This is a fun and easy project that involves electronics, 3D printing and laser/CNC engraving.
This model supports fully open source workflow
CAD: FreeCAD
Laser-cutting: Inkscape or DXF2Gcode, Universal Gcode Sender
3D printing: Cura or Prusa Slic3r
3D printed base:
The base is designed to fit 3mm acrylic sheet. (+0.1mm clearance in design) 3 different lengths are attached.
V2.0 is for 15cm, V2.1 is for 18cm and V2.2 is for 9cm long acrylic sheet.
The CAD design was moved to FreeCAD to make it more accessible to everyone. It is fully parametric (see image of the table) so you can create any size for your specific sheet and LEDs.
V3 design has an in-built voltage regulator (AMS1117 3.3v) which allows using more common and cheaper 3.3v LED strips. It also includes a clip-in USB wire plug, so gluing the wire is no longer necessary.
V3.0 is for 15cm, V3.1 is for 18cm and V3.2 is for 9cm long acrylic sheet.
Acrylic sheet:
3mm Acrylic sheet is cut to size.
Laser Cutting:
There are 3 dxf files provided;
https://www.thingiverse.com/thing:3107831
NOTE: diode lasers cannot engrave transparent things, for that you need to paint the surface black (preferably water colour to wash off when done).
If you don't have access to a laser cutter or CNC you can use a multi-tool (Dremmel) and engrave manually with a printout under the sheet.
Electronics:
The base is designed for 9mm wide LED strip that slides in from the side. The strip is powered via USB or battery pack. The USB can be used from any old computer mouse or keyboard. It allows the lamp to be used from both computer port or phone charger as shown in the images.
Note: depending on voltage rating of your LEDs you might need resistors. I used 100 Ohms SMD on the strip. Or use V3 with the voltage regulator.
Assembly
V2
Solder the LED strip (with optional resistor) to the battery pack or USB. Slide the electronics into the base and fix with glue.
V3
Slide the plug onto the USB cable, then solder the regulator input side. Use a short piece of wire and connect the regulator output to the LED strip. Slide the electronics into the base and clip in the plug.
Updates:
Edit July 29 2022: More files and CAD model added with extra guidance
Edit Jan 21 2023: Base V3 model added
Have fun printing and building!
this file was imported from my other profiles (outdated versions):
myminifactory: https://www.myminifactory.com/object/3d-print-86572
thingiverse: https://www.thingiverse.com/thing:3734480
The author marked this model as their own original creation. Imported from Thingiverse.