Blog Archives

3D Printed USB Strain Relief and Student Project Boards for Arduino UNO and Breadboards

In planning to teach my students how to build circuits and program Arduinos, I decided to mount Arduino UNOs and small breadboards on 6″ long 2×6 blocks.  This should help keep the two together and since they are being used

Posted in Random Technology

Organizing BLF Keys on VVX Expansion Modules in FreePBX

I set up a FreePBX server for my school and most of it went smoothly.  We have almost 50 Polycom phones and Endpoint Manager made it very easy to assign the phones to the right extensions and put the right

Posted in Random Technology

Provisioning Polycom Phones with DHCP Option 160 in pfSense, Meraki, and Mac OS X Server 10.11 El Capitan

I started installing a new phone system for work.  It’s replacing the Comcast phones with a FreePBX server and new Polycom phones.  The great thing about this setup is that you can provision a large number quickly as long as

Posted in pfSense, Random Technology

Adding Filament Runout Detection to an Anycubic Kossel with Marlin 1.1.8 and BIQU 3D Filament Detection Module

I have several Anycubic Kossel 3D Printers that work great for the price ($180-320 depending on the model).  One issue I’ve run into is when a reel of filament gets low, I can’t reliably print with it for fear of

Posted in Random Technology

Fixing a Cheap 3d Printer Power Supply with a Blown NTC Thermister

My older style Anycubic Kossel Pulley didn’t come with a heated bed or a power supply large enough to run it.  Although the newer Kossels Anycubic is making (as of early 2018) come with both, I had to purchase these

Posted in Random Technology

Hornady Lock n Load AP Primer Out Alarm

After a reloading session and running out of primers several times, I decided to build an alarm for when the primer tube runs out.  Each time it happened, I missed the fact it was empty for a case or two and

Posted in Random Technology, Shooting

Monitoring pfSense WAN Uptime with Uptime Robot

I have had a few problems with my pfSense firewalls losing their internet connection and not finding out about it until I get a panicked call or text from someone.  Nine times out of ten this is caused by the ISP

Posted in pfSense, Random Technology

Proxmox Virtualization Server Part 1: AMD Athlon 5370 Mini-ITX

Setting up a cheap and low-cost home virtualization server for Proxmox. Background I have used Proxmox at work for setting up small servers and liked the fact that it was free and seemed to “just work” without much hassle.  Currently there

Posted in Random Technology