galvo laser marking
hello friends i am making my own galvo laser marking machine but i am confused about the laser beam expander i want to used galvo head 20mm spot with 300*300 working lens so which one beam expender i used for it if some know about it please help me my wechat ID is aqua4108363
What do you think about this post? Share your thoughts in the comments.
different laser source is different in selection of the expenders; here i guess that you are using CO2 . the expender should be 4X to 8X is ok.