Rechargeable Base for Lithophane Moon/Planet Lamp - ⌀75mm

This is a rechargeable base with LED light for the ⌀75mm Lithophane Moon/Planet lamps by FritzPeppone. 

It can be recharged on any standard USB-C charger in a bit less than 3 hours.
(No fast charge on that one, sorry. If you find a module that does that, let me know.) 

Runtime depends on the brightness level: 8 hours on max, 16 hours on medium, 68 hours on low. 

With all parts available, assembly should be done in less than an hour. It requires some basic soldering skills to solder all the wires to the circuit board.

/!\ You can technically solder the battery directly to the circuit board without using a connector, but I advise strongly against it. The solder points are very close together. I don't take any responsibility if you short the battery and set your house on fire.
In fact, you follow (or don't follow) any of the assembly instructions entirely at your own risk. 

Bill of Materials

• This model:
  • Lamp base (3D printed)
  • Lithophane socket (3D printed)
  • Lamp base cover lid (3D printed)
     
• ⌀75mm Lithophane (3D printed from here)
   
• Circuit board (e.g. this one from AliExpress)
• LED light (e.g. this one from AliExpress)
• Rechargeable LiPo battery, 805030, with JST plug (e.g. this one from Amazon)
• JST battery connector (e.g. this one from Amazon)
• M2.5x4 screw
• M2.5 nut
• M2.5 washer

Assembly

1. If not already done, print the parts of the Lithophane base.
   
   I used PLA, 0.4 mm nozzle, 0.15 mm layer height, Octagram spiral for top and bottom layer infill. No supports needed.
    
2. Align the LED light with the studs of the Lithophane socket and press it in.
   
   No glue should be needed. If you get the alignment wrong, use a small screw driver or similar to push the LED light back out through the center hole.
    
3. Thread the wires of the LED light through the center hole.
   
   
    
4. Shorten the wires of the LED light to about 3 cm and solder them to the circuit board.
   
   The wires should go in on the face side of the circuit board, the blank ends should come out of the back side.
   If unsure about the length, make a fit check: Insert the Lithophane socket and the circuit board into the Lamp base and find the right length for the wire. Give it a bit of wiggle room to make sure you can still assemble everything when the wire is soldered to the circuit board.
    
5. Shorten the wires of the JST battery connector to about 1.5 cm and solder them to the circuit board.
   
   Also here, the wires should go in on the face side of the circuit board, the blank ends should come out of the back side.
    
6. Solder one of the wire ends from the JST connector that you just cut off to the through hole of the circuit board marked "TOUCH".
   
   This is a good  point to do a first function test. Connect the battery to the JST connector. The LEDs should light up and react when you touch the TOUCH wire. If all is well, disconnect the battery again.
   
   
    
7. Make sure any wires sticking out of the backside of the circuit board are less than 0.5 mm long. Cut them off, if needed.
    
8. Install the Lithophane socket and the circuit board in the Lamp base. Use the soldering iron to melt the studs and secure the circuit board in the lamp base.
   
   Use some superglue to fix the socket to the base, if you have it at hand. If not, the socket will also be kept in place by the Lithophane, but the glue makes changing the Lithophane later easier.
   
   
    
9. Shorten the TOUCH wire as needed. Attach it to the wall of the Lithophane base using the M2.5 screw, washer and nut.
   
   The wire should go between the washer and the nut. It's a bit fiddly.
    
10. Attach the battery and place it in the Litophane base.
    
    If you want, use some hot glue to fix the battery in place, but it should not be needed.
    
    
     
11. Close the Lithophane base using the cover lid.
    
    Make sure to get the orientation right. The cover plate should be flush with the edge of the base.
     
12. Screw on the Lithophane.
     
13. Done. Tap the screw to turn the lamp on and adjust brightness.