This super cool mechanical toy introduces type one levers, gear reductions, and a whole lot of fun. No screws needed! But now that you're here, let me tell you some more about the Extendable Boxing Glove! First here is a video of me using it to give you a better idea of how to hold it and what it is capable of doing.

Here is one more quick video I want to show you! This is because the only thing cooler than the Extendable Boxing Glove by its self is when it is punching something else like a full pop can!

Before starting to make this model a things need to be addressed. This print, because it uses all 3D printed parts for mechanical joins, must have tight tolerances. I would highly recommend at least printing two long links and a few pins and sockets to test expansion tolerances within the slicer. That being said, I would still print on the looser side as this allows you to tip the handle back to retract the boxing glove instead of reaching out and pulling it back in as seen in the video.

I printed everything at 0.2mm layer height with a 0.4mm nozzle. I used a normal 20% infill and 3 top layers, 3 bottom layers, and 3 walls to give it a ridged but light construction.

Assembly Instructions

At any point if you have a question about assembly feel free to leave a comment and I will get back to you as soon as possible with an answer!

Handle Assembly

1. Once all of the pieces are printed we can begin the assembly process of the HANDLE. Take the Handle Body and place it flat on a table. Following the picture you should now be able to assemble the Handle, Gears (which there should be two of), and Handle Short Left / Handle Short Right (which there should be one of each).
2. Ensure each part is moving smoothly and CAREFULLY CHECK THE PICTURE TO ENSURE THE HANDLE AND HANDLE SHORT RIGHT AND LEFT ARE IN THE CORRECT POSITION AT THE SAME TIME. It can be finicky but this step is much easier to get right now versus after assembling.
3. Now that everything is correctly positioned you can press on the Handle Lid and then install the four clips located in each corner of the handle to secure it as one unit.

Glove Assembly

1. Moving onto the other end of this model to assemble the glove which is pretty straight forward. First locate the glove piece which should be printed in a different color than the rest of the model and the Glove Base which is labeled in the visual instructions above. Once you locate these two pieces you can insert the Base into the glove until it will not go in any further and/or you hear a click signifying the clips sliding into place and mating the two pieces.

Scissor Mechanism Assembly

1. The final subassembly is simple but repetitive. First locate all of your Long Links, Pins, Sockets, Glove Short Left, and Glove Short Right.
2. Start on the end with the Glove Short Left and Right and begin joining them to long links using a mated Pin and Socket.
3. It is easiest to refer to the visual instructions to show how the Pin and Socket mate to make a strong mechanical joint.
4. Furthermore, please ensure you look closely to match the orientation and position of the long links to each other (in this case and what you should do as well the top set of links are rotated up and right OR down and left and NOT up and left or down and right) messing this up will cause problems mating the sub-assembles later.

Final Assembly

1. Hopefully at this point you should see it all coming together. Find the remaining Pins and Sockets you have (should be 4 pins and 4 sockets).
2. Ensure everything is in the correct place before mating them and then join all three sub sections together following the visual instructions.
3. That should be it and your model should be working. You may need to use it a few times for it to loosen up as there may be a few nubs from printing that need to be warn down.
4. If you have any questions please ask I am here to help!

Safety Warning

***Please be safe! While this is a toy, if you put some muscle into it you can get it moving pretty fast and it could hurt someone. Never point it at someone who does not want to be hit or point it at anyone's face. Remember, with great power comes great responsibility.***

Thank you for your support and enjoy,

Westy