Powder Coating Experiments: Round 1

I was intrigued by the idea of powder coating the parts of the microscope arm project, as well as other items.  So, I decided to do a little bit of shopping to get outfitted with a beginner setup.  I started with the somewhat ubiquitous Craftsman powder coating gun, which seems to be available on closeout from ...

Epic Builds: Articulated Stereo Microscope Arm 2

I’ve wanted a stereo microscope in my home lab for ages.  In the last couple of years, it’s become an increasingly urgent need as I’ve hit the age where my eyesight is beginning to change.  Soldering and inspecting fine-pitch SMD work is becoming difficult without the aid of magnification.  So, I finally picked up a ...

Benchtop Multimeter Repair: ebay Bargain Hunt

I picked up a broken Agilent U3402A Digital Multimeter on ebay for a good price, taking a gamble that I’d be able to fix it.  I put together a video where I tear the meter down, diagnose the problem, and come up with a working hack to fix it, all in “real time.”  It’s a ...

Embedded Hacking Weekend 2

I’ve gotten back into the ARM Cortex M3 embedded stuff (yes, again), specifically with the NXP LPC1768 chip.   I’ve had this Blue Board development board hanging around for a couple of years, and I’ve made a couple of attempts at getting some of the open source toolchains (e.g. CodeSourcery Lite) working with the Eclipse IDE ...

Cortex M3 Articles

Happened across a pair of articles giving a good overview of embedded development with the Cortex-M3. Part 1 covers the processor architecture while Part 2 gets more into the nitty gritty of tool chains and such.

Measuring with Software

Every so often you may need to measure something small and inconvenient.  Specifications with physical dimensions may not be available to you, so you need to actually measure the item you have at your disposal.  For example, if you want to experiment with a harvested electronic component and put it onto your own PCB, you ...

In-Depth CNC Conversion Electronics Overview 2

I converted my milling machine over to CNC back in late 2009.  For most of the time since then, I’ve avoided the project of properly finishing up the electronics that run the machine.  Last winter, I gutted the electronics of the machine, redesigned the system, created a number of circuit boards, and set about revamping. ...

Mold Making & Resin Casting

My friend Matt shared a great link, called the Geurrilla guide to CNC machining, mold making and resin casting.  I’m mostly up to speed on the CNC topics it covers, but I find the mold making and resin casting parts to be pretty exciting.  I have long figured that I am well positioned to try ...

CNC Electronics Enclosure Work Commences… 1

Santa’s workshop was busy today.  I finally got some motivation and time to continue work that I started a year ago, but really, has been a nagging task since day one of getting the CNC up and running.  I have the machine up and running enough to make parts, with all of the controlling electronics ...

HOWTO: Tormach TTS Conversion Kit Installation

Here is a quick how-to video I put together using some really old footage I shot in May of 2010.  It shows how the Tormach Tooling System Conversion Kit is installed onto a Maritool brand ER25 tool holder, converting it for use with my CNC milling machine.  This allows tool heights to be measured and ...