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Inductive light: 5 steps (with pictures)



"Inductive light" is an inductive charge (similar to a smart phone or clock "cable-free" charger) light which "automatically" lights when removed from the charging base and "extinguishes" when it returns to the charging base. [19659002] The base unit contains an inductive transmitter and coil and a 12 mm diameter with 3 mm thick neodymium magnet.

The light unit contains an inductive receiver and coil, a lithium polymer battery, a lithium polymer battery, a 6 mm diameter with 2 mm thickness neodymium magnet, a normally open swivel switch and a flashing LED.

When the light assembly is removed from the base unit, the neodymium magnet in the light unit activates the reed switch and illuminates the LED. When the light unit is returned to the base unit, the neodymium magnet in the base unit changes the magnetic field of the neodymium magnet into the light assembly, which deactivates the reed switch and turns off the LED. Since the charging system utilizes air purge induction which is not as effective as cable charging, this lamp extinguishes the light when the light unit is returned to the base unit for charging.

I bought the inductive charging system from Adafruit which indicates the system will work from 9 to 1

2vdc. In operation at 12vdc, the inductive charging system generates heat which may be excessive for most PLA filaments. With an IR thermometer, the temperature of "Base, Cover.stl" was measured at 56 ° C (about 133 ° F) using a 12VDC power source. If you decide to use a 12VDC power source, I recommend that you print "Base, Cover.stl", "Base.stl" and "Lamp, Base Interface.stl" with Ultimaker CPE + or corresponding higher temperature value filaments than PLA. 19659002] And, as usual, I probably forgot a file or two or who knows what more, so don't hesitate to ask when I make many mistakes.

Designed with Autodesk Fusion 360 and Meshmixer 3.5.474, sliced ​​with Cura 4.1 and printed in Ultimaker PLA and CPE + filaments on an Ultimaker 2+ Extended and an Ultimaker 3 Extended.


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