February 12, 2026
Description
This model is a LED base for a Heart sculpture.  The LED base is designed to work with 3mm flashing LEDs. The flash is built into the LED so nothing more than a 2032 battery is needed.  I used a combination of red and yellow to get the desired look - see attached gif.  The base is wired with 24ga bell wire with the insulation stripped off. The bell wire is threaded through the base and into the battery area as the contacts.  See diagram for wiring.  The LEDs are put into the provided holders and press fit into the base connecting to the bell wires. The long lead of the LED is the positive lead.  You will need to clip the leads of the LEDs fairly close so they don't interact with the battery holder.
Red LEDs:Â Amazon.com: Chanzon 100 pcs 3mm Blinking Red LED Diode Lights 1.5Hz Flashing (Diffused Lens Frosted Round DC 2V 20mA) Bright Lighting Bulb Lamps Electronics Components Indicator Light Emitting Diodes : Industrial & Scientific
Yellow LEDs:Â Amazon.com: Chanzon 100 pcs 3mm Blinking Yellow LED Diode Lights 1.5Hz Flashing (Diffused Lens Frosted Round DC 2V 20mA) Bright Lighting Bulb Lamps Electronics Components Indicator Light Emitting Diodes : Industrial & Scientific
Printed in PETG with .4 nozzle and .2 layer with selective supports (see gcode file)
Note: gcode file is for a Prusa Mini with a Bondtech extruder.  Do not use on a standard Mini.  Gives good idea where I placed organic supports.
I've updated the model to use a flame that can be shared so this is now a derivative.
My portion is licensed freely.  I'd use the beerware license if it was available.
License:
Creative Commons — Attribution — Share Alike