Halloween Coffin

thingiverse

My favourite electronics blog had a manual to build a shocking halloween toy. Unfortunately, it is made of plywood. But hey, we have 3D printers, lets go! Took me a lot of hours to make a decent Fusion360 construction, but it is worth it. The coffin in action: https://www.youtube.com/shorts/7WrrfCwW81I Here is a link to the blog article (in german): https://www.az-delivery.de/blogs/azdelivery-blog-fur-arduino-und-raspberry-pi/halloween-2022-der-suessigkeitenwaechter There is everything you need - except the 3D parts. Slicer settings: Mounting holes of ultrasonic sensor could use supports, but prints also well without. All other parts print without support. Infill 20% "Lightning" works well for all parts. Reducing top-, bottom and wall layers works well, saves filament and time. See pictures how to place the hinges with superglue. Microcontrollers Arduino, ESP32, ESP8266, Raspberry Pi all would work. Sound is optional, I used a DFPlayer module and a speaker. To run it with only one 18650 cell, my selfmade board "UniMini" is recommended. If someone ist interested in that useful universal mini board using ESP8266, here are the schematics and PCB files: https://github.com/Pontifex42/UniMiniESP8266 Wiring is obvious if you read the code file "PinConfig.h", so I did not add a schemtic. These files are for free, but I please you to post a "make" with photo here if you built it.