Strav's blog

OMG - I've been looking for an affordable IP based KVM for YEARS!  It seems every couple of years I search in vain but this year, I turned up a relatively new project based around a Raspberry Pi.  I've built up a couple of these now and they are fantastic!

Open and cheap DIY IP-KVM based on Raspberry Pi (Github)
Pi-KVM - Open and cheap DIY IP-KVM on Raspberry Pi
Community FAQ
GPIO
PiKVM ATX control
PiKVM Download
Flashing the OS image
Reddit
VNC
Tailscale VPN

Example Builds
Install Pi-KVM with both USB and CSI in a clear case that does not require a splitter board.
Multi-port pi-kvm KB hotkey switching and mass storage emulator using AIMOS KVM

YouTube Videos
Pi-KVM - DIY CHEAP Raspberry Pi KVM over IP Prototype Version 3 Review!
DIY Raspberry Pi KVM-Over-IP Under $60 with Pi-KVM

4/8 Port Switches
Hardware mod to AIMOS 4 port switch

Cases
Pi-KVM RETRO Case for CSI-2 C779 Bridge w/ OLED Display Screen
PI-kvm v2 case with optional oled display and 20mm fan
Pi-KVM v3.3 Plastic Case for 3D printing
Raspberry Pi Zero Case - Snapfit, Screwless, inc. camera slot
Raspberry Pi Zero Pi-KVM Case
Pi-KVM USB Power Blocker Case

Misc
Raspberry Pi 4
Perdeas Pi-KVM ATX Controller Board
PiKVM Switch Multiport Extender Review

I finally pulled the plug (LOL) and got a Tesla Model S.  This page contains all sorts of links to Tesla related information.

Pre-purchase research
Here are the MUST do’s before buying a used Tesla
Here’s Every Tesla We’ve Tested So Far
How to find out what options a Tesla has

Charging
Supercharger Map
Plugshare

Free Lifetime Supercharging
NOTE: These are good ways to initially check if a car has free lifetime transferrable supercharging (if it doesn't, these will identify that).  The ONLY way to be 100% certain, however, is to call Tesla service and have them verify.  They officially will only do this for the owner on the associated account in the Tesla system.
Tesla Free Unlimited Supercharging—Does it Transfer to New Owners?
Tesla Free Supercharging (Unlimited): How to Check if You Have It!
Easy way to verify Free Supercharging

Diagnostics
Tesla wanted him to pay $22500 to replace a battery pack, we did it for 75% less!
Scan My Tesla
Scan My Tesla for Android 2.0 instructional video
Scan My Tesla (OBDII) Install
Tesla Model 3 - OBD2 Setup and Scan My Tesla Overview

Service & Repair
HOW TO: Replace Headlights in Refresh (2016+) Model S
Window won't go up
Repairing Tesla Window Regulators | Gruber Motors
How to fix a Tesla Model S Power Window Regulator
Tesla Model S Window Repair - Regulator replacement with Dorman 740-603
How to calibrate windows in a Tesla!
Headlamps (SAE-to-Global) Retrofit
How to setup a laptop to use Tesla’s Toolbox 3
Tesla Toolbox 3 Service and Diagnostic Software
Toolbox 3 setting up computer before starting subscription
2012-2020 Model S Service Manual
Service Mode

Dash Cam
2017 Tesla Model S 100D Dash Cam Install. Blackvue DR650S-2CH
Tesla Model S | Blackvue DR750S- 2CH Dash cam | Complete Install
BlackVue DR750S-2CH installation in 2017 Tesla Model S
The Most Advanced Dashcam Yet - Vantrue N4 Pro
Dashcam install - use OBD port or hardwire to fuse panel?
Picking a Hardwire Kit
5-Level Adjustable Hardwire Kit

Fog Lights
Replacing Model S Fog Light.. Help!!
Retrofit Front Fog Lights

Frunk and Trunk Power Lift
Power FRUNK!? | Electric Frunk kit install
SmarTesla
Tesla Model S frunk kit (for 2016-2020 single hood latch) power lift electric frunk kit
Tesla Model S power lift electric rear trunk kit 2013-2016
DIY Power Lift gate for Tesla Model S Walkthrough Video
DIY Power Lift gate for Tesla Model S Walkthrough Video
Power lift gate DIY possible?
CoZero

