Automatic center punch

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An automatic center punch is useful in the mechanical field. Usually, they are made of metal. Now I designed a 3D printable automatic center punch. It works very well. Also, I give you the easiest and effective upgrade method. Use a smartphone, the alignment to the punching center become very easy and visible. Hope it will help you a little. I bought a long spring. It is not necessary. If you use a shorter one the whole body can be decreased. I add the f3d file also. You can adjust the length according to your spring size. Detail information on Youtube: https://youtu.be/OHkTTdodiB0

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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