The smart home promises automatic convenience, but setting up a system that works well often involves unexpected difficulties. You can find the main components like sensors, hubs, and voice assistants easily, but the parts you need to upgrade your setup are often expensive, poorly made, or impossible to find.
3D printing gives you a cheap way to fix these issues. This lets you build parts that fit your house accurately, and the materials for each component usually cost less than one dollar.
Doorbell wedge mount
Get the perfect angle for your front porch
A doorbell wedge mount is an angled backplate that tilts your smart doorbell up, down, or to the side. It adjusts the camera angle if your wiring makes the device face a brick wall or the street instead of your porch. While you can buy generic mounts from retailers like Amazon, they often don’t fit your specific model or provide the right angle for your entryway. Just make sure you use a reliable printer, not a cheap one.
3D printing is a practical, inexpensive way to make a custom mount for your home. By using adjustable files, you can print wedges at many different angles. For example, a 5-degree downward tilt can compensate for the angle of your home’s siding.
If your wiring is in an awkward spot, you can print a bracket with a 10 to 30-degree pivot to improve the field of view, or even go up to 90 degrees. Many designs include multiple sets of screw holes so you can reuse existing holes in your wall.
Since this mount stays outside, you should print it using ASA filament because it handles heat and UV rays well. Since a spool of quality filament costs about $20 to $30 per kilogram, the few grams of plastic used for a mount only cost a few cents.
Smart speaker wall mount
Move your assistant off the counter
A smart speaker wall mount holds devices like an Amazon Echo or Google Nest Mini. It keeps your voice assistant at a good height for audio and clears your counters. Keeping a device off flat surfaces protects it from spills. Since speakers function better when they aren’t on crowded tables where they might struggle to hear you, mounting them at chest or head height helps the microphones pick up your voice clearly.
You can print your own mounts cheaply and customize the design. It takes a few cents of plastic and usually less than two hours to print a durable mount for your specific speaker generation. You can create minimalist designs that match the color of your device instead of buying generic store options.
These mounts keep your speaker stable and safe. Since the hardware is anchored to the wall, it won’t slide around or get knocked over by accident. You can also print under-cabinet mounts for kitchens where counter space is limited. This lets you set timers or follow recipes without getting the device messy from cooking spills.
Robot vacuum threshold ramp
Help your vacuum cross uneven floors
A robot vacuum threshold ramp is a sloped wedge designed for rooms with uneven floors or thick carpet dividers. It has an incline that lets the vacuum climb over bumps so it does not get stuck. Printing these transition pieces stops you from having to rescue the vacuum from the same spot every day.
Steep ledges often trick a vacuum’s drop sensors into thinking there is a cliff, which causes it to stop its cleaning cycle entirely. If you are looking online for a model, many are parametric, so you can adjust the width, height, and slope in programs like Tinkercad to fit your door. You can also scale the dimensions in your slicer software.
Making the height about 18.5 percent of the depth creates a 10-degree incline that vacuums can climb without trouble. For wide doorways, you can print modular pieces that lock together with dovetail joints. You can combine straight and curved sections to fit specific widths like 32, 56, or 75 centimeters.
Use PETG filament for these ramps since it handles impacts well, though standard PLA also works. A 20 percent infill with a grid or gyroid pattern provides enough strength for the vacuum. Print with thicker layers, like 0.2mm or 0.3mm, to create a rough surface for better traction.
Corner bracket for motion sensors
Better placement for more accurate sensors
A corner bracket is an angled plate that lets you mount smart sensors in the corner of a room. This placement gives the sensor a wider field of view to track movement while keeping the hardware tucked away. Most sensors come with limited mounting options, like adhesive tape that does not work well for every room layout.
3D printing lets you make mounts for specific corners, doorframes, or ceilings for a cleaner look. These brackets cost only a few cents to print. You can find free models online for brands like Aqara, Sonoff, Shelly, Wyze, and ThirdReality. You can print mounts with a specific tilt, like 30 degrees, to point the sensor where it is needed without using tape or putty.
Sensors work best when placed high in a corner to cover a large area and avoid interference from items like windows or heaters. You can even customize these mounts with blinders to block the sensor’s view in certain directions. This is helpful for pet owners because you can block the bottom of the sensor’s vision so your cat or dog does not trigger the lights at night.
Microcontroller enclosure
Give your DIY electronics a professional look
A microcontroller enclosure is a box for smart home components like ESP32 boards or air quality sensors. Building these devices from scratch often creates a mess of wires and exposed circuit boards. A 3D printed case hides the electronics and gives them a clean look.
Many designs you’ll find online have cutouts for USB ports, ventilation, and LED lights. Printing your own cases lets you tailor the design for your hardware with features like snap-fit lids or cable channels. You can print stackable versions to keep multiple boards organized in a small space.
These enclosures protect delicate parts from dust and damage. Since you can design cases with mounts for cooling fans or vents, you can keep heat from an ESP32 chip away from temperature sensors like a DHT22.
A case also makes it easier to manage your hardware because you can update the firmware or swap boards without unplugging everything.
Use your 3d Printer to solve your problems on a budget
You do not have to rely on awkward, expensive, or non-existent accessories to improve your system. The small projects we have covered prove that a small amount of filament and time can give you great results. This turns a smart home from a collection of off-the-shelf compromises into a personalized living space. Being able to produce hardware for under a dollar gives you the freedom to do all of these projects at once. So no need to choose, just pick an order to do them in.
- Build Volume
-
250 x 210 x 220 mm
- Printing Speed
-
170mm/s
- Brand
-
Prusa
- Max Hot End Temp
-
290 °C / 554 °F
Stephan is the sports journalist for the Maple Grove Report.
