drag knife on 3d printer upgraded version

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2021/5/1 Add more functions to 3d printers is a topic in my recent project. I have added a drag knife to it but the result is not as good as I expected. 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 change it to a simple tube alignment structure restricted by two pairs of ball plunger. Now it is much better than last time. Even the small text can be cut precisely. It uses the same skeleton box as I uploaded before. The clip and screws are also the same as the multi-pen plotter. The original f3d file is also added. You can modify it to fit your 3d printer if it is necessary. If you like my design or my design idea or concept, please subscribe to my channel and watch longer as you can. It will help me a lot. Thanks a lot. https://youtu.be/xgl5iwytSNM

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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