Category Archives: Knowledge

CNC Build – Stupid cables

Posted on July 24, 2017 by jimbo

Connecting the new sensor cable is tough — it’s a “real” RS232 cable, so the female end has two protruding female studs, so that two cables can be bolted together. This totally doesn’t work with the way I attached the … Continue reading →

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CNC Build – Courage is the first virtue

Posted on July 23, 2017 by jimbo

Well, as per normal in the way my life and hobbies go, it took two months to get back to the CNC once I’d determined that the cables fit properly. I decided that I was going to push forward today, … Continue reading →

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Julia Set, a fractal

Posted on January 24, 2017 by jimbo

c = -0.79 + 0.15i generated with a Python script (150 lines)

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Excellent Pot Roast

Posted on December 18, 2013 by jimbo

Pot roast should be one of those fairly easy to cook dishes, but mine usually turned out fairly dry and overcooked. So, the last time that I tried it, I hunted Google for some tips, and came across this gem. … Continue reading →

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Rainier Watch

Posted on November 20, 2013 by jimbo

After a couple weeks of clouds, rain, and wind, last night was clear and cold under a waning gibbous moon. Temperature this morning was 28 degrees. We are in the “too cold to rain” part of the year, which I … Continue reading →

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Give us this day…

Posted on April 13, 2013 by jimbo

This represents 3/4 of my second attempt at baking bread from scratch. Sorry, one loaf had to be sacrificed to the wolv– I mean, family — before I could get enough peace and quiet to get a photo taken. 🙂 … Continue reading →

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Bees, Year 2 begins

Posted on April 13, 2013 by jimbo

We got our new crop of bees this morning; my wife drove down in the middle of the night to meet the bee guy at like 6 in the morning or something. I slept through that part, so I’ll spare … Continue reading →

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Ray Tracer : in the weeds

Posted on March 29, 2013 by jimbo

I’ve spent the past week fighting minor math errors in my ray tracer. In order to confirm that my surface normals were being calculated correctly, I added boxes (axis aligned only at this point) as an additional primitive type. That … Continue reading →

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CNC Feeds and Speeds

Posted on February 9, 2013 by jimbo

Now that I have router speed control, it’s time to start thinking about the actual cutting speeds I should be using, rather than just running everything full-out. I searched around, and this site had a pretty good rule-of-thumb for calculating … Continue reading →

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iOS Development Workflow

Posted on February 6, 2013 by jimbo

I just had my yearly stress-out about my app expiring. Apple warns you for about a month before the thing expires, and of course I wait until the last minute every time. Here’s the workflow that worked, first try, once … Continue reading →

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