How to print punch cards with Arduino?

Question

Arduino

Essence of the question: can anyone see an implementation, such as a printer, so that a tape is pulled through and holes are punched on it, according to a layout from a computer?

Answer 1

Tape - zanchit 4 bits for each step, as far as I remember. 4 bits is 0 to F in hexadecimal notation. Each time I set 4 bits, pierced, squandered the tape. Further mechanics: A punched card printer is a hole puncher with 5 knives (1 strobing). Turning rotational movement into translational. Each knife can be connected to a common shaft using a lock controlled by an electromagnet (4 electromagnets) - the shaft turned, the lock disengaged - only those knives where the lock was latched worked. Performed tape rewind and record check. Thus 2 motors, a sensor on the shaft, 4 electromagnets, 5 test inputs.

Answer 2

The question is not entirely clear.
In modern printing, there are printers with trimming and perforation - for printing brochures immediately of the desired size with holes for stitching.
If you need to perforate a tape, it is unlikely that there will be something like punched tape now, because as a storage medium it is too expensive, and there is not and cannot be a specialized device for mass sale. It will be easier to find some kind of option for perforating plastic under some kind of LED strip, but again, this is not for home or hobby use. Most likely industrial machines for a lot of bucks.
Well, the implementation - perforation is a common mechanical action. Here, to calculate power, accuracy - this is no longer a question for review, it needs to be considered and verified.