Fuses
Fuse box location and diagrams: Tesla Model S (2013-2016)
Tesla Model S (2016-2018) fuses

Miscellaneous
Useful browser websites while driving
A faster link to Fullscreen content in Tesla browser
Teslogic - Mobile Dashboard
Fixing Tailgate/Liftgate Rattle on Tesla Model S
Stuck Rear Lift Gate on your Tesla Model S? Check out how to get it open again!
Guide: DIY Interior Refresh Project - Beige to Charcoal (Remove Pillar Trim)

I have a Coleman Saluspa hot tub.  This post has some links and information related to the hot tub.

How to get rid of algae, mold and mildew in your hot tub
Coleman saluspa pump leak
Fix Your Coleman Saluspa For Under $15! | Repair Guide
Replacing My Coleman SaluSpa Pump with a Tahiti Pump
eBay - Seal Kits

The bed on my CR-10 printer is definitely not flat.  It seems to be higher around the edges then dip down in the middle.  For small prints, it's OK but the larger ones are more troublesome since the level changes enough to mess up the first layer.  

I found out that there is a bed leveling sensor that Creality makes for the CR-10 called the BLTouch and they only run about $40.  I bought one and tried to follow the included instructions to install it.  Unfortunately, all the website links in the documentation resulted in 404 errors.  I wrote to Creality's support departmant and got a response back but it was very generic and still did not have include necessary information such as where to download the firmware or the progisp program used to flash the firmware to the memory of the CR-10.  

I used a mix of information from a number of sites to get it installed, install new firmware to work with the BLTouch and figure out how to configure it properly.  

These are the links that Creality support sent:

CR-10 ISP Wire brush firmware tutorial
Service tutorial CR 10 online print
Service tutorial CR 10 the BL Touch installation

And here are a number of other relevant links.  The first two were the most helpful.

Installing BLTouch Auto Bed Leveling On The Creality CR-10 3D Printer
BLtouch for any 3D printer - Comprehensive step by step guide
Creality BL Touch Auto Bed Leveling Sensor Installation Tutorial
Marlin 2.0.x firmware - Add preheat profile?
Help! After installing BLTouch, cannot get nozzle close enough to bed to print.

I ended up using the TH3D Unified 2 firmware and compiling my own firmware.  

TH3D CR-10 Firmware
Creality BL Touch Probe Mount Offsets (Metal Bracket)

When all is said and done, these are the steps I used to calibrate the Z-offset:

Use the terminal window in Octoprint.

Send the following commands:

M502 ;reset printer settings to default
M500 ;save default settings
G28 ;home head to middle of bed
G1 F60 Z0 ;move printer head to absolute zero position (defined by EEPROM settings)

Lower Z axis in .1 increments until print head lightly touches piece of paper between print head and bed.  Go back to home screen and note the position of the Z axis.  Enter that number in the M851 command below for +/-x.x

M851 Zx.x ;Z offset - Note that for negative numbers it will be Z-x.x
M500 ;save default settings

Pi-KVM runs on Arch and when I was having issues getting NUT to work properly on Raspbian/Pi, I ended up installing Arch on the Pi as well and ultimately on my HP Envy x360 laptop.  Here are some links to various resources I used dealing with Arch in those contexts.

Arch Linux: Full Installation Guide - A complete tutorial/walkthrough in one video!
Installation guide
How to search for a package in Arch Linux
Arch User Repository (AUR)
How to get grub2 to remember last choice?
GRUB
Network configuration/Wireless
'whatprovides' equivalent option for pacman
How can I prevent Windows from overwriting GRUB when using a dual-boot machine
Yaourt is Dead! Use These Alternatives for AUR in Arch Linux
Raspberry Pi
Raspberry Pi 3
Raspberry Pi 4
How to enable SSH root login on Arch Linux 2017
How disable AUDIT messages