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Viktor Petrenko

@viktor_vrp • 3,331 subscribers

Engineering robotic arms for cost-effective automation. Mechanical|Electronics|Process - engineer. SimpleAutomation. https://t.co/Cmmkr5pZvu @fdotinc

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Repeatability test 3. Final test — pushing the limits.

Repeatability test 3. Final test — pushing the limits.

198,330 Aufrufe

Accidentally ran an accuracy test on our MicroFactory robotic arm. I had to disassemble the base for some improvements. To keep testing consistent for our already-trained models, I quickly built an improvised setup to recreate the previous calibration. After removing and reinstalling the motors, I was able to restore their position within 0.002°. Positioning repeatability was at least 0.01 mm at 300 mm reach. This isn’t a full accuracy test — a proper one would require more planes and indicators with resolution at least an order of magnitude better than the measured values. But anyway, this accuracy is sufficient for all of our assembly tasks.

Accidentally ran an accuracy test on our MicroFactory robotic arm. I had to disassemble the base for some improvements. To keep testing consistent for our already-trained models, I quickly built an improvised setup to recreate the previous calibration. After removing and reinstalling the motors, I was able to restore their position within 0.002°. Positioning repeatability was at least 0.01 mm at 300 mm reach. This isn’t a full accuracy test — a proper one would require more planes and indicators with resolution at least an order of magnitude better than the measured values. But anyway, this accuracy is sufficient for all of our assembly tasks.

15,014 Aufrufe

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Repeatability Test 1. Checking the mechanics by replaying a recorded move: the frame goes from the holder to a random spot on the table and back, with no model to compensate for errors. The sequence includes some fairly complex gripping and handling.

Repeatability Test 1. Checking the mechanics by replaying a recorded move: the frame goes from the holder to a random spot on the table and back, with no model to compensate for errors. The sequence includes some fairly complex gripping and handling.

Viktor Petrenko

231,086 Aufrufe • vor 1 Jahr

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