Plan C | Prototype Wireless 3d Printer Safety Shutoff System V2 @Plan-C | Uploaded December 2017 | Updated October 2024, 1 hour ago.
drive.google.com/open?id=1MB9dNS2N_iwNdTej-e-g2qGKHVph0d30
Second iteration of work-in-progress wireless shut-off system for any 3d printer. Now knocked-up on veroboard, 'upgraded' with a simple oled display and running off the 3d printer's own power supply. The code is attached. It is rough but seems to work well enough.
The idea is to shut off power to the printer via a hacked wireless socket if the hot-end and/or heated bed temperatures exceed specified limits or smoke is detected. This could happen if, for example, a mosfet or solid state relay were to fail short and the printer firmware could not turn them off leading to thermal runaway.
This is basically a second, stand-alone cpu and set of thermistors to keep an eye on the temperatures and cut power if there is a problem.
Video shows a quick overview and a couple of test runs. More details on how it is put together are in previous video if wanted:
youtu.be/zEVMvAsRgy8
Schematics and code of previous version here:
drive.google.com/open?id=1nXcDwCVmPUcDuk1CiX6P3krTGfCGPx34
This is an experimental project and is not intended to be a replacement for keeping an eye on your printer.
Good luck all
drive.google.com/open?id=1MB9dNS2N_iwNdTej-e-g2qGKHVph0d30
Second iteration of work-in-progress wireless shut-off system for any 3d printer. Now knocked-up on veroboard, 'upgraded' with a simple oled display and running off the 3d printer's own power supply. The code is attached. It is rough but seems to work well enough.
The idea is to shut off power to the printer via a hacked wireless socket if the hot-end and/or heated bed temperatures exceed specified limits or smoke is detected. This could happen if, for example, a mosfet or solid state relay were to fail short and the printer firmware could not turn them off leading to thermal runaway.
This is basically a second, stand-alone cpu and set of thermistors to keep an eye on the temperatures and cut power if there is a problem.
Video shows a quick overview and a couple of test runs. More details on how it is put together are in previous video if wanted:
youtu.be/zEVMvAsRgy8
Schematics and code of previous version here:
drive.google.com/open?id=1nXcDwCVmPUcDuk1CiX6P3krTGfCGPx34
This is an experimental project and is not intended to be a replacement for keeping an eye on your printer.
Good luck all
