Saturday, February 16, 2019

3D Printing air flow for Ender 3 Extruder

First piece done. I have decided since I updated the firmware on the ender 3 to TH3D to provide thermal runaway protection. The stock Ender 3 does not have this in the firmware. Why? That is a good question. But it does not matter now. I had to first take my arduino and connect it to the 3d printer internally since the Ender printer did not have a boot-loader. So I had to program the arduino to program the boot loader to the board. Once I did that I was able to disconnect the arduino and hook directly to the Ender with the laptop and then load up the TH3D firmware which provides the thermal runaway protection. So lets see if printing the new airflow extruder pieces improves the print.

SO this is time-lapse comes from octoprint which runs on a Raspberry PI that I have connected to the printer. It takes this cheap 3D printer and puts it on the web in my house. I can now use an SSH tunnel into my home to monitor/stop/start print jobs. Octoprint also streams my prints to youtube so I can watch them from anywhere since I don't want to put my 3d printer on the web for the whole world to hack.

This is the first piece which is for the fan that cools the actual hot end. I am now printing the air duct for where the filament comes out the nozzle.

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