This is a modification for the Nerf Blaster darts. You just have to pry off the tip of the dart you get, and put these into the shaft. They should fit fine, but if they don't, cut off the little bumps at the bottom (which are meant to make it a more secure fit). These tips make the darts more aerodynamic, and in testing, have led to 2-8 feet more length in shots than normal darts. They also don't hurt as much as you would think, even though they are pointed. Give me some feedback about my design.
I have tried other heights and some other shapes for the tips, but these 2 designs seem to work best for me in testing.
The 10% infill is very important. I have tried other values, but that is the one that seems to weigh closest to the original tips (you might be able to go to 20%, but no more). This is important because it allows the blasters to still fire accurately, given the darts weigh about the same as the originals.