Christmas Tree Water Fill With Level Indicator

I hated always crawling under the tree to

a) Check whether or not I needed to add water
b) Checking to see when the water reservoir was full

SO, let's make something that will help us with both!

PARTS

• Float Switch that signals at the top and bottom of its travel
• Dishwasher tubing
• Cable Ties
• 2-Color LED (T5)
• Small switch (I used a C&K MDS series; https://www.digikey.com/product-detail/en/c-k/MDS6500AL02PS/CKN9566-ND/2000404)
• LR44 Batteries
• 2-cell LR44 holder (something like this: https://www.printables.com/model/194251-2x-lr44-sr44-ag13-357-battery-holder)

 I made the funnel spout at an angle as the leftover hose I had wanted to constantly tilt to the side.  I made the barb on the funnel to match the hose I had on-hand, so YMMV.  Also with the LED, I tweaked the hole size for that since my printer wasn't perfectly calibrated.  Some glue will help keep it into place.

Settings/Material

I bumped up the walls until it was a solid infill with 0.2mm layers.  Didn't need supports if you print it with the funnel opening on the build plate.  Used eSun PLA+ material.

Assembly

The wiring was pretty simple, since I planned on using the coin cell batteries (LR44); no resistors! I used a NO switch between the batteries and the LED to minimize power usage and not drain the batteries. I soldered and covered all the connections with heat-shrink tubing. I didn't really secure the wiring to anything inside the funnel's recess; I just shoved it all in there, so I could easily change the batteries as needed.

The wiring was simply cable tied to the extra dishwasher tubing I had laying around. Feed the tube down the tree, snap the holder onto one of the tree stand screws, and VOILA! I no longer have to crawl under the tree!

A bonus is that my kids like to water the tree now; how about that!?