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Stronger 3D printed objects by using 3D pen in groove along the Z axis

Title: Stronger 3D printed objects by using 3D pen in groove along the Z axis. Watch on youtube: https://youtu.be/8vhGFtkd0Pw

Tags: 3dprint, 3dpen, geeetech,

In the previous video (review of Geeetech TG-21 3D pen) I got a comment which give me a great idea. If we design a groove along Z axis, we can fill it with 3D pen and make the part stronger. So, let's test it.. Experimental objects are printed with 0.3mm layer height with 2 perimeters (walls). The middle part has 20% infill and the holding part 60% infill (so it should break in the middle part).
3D pen used in the video: https://www.banggood.com/custlink/mm3ysKjylp
Geeetech TG-21 review video: https://youtu.be/NytgICPpB4I

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Contents:
0:00 Introduction
0:21 The idea
1:28 Add groove in TingerCAD
2:01 About test objects
3:09 Preparing 3D pen
3:26 Filling the groove
4:19 Deep groove
5:16 First conclusions
5:30 Mechanical tests
6:16 Results
6:51 Conclusions

#3dpen #3dprinting

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