Christmas Tree Water Fill With Level Indicator

prusaprinters

<p>I hated always crawling under the tree to</p><p>a) Check whether or not I needed to add water<br>b) Checking to see when the water reservoir was full</p><p>SO, let's make something that will help us with both!</p><p><strong>PARTS</strong></p><ul><li>Float Switch that signals at the top and bottom of its travel</li><li>Dishwasher tubing</li><li>Cable Ties</li><li>2-Color LED (T5)</li><li>Small switch (I used a C&amp;K MDS series; <a href="https://www.digikey.com/product-detail/en/c-k/MDS6500AL02PS/CKN9566-ND/2000404)">https://www.digikey.com/product-detail/en/c-k/MDS6500AL02PS/CKN9566-ND/2000404)</a></li><li>LR44 Batteries</li><li>2-cell LR44 holder (something like this: <a href="https://www.printables.com/model/194251-2x-lr44-sr44-ag13-357-battery-holder">https://www.printables.com/model/194251-2x-lr44-sr44-ag13-357-battery-holder</a>)</li></ul><p>&nbsp;I made the funnel spout at an angle as the leftover hose I had wanted to constantly tilt to the side. &nbsp;I made the barb on the funnel to match the hose I had on-hand, so YMMV. &nbsp;Also with the LED, I tweaked the hole size for that since my printer wasn't perfectly calibrated. &nbsp;Some glue will help keep it into place.</p><p><strong>Settings/Material</strong></p><p>I bumped up the walls until it was a solid infill with 0.2mm layers. &nbsp;Didn't need supports if you print it with the funnel opening on the build plate. &nbsp;Used eSun PLA+ material.</p><p><strong>Assembly</strong></p><p>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.</p><p>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!</p><p>A bonus is that my kids like to water the tree now; how about that!?</p>