I tried my first epoxying of one penetrator for a thruster, it went well, but I was a bit tired of the wire not being centered and straight. Also the need to keep the wire fixed for the curing annoyed me. So I came up with this tool for making two penetrators at a time.
Short you instant glue the wire ot the penetrator. Then you mount the penetrator in the tool tighten the nut and fixes the wires trough the two openings in the top with clamps. Now the wire is allmost straight, and you can inject the epoxy into the penetrator. The protution below is to mount it in a vice.
When the epoxy is cured, you can turn the penetrator the other way, again the wires are fixed in the two openings at the top, and epoxy can be injected.
I have printed it on a Ultimaker 2+ in ABS. If anybody want the .STL file you can send me PM. If Blue Robotics permits, I can attach the .stl here as well.
Hope you can use it