Do you like the piggy bank? Look at this one I made?
2023-02-021K34After a period of study of 51 single chip computer, I made a laser engraving machine and laser cutting machine by referring to the information of the previous generation and using the waste optical drive. Here is my production process. I want to share with you the successful new one. Thank you again for the information of the previous generation&n...
2023-02-2495323
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