drag knife on 3d printer

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2021/4/23 Add more functions to 3d printers is a topic in my recent project. I have added a multi-pen plotter that can print color images easily. Now I try to add a drag knife to it. I have no experience so I first try the commercial one to learn how the knife works with my own eye. The adjusted screw can adjust the force of the spring. I use a spring from a ballpoint pen this time. It is quite soft. But since the linear motion bearing is not smooth as I expected, the result is not good. Some reason I already know. Mostly it is caused by the linear motion ball bearing is not smooth enough since I chose a cheap one to test. I will make some modifications to get better results. More information on YouTubehttps://youtu.be/vd97QWA045w

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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