Epee Wire Tip Insert

Print PETG
Required materials:
Soldering iron, solder, 2 jumper wires, shrink wrap (as small as you can get it)

Designed to be used with this print: https://www.printables.com/model/1210531

Assembly Instructions:
take two jumper wire and strip off a little less than an inch
if they are multi-ply, twist the end to make a rigid wire

put the smallest heat shrink you can find around the exposed wire up to ~.5cm from the tip. This is to insulate your wire from the ground, while keeping the wire diameter small enough to fit through the tip while it is attached to the blade. After heating the heat shrink (using a lighter or heat gun), repeatedly clamp the tubing down with pliers (while it is still hot) so that it appears flat.

insert both wires into the holes in the 3d printed part. If the holes are obstructed, use thin tweezers to open them up. You should insert the wires from the hollow side, so they poke out the flat side.
Make sure that the 'flat' sides of the shrink wrap are parallel to each other, and fasten with locking pliers/wrench/soldering clamp to prevent movement.

point both of the wires upward (perpendicular to the 3d printed part)

cut both of the wires to the same distance, extruding <1mm from the tip of the 3d printed part

Using the iron, apply flux paste to the two wires, and the flat part if the plastic if you can do it without melting

using a very fine soldering iron tip, put a very small amount of solder on each of the exposed wires. Its okay if the solder stretches upward - use the non-tinned part of the iron to push it back down. You should end with two balls of solder roughly the same in height, not touching each other. Ensure that neither blob extends past the first cutoff on the 3d printed part (where it drops in height by ~1mm). The spring needs to go here, and if either is touching the spring, that line will be grounded.

make sure to leave some solder on your iron before turning it off!

Insert your finished tip into a barrel. Use something long and thin with a flat metal head to flatten the solder when inside the barrel. I was able to use the flexible screwdriver insert that came with my screwdriver kit

Screw the barrel into a blade. Make sure that the flat ends of the shrink wrap are parallel to the flat side of the screw insert in the tang piece. Proceed like usual from this point.