-
Archives
- January 2018
- October 2017
- September 2017
- August 2017
- July 2017
- May 2017
- January 2017
- April 2014
- December 2013
- November 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- May 2011
- March 2011
- February 2011
- November 2010
- September 2010
- August 2010
- July 2010
- June 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- February 2009
- October 2008
- September 2008
- August 2008
- July 2008
-
Meta
Monthly Archives: March 2012
Wireless Arduino programming
That was really cool. There are times when you end up doing something hardcore and not realizing it until it happens. There are other times when you set out to do something hardcore, and you are just amazed when it … Continue reading
More bathroom scale madness
I got the bathroom scale circuit logging data to an SD card tonight. The Adafruit logging shield came in handy again. I had to work through a number of issues; in particular, the sd card in the shield was dead, … Continue reading
CNC – Super-PID
I got some time in the shop today and decided to test out the axis accuracy of the new CNC. I still have tuning to do; you definitely can’t run the router through wood at the same speed as you … Continue reading
Hacking a bathroom scale
I decided to keep closer track of my weight. As a geek, that means some kind of spreadsheet or database, and as a programmer, the thought of having to enter day manually seems wrong somehow. So the obvious next step … Continue reading
CNC – more small tweaks
I had just a short session working on the CNC today. I moved the router downwards in the mount so that I could reach the collet nut. This makes getting at the button more difficult, but nothing a flat screwdriver … Continue reading
CNC – gross calibration
I needed to figure out the problem with racking in X (you can see it if you look closely at the video). Turns out that my initial suspicion was correct; the sprockets had been twisted relative to each other while … Continue reading
Posted in Electronics, Making, Woodworking
Tagged calibration, CNC, Hall Effect switches, Super-PID
Leave a comment
CNC Build, Day 40 – ready to cut
All that was left to do before I can start cutting is mounting the router and cleaning off the table. I put the router in place, which went very smoothly. Then I got the clamp bolts drilled and installed. Easy … Continue reading
Eye-Fi — easy Arduino internet access?
The Arduino has multiple ways to get online, from ethernet shields to ones with built-in RJ45 jacks. Then there’s all the Xbee / Bluetooth type stuff or even the USB-to-serial bridge, if you are OK involving a PC. But “easy” … Continue reading
Posted in Computers, Electronics, Knowledge, Making, Technology
Tagged Arduino, Eye-Fi, SD card
Leave a comment
CNC Build, Day 39 – The birth of a new machine
I now have a 4′ x 8′ CNC machine in my woodshop. After picking up hose clamps on Saturday, I got the Y axis chain installed right away. I decided to get X installed next, which was a bit involved … Continue reading
CNC Build, Day 38 – decommissioning the 2×4
I got in just a short session tonight, but it was emotionally significant — I finally reached the point in the build of the 4×8 machine that I needed electronics, so I pulled the stepper motors (and Z axis screw) … Continue reading