Tube Notcher Templates
While watching South Main Auto, my favorite youtube channel, I saw a Eric O use a windows program called tubemiter to produce a printed template for notching a tube. I…
Tools
Analog Discovery 2 Breakout Box
I had made a similar Breakout for my Picoscope but with the AD2 I can use it power supply output and not have to add a battery inside. The nice…
Upgrade to an old Cantenna Dummy Load
A few years go I made a Cantenna Dummy load. I filled it with mineral oil left over from some woodworking projects and it;s worked great for a long time.…
Temperature Sensor for the CO2 Laser Cutter
More K40 Mods.....
A Display Panel for my CO2 Laser
A Display Panel for a K40 CO2 Laser
Secondary power supply for the K40
I’ve added so many features to my laser and they’re all powered by a salvaged PC power supply. Even have 5V & 12V jacks on the back to run the…
Loose Power Plugs on my K40 plus Lights & Air Assist Nozzle
I noticed the manufacturer tried to hot glue the mains jacks in place. Really shoddy. So I 3D printed a locking frame… Since I only needed one power outlet I…
More CO2 Laser Water Pump Features
So far the new water pump has been working great. I decided to add a water level cutoff switch. I used a two step switch so I would get a…
CO2 Laser Crosshairs
I do most of my engraving using a center origin. Its so easy to line up on a cnc machine with a nice pointy bit. Not so easy on the…
Intelligent CO2 Laser Cutter Water Supply
I really didn’t like using a fountain pump for a laser water supply. I’ve had too many fail in water fountains to trust one to a CO2 laser. I had…
Upgrading a K40 for Engraving
I decided to swap my K40 controller for a GERBIL from awesome.tech. I considered the Cohesion 3D too. I’ve been using GRBL CNC controller with a few custom tweaks to…
Blynk Board IOT
I wanted to use a Sparkfun Blynk Board for a remote temperature sensor. I made a little shield. luckily the pin spacing matches a protoboard. And I 3D printed a…
CNC Pendant Code Test
I Finally got around to testing the code. I wired up a matrix keypad to a Leonardo. I used this cheat sheet of Mach3 keyboard shortcuts. I mapped the X…
MIT App Inventor in QST Amateur Radio Magazine
I just got the latest issue of QST Magazine and saw an article on making Amateur Radio Android App using the App Inventor. This seems to be turning up everywhere…
Android OBDII Tool
After playing with AI2 for a couple of days and making simple apps to test different features I wanted to try to make a useful tool. I decided on an…
AI2 – the MIT App Inventor for Android
Last week my bus broke down on the highway. I took the time to check out whats new on instructables and I found a stereo remote control app made with…
Meter Face Design Software
I picked up some nice meters and even though I don’t do much with analog I can still use these with Arduino’s and PWM. I needed an easy way to…
OBDII Breakout Board
Sometimes I need to work on a car’s PCM but dont want to go out to the garage. I made a little breakout board so I can run it on…
PT Surplus Kingston – Rhinebeck Car Show Trip
We had really great weather for our trip to P&T Surplus in Kingston and then to the Rhinebeck Car show Here’s a small sampling of what I found. More great…
CNC Pendant
I wanted to make a small jogging pendant for my CNC machine. I saw these at the local Radio Shack closing sale. Simple matrix layout. Comes with a printable face.…
Simple Plating or Etching Power Supply
I threw together this simple power supply for electroplating, anodizing, or etching metal. There’s really not much to it so I used a cheapie electrical box from Home Depot A…
Component Tester
I picked up this little component tester off eBay for $15. Its a quick way to test parts as I assemble boards. I found a coaster for it on the…
Canal Street is gone but there’s PT Surplus.
All the radio shops along Canal are long gone but up in Kingston is a little gem called P&T Surplus. They have a high turnover rate so don’t expect the…
CNC Jack Feet
There are some decent small CNC machines out there but they all come with these cheap CNC Jacks guaranteed to destroy the bed the first time you use them. Those…