While Sitting here watching my Sovol Zero print another part, I looked over at one of my DIY filament boxes and thought 
you know, those Humidity/Temperature sensors could look better…
Cheers,
-Mike
Quick little project for fun, 2-4 
hours…
Things you need: 
- Humidity/Temperature sensor - These are pretty common for the DIY filament boxes, you can get them dirt cheap in bulk from Ali, Amazon, etc. I used these: Small LCD Thermometer/Humidity Sensor
- A laser printer, not sure how ink printers ink will react if at all, try it and let folks know!
- Your favorite image editor, GIMP, InkScape, etc… Fair warning I have zero artistic
skills! - Flat blade screwdriver to pry open the case, and a good set of tweezers or small plyers for electronics to remove the LCD reflective backing, we are about to upgrade it!
- Your favorite drink!
Steps:
-
Start by opening the sensor module, it’s all snap together, and pretty straight forward. Remove the batteries, use the flat blade screwdriver to pry the back of the sensor off of the case and carefully lift out the circuit board. Next remove the black ring, note the notch placement inside of the case, it’s important. Once the black ring is removed, carefully press the LCD Display out with your finger from the front. It should come out without any trouble.
-
Peel off the reflective backing of the LCD panel don’t rush, sometimes isopropyl alcohol is needed to release the backing. The sensors I had did not use heavy adhesive and pealed right off.
Go slow and pick at a corner of the reflective material, it is paper thin. Watch out you don’t pick to deep and grab the LCD Display its just about as thin. Watch out for the rubber connector strip, do not soak it with the isopropyl alcohol!
Stopped for some fun nerd
transparent was all the rage at one point!
-
Measure the LCD Display so we know what size to make the logos, this will be the reflective material replacement.
LCD panel is 40 x 20mm (-2mm for connecting strip)
Case is 41 x 22mm good to know so you can expand the logo size a bit wider, but the LCD Display is what you want for the logo. -
Now print your favorite logos. The sensors display does not leave to much room, but it enough to mess with…
-
Insert you favorite logo, note the top of logo is the electrical strip side of the LCD Display, and reassemble in the order you took it apart, make sure to be mindful of the plastic that holds the LCD Display in and double check the logo placement. Install the circuit board, and press the plastic case back together. Insert the battery cover, and the batteries.
-
Turn your sensor over and enjoy your customized LCD Display, feel free to embellish yourself with your favorite drink! Cheers!
Fun note, LCD Displays are polarized, viewing angles will change the visibility of the logo and information on the LCD Display. It was difficult for my camera to capture the polarized views, but as your angle changes to the LCD Display, it “turns off” and “turns on” visually. Computer security screen/overlays also work the same.
