yes inexpensive, however sounds interesting, perhaps can I make it my own with a 3d printer if I make a lens with tranparent plastic?
(in my country Axicon not arrive)
Hi, I'd like to make a circle beam from laser point without a motor. This is a tower that project a circle on the ground.
I thought that if I place a laser under a metallic sphere or a cone could work? or the laser is so precise that is reflected exacly vertical?
Perhaps should a have a...