Christmas Tree Lights - Modular and Rainbow style

by Alzibiff, published

Christmas Tree Lights - Modular and Rainbow style by Alzibiff Dec 1, 2013
21 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

20936Views 7355Downloads Found in Decor


What every Christmas tree needs are LIGHTS! Inspired by pauloricca's LED Christmas tree from back in 2009, (thing 1406), it was hollowed out, a mounting hole added and a base designed to enable me to string a number of these together after fitting a colour changing LED to each one.

The LEDs are widely available - and if four of them are wired in series, the set can be powered by a standard 12V DC plug-in mains adapter. As a set of 4 LEDs will only take around a total of 120mA, a mains adapter rated at 0.5A or more will easily cope with having four sets of them in parallel which is what I have done. (Photos show just three sets in parallel).


Each set of four lights requires four hollow Christmas trees, four stands and four LEDs. You can use whatever flavour of LED you like but my choice were the slow flashing rainbow type.

You will also need connecting wire, heat shrink tubing to cover the soldered joints and connector pieces to join one string of LEDs to the next set. (As well as to the 12V DC power source).

Wire the LEDs in series, bending the LED leads and pushing the wires into the groove underneath the stand. My wires were roughly 100mm long. Each set will also need two more wires through the grooves - one for the negative supply and a second for the positive. If you use wire colours other than the standard black and red, make sure that you note down which is which as you will destroy the LEDs if you wire them the wrong way round. (I took the opportunity to use wire out of my scrap box).

The first set of lights needs to connect to your power supply - use a DC plug which matches the DC socket on the mains adapter. The end of this first string needs a socket so that it can supply power to the next set. I used standard 0.1" crimp terminals. From then on, apart from the last string, you need power in and power out connectors. The final string only needs power in.

Check all your wiring before connecting any power and once you are happy, I suggest you test them one at a time.

Thanks to NumberSix who provided the idea and then helped me to learn some of the skills needed to produce this thing in Sketchup. He also suggested that I print the Christmas trees using the spiralise feature in my slicing program. This feature prints a single shell by continuous movement of the Z axis which is ideal for hollow objects.

The Christmas trees have a "normal', (not spiral), 0.5mm base and once that has printed, the spiral begins. If your slicer does not have such a feature just go for a single shell. The trees push fit onto the bases. My bases were printed in different colours - red, green, gold and black.

I have now included an alternative STL for the hollow Christmas tree with a 10mm hole in its base should you have problems slicing the first version which I uploaded .

More from Decor

view more

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

Great model! Comes out nice when printed with spiralization. I printed it in transparent plain PLA, the light shines through great!

Good to hear. Which slicer are you using? I ask because I have only dipped my toes into spiral prints, printing the usual vase type objects.


Comments deleted.
Dec 6, 2016 - Modified Dec 6, 2016
Simulatedbog545 - in reply to Alzibiff

I've been using Cura,and it seems to work just fine.

You can turn it on under:
Expert>Open Expert Settings>Spiralize Outer Contour

4 days ago - Modified 4 days ago
omniwatch - in reply to Simulatedbog545

The tree prints very nice. I like the leaning effect, it looks more natural. I printed the 10mm hole file but there is no hole.
I cannot find the Expert Menu on Cura 2.7.0. Can someone explain to me where to find it?

Thank you. I have an old version of CURA sitting on my PC - it has the spiralize settings from about the time this feature was introduced.

Thanx I found the spiralize setting. Makes the print much faster.

That's good but have you sorted out the missing hole problem? Very curious - I can assure you that there IS a hole there somewhere :-)

Can we have the blender file? Because I would like to create placeholders for the Christmas dinner with the names of my family over :)
thank you

The Christmas tree was derived from a design by pauloricca as described in my description so I only have the STL for that alongside a version which has been hollowed out. I designed the base bit but not in Blender. I am not too sure on how you would use these for placeholders but if your idea involves the base - let me know and I will try and upload an appropriate file exported from my CAD application. (Away from home at the moment, so may take a week or so).

ok, no problem :) i will ask pauloricca for the design :)

Really like this model. Is there any chance of including a version of the tree not leaning? I think the "forest" would look nice with a mixture.

Good shout but as I mentioned in the details bit, the tree itself is not my design. I like your thought though - might have a go at doing what you suggest.

so it lights up or it wireless

Yes, it lights up. No, it is not wireless - the wires are shown in the photograph.

really nice! what did you use to wrap the wires with? Can you give a part # for this? It makes it look so nicely finished

I had what I think is called "spiral wrap" which was 3mm diameter. It is the same stuff which a lot of RepRappers use to keep wires in place around the screwed rods on the triangle type Mendel and Huxley designs. In the UK it comes from a company called Maplin who sell a lot of electronic kits, components and gizmos. It is translucent and made out of polythene I think.

really beautiful trees