Simplest Dynamometer in the world

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Last time I have made a dynamometer using friction force with a metal plate. Today I will make a modification for more simple and easy use. It is the simplest dynamometer in the world using a 3D printer as I knew. The friction force can be adjusted easily with the double thread screw. Use the clockwise and counterclockwise thread, the adjusting process becomes very simple. You only need to rotate the screw the upper and bottom parts will move at the same speed but in different directions. They will keep the balance and make the friction force change smooth and homogeneous. The speed can be measured using a tachometer. You will only use several M3 balls and 4 M2X8 screws and 2 M2 screws and nuts. One long M3 screw can be changed to another long stick. https://youtu.be/GKP7OYOwWck

About the author:
Henry Wang
I am a former scientific researcher who usually worked in University and academic institutes. I am interested in making things using 3D printer. Since this April I worked alone at home. I am now focused on making improvement of household small things better use or invent some useful or dammy stuff which makes life happy. I will continuously upload my stuff here and upload videos on Youtube. Please check my youtube channel and subscribe. I will not fail you. Everything I designed has some unique new ideas which no one ever noticed yet. I will share it with you and wish you also share your experience with us. Make our world a better place. Hope you will have a nice day. subscribe to my channel http://youtube.com/tubeunderdeveloped

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