Hello,
I have a CAD table and I have a cutting laser. I've mounted the laser to the table, but the two talk a different language. The table wants the laser to fire when it changes a line from 1 ohm to 21 ohms (+/-1 ohm). The laser wants to fire when it receive a 5v DC signal. I'm trying to make on a breadboard a circuit that will trip a switch when it detects the 21 ohms on the line.
So, to make sure I've explained this correctly, the breadboard has 2 sets of inputs (a 5v dc power supply, and 2 wires from the CAD table which have a normal 1 ohm reading). The breadboard has one output, which is two wires used to send the 5v dc signal to the laser. When the two wires from CAD table indicate 21 ohms, then the switch sends the 5v dc current to the laser.
I've tried use the CAD table's output wires as the switch, but it wasn't designed to work that way, and all I get are random voltages. The only consistent results from the CAD table is the ohms shown on the tables indicator wires.
Thank you for your help.