3D Printing - Adding enclosure temperature sensor

Another article related to OctoPrint.


Having around some DHT-22 sensors used on the fHelper MQTT project and seen a direct support of them for OctoPrint, I decided to use them to measure temperature and humidity of the enclosure, handled by OctoPrint.
In this article the steps to add the sensor to the System.

The idea is to have OctoPrint capable to monitor the enclosure temperature.
It is assumed OctoPrint running over a Raspberry Pi.

3D Printing - Slicers

A slicer is a program that convert a graphic file (typically in a STL extension) in a G-code file, capable to drive the 3D Printer.


It is a very important and critical part of the 3D printing process.

Android - how disable the Home button

Here a way to disable the Home button (but also the Back and Menu).

CAUTION !!
Possible undesired side effects !  Use at your risk !

It is assumed you know how to work on Android and I'm talking about !

3D Printing - Tests

After tests, finally found a decent slicer running on Linux and Mac : Ultimaker Cura, but I found the version 3.6.0 working much much better than the latest one (4.4.1)

Let see some print finally, after changing the bed calibration springs, re-calibrate the printer and cleaning up the printing area.

3D Printing - OctoPrint

Many 3D printers, including the one I choose, the Ender 3 Pro, can be autonomous, meaning you simply save the file you want to print on a SD card, insert it in the printer and start the print.

However is much better to be able to monitor remotely what the printer is doing and even load remotely the file to be printed.

OctoPrint allows to do so.

3D Printing - Ender 3 Pro USB powering problem

The  problem arise when the Ender 3 Pro is connected to a computer via USB.

The connection between the two is via USB and the connection bring also the power (+5V).

In my case the computer is a Raspberry Pi 4 running OctoPrint.