An Optical Filament Sensor That Actually Works June 28, 2022 07:03PM |
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Re: An Optical Filament Sensor That Actually Works July 02, 2022 11:22AM |
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Re: An Optical Filament Sensor That Actually Works July 02, 2022 04:53PM |
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Re: An Optical Filament Sensor That Actually Works July 02, 2022 07:28PM |
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leadinglights
Very nice. I like the use of a red LED as a sensor and the tiny PIC mcu. Is there any chance of a photo showing the optical path and perhaps the programme?
Mike
Re: An Optical Filament Sensor That Actually Works July 16, 2022 12:22PM |
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Re: An Optical Filament Sensor That Actually Works August 06, 2022 06:14PM |
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Re: An Optical Filament Sensor That Actually Works November 09, 2023 03:28PM |
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Re: An Optical Filament Sensor That Actually Works November 10, 2023 10:07AM |
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looxonline
Am I right in thinking that you needed to cut two slots in the guide tube at the base for the LEDs to shine through?
Re: An Optical Filament Sensor That Actually Works November 17, 2023 02:23AM |
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Re: An Optical Filament Sensor That Actually Works November 17, 2023 10:51AM |
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Re: An Optical Filament Sensor That Actually Works January 03, 2024 02:09AM |
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Re: An Optical Filament Sensor That Actually Works January 10, 2024 06:52PM |
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looxonline
What was the reliability like with movement detection. I notice that you are looking for even just a single value difference between the two averages. It seems like ADC noise alone may be able to generate that. I am struggling to understand how movement of the filament would produce a different value across the ADC when the filament tolerance is around 0.005mm diameter these days. Surely any difference in diameter would be far outweighed by circuit noise.