Space Invader WLED and Neopixel LED Lamp

Component list

• 1x NodeMCU with WLED
• 46x Neopixel LEDs
• 4x M4x20mm countersunk screws
• 4x M3x10mm screws
• 2x M3x45mm screws
• 6x M3 nuts
• 4x M4 nuts
• Perforated circuit board
• 1x powerswitch up to 3A
• 1x socket for barrel connector suitable for power supply 
• 1x power supply 5V 3A  
• 2x pin header and socket header
• Lots of cables ;)  

Printing notes

• Filament: PLA  
• The holders for the LEDs should be printed in white.  
• The covers for the LEDs must be printed in a semi-transparent material.  
• The body should be printed in black or another opaque material.  
• Layer heights:
  LED holder and LED cover: 0.1mm
  Rest 0.15mm

Assembly instructions

First, print all parts.

Then glue the following parts together:
body_left
body_middle
body_right

Two M3 nuts must be inserted into the middle element.

Now the individual Neopixels must be soldered. The LEDs require a maximum of approx. 2A. The cable cross-section should be selected accordingly. I decided to work with thin braid (more flexible) and distribute the power supply across several lines. The control line determines the order of the LEDs (can be adjusted later in WLED) and should be selected so that it looks cool ;). I recommend inserting all LED holders upside down into the body. This makes it easy to measure the cable lengths and determine the correct alignment. I divided the Space Invader into individual sections and soldered 8 to 10 LEDs at a time. I then joined these together to form a chain.

The Neopixels are attached to the back of the holders with hot glue.

The cables can also be glued to the LED holders and are routed to the outside at the back.The cables can also be glued to the LED holders and are routed to the outside at the back.

Then turn the holders over and glue on the LED covers.

The covers must be glued to the joints on the ears and legs.

The remaining parts must then be assembled.

I recommend soldering a base board for the NodeMCU. The board must have the following dimensions to fit into the socket: 100 mm x 65 mm.I recommend soldering a base board for the NodeMCU. The board must have the following dimensions to fit into the socket: 100 mm x 65 mm.

Insert all nuts into the base of the base.
The M4 nuts are very tight—it is best to tighten them with a screw. Use a washer to avoid damaging the base. Insert all nuts into the base of the base. The M4 nuts are very tight—it is best to tighten them with a screw. Use a washer to avoid damaging the base.

Plug the LED element onto the cover of the base. Pull all cables through the opening.Plug the LED element onto the cover of the base. Pull all cables through the opening.

Screw the LED element to the cover. Use the M3x45 screws for this.Screw the LED element to the cover. Use the M3x45 screws for this.

Attach all cables to the circuit board.Attach all cables to the circuit board. Insert the circuit board and secure it with the brackets. Insert the circuit board and secure it with the brackets.

Screw the switch and the socket for the power supply to the base.Screw the switch and the socket for the power supply to the base.

Screw the cover onto the baseScrew the cover onto the base.