Author: Maurice Ruckman

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LED How to Determine Positive and Negative

On the physical LED, the longer lead (or leg) of the LED is the anode. The cathode is marked on the rim of the LED body with a flat area shown in the diagram. Another way to tell which lead is the anode and which is the cathode is to look at the two plates at the end of the leads inside the body of the LED.

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Self-Service reset for your network password is here

Message from Global Information Security and Compliance Services (GISCS):

It's always best to reset your network password when you first receive the system email announcing it is about to expire, but if you don't get to it in time, you can now reset an expired password without contacting the IT Service Desk and get right back to business.

Here's how: On your personal computer or mobile device (you'll be locked out of your work account on company computers/devices), go to https://aka.ms/sspr and follow the steps to create your new password. Be sure to update your password on mobile devices as well, and write down the site's address so you'll have it when you need it. Also note, you can use this self-service tool to reset your password at any time.
Important requirement

Before you use the new password reset tool, you must have registered for at least two Azure authentication methods (instructions were emailed in November): Microsoft Authenticator app and mobile phone.

If you haven't had a chance to register:

  • Review the Azure MFA Registration user guide.
  • Complete the process as instructed in the guide.
  • Contact the IT Service Desk to activate your self-service password reset capability online, or by phone at x44357 or 844-584-4357 (toll-free).
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Installing OctoPrint

Latest Installation Done on Windows 10

Refer: https://octoprint.org/download/

OctoPrint.org - Download & Setup OctoPrint

Ender 3 OctoPrint settings

Refer: https://howchoo.com/g/ntg5yzg1odk/using-octoprint-with-the-creality-ender-3-3d-printer

While you're setting up OctoPrint, use the following settings for your Ender 3:
Printer settings

Form factor: Rectangular
Origin: Lower Left
Heated Bed: Yes (checked)
Heated Chamber: No (unchecked)
Width: 220mm
Depth: 220mm
Height: 250mm
Axes: Default
Custom Bounding Box: No (unchecked)
Nozzle Diameter: 0.4mm
Number of Extruders: 1

Connection settings
Serial Port: /dev/ttyUSB0
Baudrate: AUTO

Plug-ins

Refer: https://plugins.octoprint.org/plugins/prettygcode/

Older Instructions

I'm using my old Raspberry Pi2 for this Installation. Also, you can backup and restore your settings too, in order to update your Micro SD card being used. I'm doing this to upgrade from an 8GB card to a 16GB card.

Refer: https://all3dp.com/octoprint-setup-raspberry-pi-guide/

Setup Guide to OctoPrint on the Raspberry Pi 2 | All3DP

Step #1 Install OctoPrint Image, first by installing Raspberry Pi Image

Then choose your "Storage" media and then click "WRITE"

Refer: https://www.raspberrypi.com/software/

imager_1.6.2_amd64.deb

Now run "Imager", and choose "Other specific purpose OS", OctoPi

The installation has changed a little bit, since it was originally created, update this file now:

sudo gedit /media/mruckman/boot/octopi-wpa-supplicant.txt

Uncomment the lines following this comment, and enter your SSID and Password for your home network

## WPA/WPA2 secured

Step #2 Eject and Insert Micro SD Car back into the Raspberry Pi 2
You will need to use the Wireless USB Dongle Too

Step #3 Logon to the Raspberry Ii2 via SSH

ssh pi@octopi.local

Step #4 Complete Setup

Password is "raspberry" without the quotes.

Change your password

passwd

Once you are through the passwd tool, run “sudo raspi-config” and hit return on the first option, expand file system, to allow OctoPrint to use the entire space on the SD card for your print files, updates and log files. Then hit tab twice to select “Finish”, and confirm the reboot.

sudo raspi-config

Choose "Advanced Options", "'A1 Expand Filesystem, Enruse that all of the SD card is avilable" and hit [Enter] and then "OK"

Then choose, finsh and accept reboot prompt.

Step #5 Octoprint Ender 3 Profile

Ender 3 OctoPrint settings

Refer: https://howchoo.com/g/ntg5yzg1odk/using-octoprint-with-the-creality-ender-3-3d-printer

While you're setting up OctoPrint, use the following settings for your Ender 3:
Printer settings

Form factor: Rectangular
Origin: Lower Left
Heated Bed: Yes (checked)
Heated Chamber: No (unchecked)
Width: 220mm
Depth: 220mm
Height: 250mm
Axes: Default
Custom Bounding Box: No (unchecked)
Nozzle Diameter: 0.4mm
Number of Extruders: 1

Connection settings
Serial Port: /dev/ttyUSB0
Baudrate: AUTO