of this marble machine - plywood on the track went 3 mm thick, while the remaining 5 mm.
Balls with a diameter of 8 mm, their source was the old 205 bearing.
About the engine.
The motor is used servo was purchased in the model shop, where such is called servo.
Servo was moved improvement, it was removed from the management fee and a variable resistor, they need to manage special signal, instead, the engine is connected directly to the power supply. Servo motor operates in a voltage range of 0-6 volts, so you can adjust the desired speed or setting the control resistor to the base to adjust their speed of construction.
In addition to a gear reducer servos were removed constraints on the gears that would become possible to rotate the output shaft in a circle (normally, the rotation angle of 90-120 degrees).
See how the balls run in marble machine.
The archive on the link below you will find drawings marble machine in DXF format. They are primarily focused on manufacturing on CNC Milling cutter, but you can use an ordinary jigsaw for cutting.
- Download drawings marble machine can be here
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