Laser Installation (Two ways)

This is a simple laser light effect for a disco, outdoor advertising, as well as at home, in a cafe ... The thing is very simple and everything can be seen from the attached drawing. Mirrors (less than a centimeter in size) are attached to everything else on the bent stick from the designer on plasticine, chewing gum, glue ... Batteries last for several hours. It is important - the angle between the shafts of the motors is close to 90 degrees, the mirror on the shafts is crooked by 3-5-15 degrees. Result: a classic “Lissajous figure” (epi- / hypo-cycloid) is drawn on the wall or ceiling, with a certain number of petals, it is spinning all the time, and the number of loops depends on the unevenness of the motors, and it changes as the batteries discharge. For children and those who have not seen the oscilloscope - “oh, how cool!” It is going in half an hour. For the "advanced": the batteries can be the same - don't forget just that the pointer needs 4.5 volts, and the motors - which you will get ... For the "very advanced" - the pointer consumes 40 milliamperes, and with what you will provide them - your business (you just have to turn on the pointer and two motors in parallel in parallel) fromexternal 5v source.  Donotforgettoplacethedeviceinasolidcaseandsaywhatyouboughtfor0:)) Herearephotos(withdifferentexposures)ofthislaserlighteffect.
InthisdesignYouwillneedtwosmallcoolerfromtheoldcomputer.Wegluethemirrorsonthemwithsuperglue.You ask  - Where to get the mirrors?! - I will answer in almost any stationery store sold Chinese sharpeners with mirrors, and accordingly a laser pointer. Then everything is clear without words!