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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2021.10.07 18:56:47 (UTC+1)
Name: Charles Bonnici (Malta)
Comment:
I build this circuit and made a disk with 36 teeth and 36 spaces. All teeth and spaces are 4mm. Disk is about 90mm in diameter. I assembled all on wood board with the LCD, Push button the Arduino Uno. All worked perfect as you said. Now I am thinking of using this system to open a canopy. The accuracy is more than enough. How can I make the motor stop after example 300 counts. I thank you again for your kind assistance.
Me: All you must do is connect a motor through an H-bridge to your microcontroller and power one of the two input pins until the desired number of pulses is reached. Should not be too hard.
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Page: technics-physical-computing-digital-ruler_en.htm
Date: (UTC+1)
Name: Ali
Comment:
Hello. Can we use this ruler for three-axis lathe? What is the source code for three-axis?
Me: You must write the sorce code for a three axis machine, because I haven't.
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2019.03.01 06:57:55 (UTC+1)
Name: Jay
Comment:
Do you accept bitcoin donations?
Me: Sorry, I don't have any sort of crypro currency on my discs. I prefer hardware coins since they have a certain value caused by the metals used ;-)
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2018.02.08 20:41:25 (UTC+1)
Name: Satish
Comment:
Dear Sir,
This project is very usefull to my project.
just i want one modification I want preset length and ruler reach preset leaghth one output goes high
and it will reset by another input.
thanks
Me: Well, if you'd like to make changes on the software, you are allowed to do so. The source code is available as Download and the license is free.
I will implement that type of functionality some day, but for sure not quickly, because I have too many projects running...
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2018.01.22 20:21:15 (UTC+1)
Name: JR
Comment:
I really enjoy your videos and I learn so much! You have a great talent for innovation and teaching.
Thank you!
Me: You're welcome!
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2017.06.15 21:18:39 (UTC+1)
Name: Tristan
Comment:
Wunderbar ! that sounds like a really nice invention. Thank you very much for sharing the idea !
Me: You're welcome!
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2017.06.04 14:21:01 (UTC+1)
Name: Cgiff50
Comment:
Excellent useful makeshift project., both educational and very functional. You have the equivalent of a standing ovation from me on the level of detail, innovation, creativeness, and theoretical explanation to setup this project. Well Done!
Me: Thanks!
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Page: technics-physical-computing-digital-ruler_en.htm
Date: 2017.05.23 23:01:00 (UTC+1)
Name: Gene
Comment:
Hello Norbert.
Great example of Arduino and optical encoder, a little bit crude - I wish it will be more accurate. Can I suggest you way to improve this - attach linear optical encoder to you workpiece, say with magnets. Or make a movable caret that will measure linear movement and will also carrying workpiece.
Thanks
Gene.
Me: More accurate than half a millimeter for parts cut by hand? First of all you'll need a very good mechanics to get better results.