Tag Archives: robotics

dual sensor test rig photos

Posted on August 1, 2012 by engineerzero

That completes the hardware set-up for the dual sensor test. Now onto the software test phase. (Psst — the circuit has one glaring flaw, which I have since corrected. Can you spot it in the photos?)

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Dual sensor test rig

Posted on July 30, 2012 by engineerzero

This week I’ll be testing a new screen-reading protocol for Grisbot, involving two sensors. For that I’ll need a test rig. It will be contained in a box — Pop Tarts is the prime candidate — to be held up … Continue reading →

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Robot Revision

Posted on July 27, 2012 by engineerzero

Grisbot continues to evolve as I learn more about how everything goes together. According to my count, on the right is Grisbot Design #5 in Sketchup. It’s a little bit shorter, and about an inch wider than before. I think … Continue reading →

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Grisbot in Acrylic, Assembled (sort of)

Posted on July 26, 2012 by engineerzero

It looks nice in this picture. But there are big problems. I won’t show the video; it’s way too embarrassing (and I’m wondering how I got the robot to turn so precisely a few months ago!). Even though I trimmed … Continue reading →

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Shortening Servo Wires (aka ‘Cables’)

Posted on July 25, 2012 by engineerzero

My robot looked so nice in Sketchup, but that’s because I omitted the wiring. As you can see from the above photo, the servo wires just don’t fit even though I’ve trimmed them once already. I also had to solder … Continue reading →

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Post Laser Cut Checkfit

Posted on July 18, 2012 by engineerzero

The first laser cutting for Grisbot went smoothly and the blue acrylic is beautiful. Now let’s do a checkfit as the Sketchup design encounters the physical world. Here are the pieces snapped together: No problem here. The pieces come together … Continue reading →

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Grisbot to be laser-cut (a guided tour)

Posted on July 17, 2012 by engineerzero

Finally, the Grisbot’s acrylic casing is being laser-cut, possibly even as we speak. Here is a guided tour in Sketchup of what may actually come to be by the end of this week, starting with the front view: The ruler … Continue reading →

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Laser Cutting the Test Box

Posted on July 11, 2012 by engineerzero

Here was the test box as designed in Sketchup: Here is what the SVG file looks like: And after a visit to StudentRND, here is the laser cut box in MDF and acrylic: You’ll note that I’m only using two … Continue reading →

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Grisbot in Acrylic

Posted on May 31, 2012 by engineerzero

Here’s Grisbot in baby-blue acrylic. I was hoping to laser-cut it tonight at StudentRND but after getting into the design work I realize that I probably won’t be ready until next week at the earliest. At any rate, at least … Continue reading →

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Grisbot II design

Posted on May 29, 2012 by engineerzero

This is a double-decker design which: (1) secures the servos to the chassis (with bolts/screws not shown) (2) renders the breadboard more accessible (3) uses dual sensors This one probably won’t be built, but it’s on the way to something … Continue reading →

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