Creality Ender 5 Plus Tramming while printing
Using the built in BL Touch to Auto level the printing bed while 3D Printing
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https://www.youtube.com/watch?v=1_6xfxTGeSg
YouTube Most viewed/replayed parts in a video
The two video's mentioned:-
How To Make Ruby in a Microwave
https://youtu.be/ybcdRQmQcHQ
Ruby laser design process
https://youtu.be/VSdUQ4oNKiI
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https://www.youtube.com/watch?v=QgN_Z4FXuOY