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Tag Archives: grisbot
Grisbot Bill of Materials
How much do the materials of the robot cost? Costs not included: laser cutting service, switch, labor for servo conversion and pre-soldering (if any), hardware (ie bolts and nuts).
Mini Grisbot in action
Preliminary test of my robot.
Mini gris on a mini breadboard
Here is the wiring diagram for the mini gris mini breadboard. As soon as I post it, I’ll realize there’s something wrong. So we may as well get it over with.
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Tagged breadboard, grisbot, minigris, robot, robotics, wiring diagram
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Grisbot test rig
When I finished assembling this test rig on late Tuesday night, I sat back and stared and realized that maybe I’ve actually accomplished something. Such a weird feeling! The test rig is mounted on a small kitchen chopping board that … Continue reading
Mini Grisbot with tabs and slots
Here’s an expanded view of mini grisbot. I tried to learn from previous experience and incorporate design changes accordingly. Indeed, this design is probably going to change as well. Just so we’re clear, minigris is a very small robot:
Mini Grisbot in Sketchup
It’s about three inches long by two and a half wide. Driven by two micro servos, controlled by an Atmega328 microcontroller. I think I’m about ready to put in slots and tabs and take it to the laser cutter.
Continuous rotation micro servo
Here are two Hextronik HXT900 microservos which I have modified for continuous rotation. These will provide the propulsion for the latest version of Grisbot. HXT900s are about the cheapest microservos out there. I’m planning to buy mine at Hobby King … Continue reading
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Tagged continuous rotation, grisbot, hxt900, micro servo, servo
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dual sensor test rig photos
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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Tagged arduino, cadmium sulfide, grisbot, photoresistor, robotics, test rig
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Dual sensor test rig
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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Tagged arduino, cadmium sulfide, communications protocol, grisbot, photo resistor, robotics, sensors, test rig
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Robot Revision
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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Tagged acrylic, grisbot, laser cut, revision process, robotics
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Engineer Zero 