Swingline 350 MD 3 Hole Punch Replacement Gear

thingiverse

I am completely blown away by the durability of this thing. It has been running a 50 sheet punch for thousands of students for over a year, and I'm still reeling from its exceptional performance. The fact that the original one broke has left me scratching my head. Our main drive gear had suffered significant wear and tear on our Swingline 350 MD. A few teeth had literally sheared off, leaving us with parts that were no longer available. But we were determined to keep it going. With some creative problem-solving, we turned to 3D printing as a solution. I'm thrilled to report that the printed gear has now been in operation for nearly six months and shows no signs of giving out. It's amazing how far 3D printing has come, and this experience is proof positive. This printed gear was simply a prototype, but its longevity has truly amazed me. It has handled hundreds of large engineering homework assignments from university students with ease, proving to be as reliable as it is rugged. To get started, print the gear at 100% infill with whatever layer height and shell thickness you like - just make sure to do so in a single piece. This was actually one aspect that proved difficult for me - making sure it fits snugly over the shaft required some trial and error, as the final dimensions needed to be fine-tuned by carefully filing it down. Replace your broken gear with this new print while ensuring the punch remains safely unplugged in an isolated area. Take heed of the following caveat: attempting to service or replace parts yourself may put you at risk unless you possess formal training or hold the necessary clearance from authorized technicians or personnel responsible for conducting warranty repairs on equipment like our Swingline. Finally, as an engineering student with firsthand experience using hole punches like this one, I must say their surprisingly simplistic yet functional design makes it both admirable and perplexing. How does a design that can perform with such effectiveness command a price so high? It leaves me questioning their logic.