Large Emergency Button, Mushroom-Head Door Opener

🔴 EMERGENCY BUTTON – Printable Emergency Button (Big Red Button)

Do you want a real desktop emergency button? This 3D model is a stylized replica of the classic "Big Red Button", perfect for DIY projects, electronics, studio, gaming, or simply for show!

⚡ Key features:

• Iconic oversized red button design
• Robust 3-part structure:
  • Black base with mounting holes
  • Yellow top plate
  • Ergonomic red button
• Fully 3D printable
• Simple assembly (press-fit or optional glue)
• Internal space usable for:
  • Micro switch
  • Actual button
  • Arduino / ESP32
  • LED or buzzer

🔧 Possible uses:

• ON/OFF button for electronic projects
• Trigger for Arduino / ESP32
• "STOP" button for DIY machines
• Prop / studio decoration
• Fun desk gadget
• Controller for streaming or soundboard

🖨️ Printing suggestions:

• Recommended material: PLA / PETG
• Layer: 0.2 mm
• Infill: 15–25%
• Supports: NOT needed
• Print separately for each color (red / yellow / black)

💡 Maker's Tip:

You can turn it into a real working button by inserting:

• a micro switch under the button
• a spring for return
• or a capacitive touch sensor

The project includes two supports, one slide-in for other buttons or garage door openers and one for 16mm buttons like these:

https://www.amazon.it/Gebildet-Precablato-Impermeabile-Momentaneo-Campanello/dp/B083K2821B/ref=sr_1_8?__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91

I used these springs :

https://www.amazon.it/compressione-acciaio-Diametro-Lunghezza-2-5x28x25mm/dp/B0GHXZDDXT/ref=sr_1_20?__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91

But it can accommodate springs with a diameter of 28 or 38 mm and a height of 30 mm

I recommend springs with 1.5mm wire for a soft button press

Required :

• 2 M6x18 screws
• 2 M5x21 screws
• 1 M5x10 screw

It is recommended to print both the mushroom (button) and the base for the mushroom (button) at 45 degrees to achieve smooth surfaces