cheapest CNC drill bit using office pin

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2021/5/18 Recently I add a PCB drill to 3d printer. It works very well. My 3d printer has become a multi-function CNC machine without interference from the 3d printer's normal use. Now I made the simplest and cheapest CNC drill bit in the world using office pin. It may not be used for PCB drills (too soft for the copper layer). It can be used as a drill bit for softwood or PCB board itself.I modify the DC 130 motor base a little bit. Add a cover that contains an M6 ball plunger to restrict the motor from moving in Z-axis. Now it is very stable. I use Carbide creat to generate the g code this time. It is much more functional than Adobe Illustrator and g code script combination. I will tell you how to use it in the next video.I add the v shape drill bit cutting process for comparison. It is very beautiful in detailed parts. The needle drill bit can not reach that level but it is almost free. 1000 pins cost about 4 dollars in fact. Still worth it in the case of some soft materials. https://youtu.be/OB50uNRyGXs

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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