Open Hardware Tree Topper / Decor w/ Neopixel LED's

I was inspired by tgsparky77's version of JP's tattoo ( https://www.prusaprinters.org/prints/5147-josef-prusas-tattoo ) and decided to make a WLED and neopixel powered tree topper, and I have a fascination with individually addressable LED's, so why not?!? I have also included a base option so the topper can be used as decoration on a desk or shelf (the mounts are removeable so that it can do both jobs!).  I printed all of the parts out of PETG because decorations tend to be stored in areas that can get fairly warm, so PETG should reduce the chance of deformation while in storage.  This can be made as a single or double-sided topper.  

Print settings as follows -

0.4 nozzle, 0.2 layer height, no supports needed

• Face - Printed in clear PETG and Black PETG.  I sliced these with 2 perimeters, 2 bottom layers, 3 top layers, octagram spiral for top and bottom fill patterns and 50% gyroid infill.  This produced 2 layers of gyroid infill between the bottom and top layers, and the combination performed the best at diffusing the light of all the options that I tried.  I then did a color change in Prusaslicer for the very 2 top layers, which are the graphics.  Print 2 faces in clear/black graphics for a double sided topper, or one in clear/graphics and the other in an opaque option for a single sided.
• Body - Printed in Black PETG.  Sliced with 2 perimeters, 2 bottom layers, 3 top layers, and 10% infill.  I tried to use as little plastic as possible to reduce weight of the topper, but can be changed to your preference.  When it is time to install the electronics, the Wemos D1 Mini snaps into place, but is still removeable, if needed.
• Lid - Printed in Black PETG.  This was sliced with 3 bottom layers and 3 top layers with 15% infill.  These can be changed to your preference though.
• Mount - Printed in Black PETG.  Sliced with 2 perimeters, 3 bottom layers, 3 top layers, and 15% infill.  You will need 2 of these, and they only go completely in one way.  The ridges on the side to help keep wire ties in place should face out to the sides.  Wire ties seemed to work the best to secure the topper to the tree.
• Desk mount pieces (Optional) - Print one of each, in settings of your choice.

Electronics -

• I used a Wemos D1 Mini to control the LED's using WLED ( https://kno.wled.ge/ ).  There is a lot of information for help and it makes programming the Mini super easy, right from the browser.
• I used WS2812B Individually Addressable LED strips with 60 LED's per meter, purchased on Amazon.  I cut a section of strip with 13 LED's for the internal loop, and another 13 spaced out around the external perimeter of the internal area.  It is a lot of wiring, but worth it, and I went this route to reduce power consumption and allow it to run from most basic USB chargers and not have to have a higher wattage dedicated power supply.
• I used GPIO5 (D1) and GPIO4 (D2) for the LED's, one for the outer perimeter of 13, and the other for the inner radius of 13.
• In WLED's LED settings, I assigned each strip as a starting point of 0 and end of 13, with a total at the top of the settings of 13 LED's, so that they would work in unison, or they can be configured differently to alter the effects, if desired.
• 5V and ground are right there on the D1 Mini, so that is where I connected the power to the strips.

Assembly -

• The Wemos D1 Mini snaps into the electronics compartment with the USB port on the bottom, showing through the rectangle opening at the bottom of the topper.
• I soldered wire right to the Mini's board and routed them through the opening into the LED compartment.
• The lid will snap on, but make sure the wires are all sitting below the level of the pockets that the mounting stakes press into.  The lid is removable by slightly prying in the slots at the lid bottom to help it pop off.
• The faces are glued on.  I used 3D Gloop PET glue, but others should work.  I am not sure if super glue will work with PETG very well, and it does have a tendency to leave a white residue when it cures.
• The mounting stakes are NOT glued in, so they can be removed and replaced with the optional stand, if desired.

This will produce many different colors and lighting effects, and adds a lot of pop to the holiday tree!  Enjoy!

12/13/21 - revised desk base and stand to corrected sizes.