Robot with a real laser gun

thingiverse

Probably the most elaborate and pointless laser pointer you can find - a robot with a laser gun with a real laser diode inside. Features include: Real laser Momentary laser activation button on the top of the head Non-momentary switch on the back of the head. Tripod screw connector in the right knee Model was designed with SketchUp, STL files fixed with Microsoft 3D builder, sliced with Cura and printed on my Robo3D R1+ Required parts A 44 AA battery box, make sure it's not bigger than 63x59mm, I got mine from AliExpress "Battery Box Slot Holder Case for 4 Packs Standard AA 2A Batteries Stack 6V" A laser diode, 6mm size, get one that's good for a laser pointer not for cutting things, I got mine from AliExpress "650nm 6mm DC 5V 5mW Mini Laser Dot-shaped Diode Module WL Red Copper Head Tube" A 6x6x10 or 6x6x8 push button, I got mine from an old toy A slide switch, internal size 8x15mm, total length 25mm, knob width no more then 8mm, pitch no more then 10mm, knob height at least 4mm, I got mine from an old toy A resistor - you need to match the resistor to your diode, using the wrong resistor can damage the diode or make the laser dangerous. 1/4 Inch Hex Nut One or two short 2mm diameter screws Some thin electrical wires Printing The body print on it's back, it include built-in support, auto-generated support will make assembling the model harder. The right leg print front of the leg down (with both the foot and knee touching the build plate), this file requires support everywhere. The left leg print with the flat side (back of the leg) down, this part needs support touching buildplate, support everywhere also works. The head lid print with the rectangular flat side down, no support needed but shouldn't be a problem. The battery lid print with the big flat side down, support not needed but shouldn't be a problem. Assembly: Start with the body, cut out the two small pieces holding the shoulders, the 4 columns connecting the back of the gun to the robot body and the two boxes inside the battery compartment on the back Insert two wires (one for + and one for -, use two different colors, red and black work well) to the hole in the back battery compartment that leads to the right shoulder, there's an hole below the elbow and another at the bottom of the hands to help you route the wires, push/pull the wires all the way threw the arm and out of the barrel of the gun on the front. Cut the wires connected to the laser diode at different lengths, solder the shorter one to the corresponding wire that comes out of the barrel. Solder the longer one to one side of the resistor, solder the other side of the resistor to the other wire. Carefully pull the wires back until the laser diode is inside the barrel. Take two more wires and solder to the two sides of the slide switch, then two more to the two sides of the push button. Insert the slide switch into the hole at the bottom back of the head, insert the wires into the neck. Put the push button on the little bean at the top of the head, also insert the wires into the neck, leave some extra, you will need them when you place the head lid. Solder one of the switch wire, one of the button wires and the battery + wire together. Solder the other switch wire and the other button wire to the + wire going to the diode. Solder the - wire going to the diode to the battery - wire. Now it's time to test everything works. Push the battery box into the hole of the back, all the wires should go into the little recessed area on the right, use the 2mm screws to secure the battery box to the body. Use the head lid to close the back of the head, first insert the push button into the lid, then slide the lid forward. Insert the hex nut into the smaller hole on the back of the right knee. Clean the supports from the right leg and push it into the two hold in the right knee. Clean the supports from the left leg and push it into the one hole in the left knee And now all that's left is to push the battery lid into position, the little bit that sticks out is at the top. And that is it, you now ever a real laser shooting robot I marked this thing as a "work in progress" because those aren't the exact STL files I printed, I fixed some things to make the parts fit better, if you print this please leave a comment and tell me if everything is ok.