First off, thanks to MIG for his spring-tightening method. Without it, this would not be possible. Also, thanks to Poptachi and his YT channel; I was watching it when I got the idea.
To begin, you need this stuff:
17/32” brass (optional)
Lighter or hairdryer
Nest the 1/2” brass in the PETG. Use the 17/32” brass if you want to keep part of the PETG at it's original dimensions.
Heat a section of the PETG with the lighter. This works best if you rotate the tubing quickly and keep the section between 1-2 inches.
Pull (yes, pull) the two ends of the PETG apart. This stretches the tubing and shapes the ID to fit the OD of the 1/2” brass, giving the PETG a similar ID to 17/32” brass. The 17/32” brass keeps that section of the tubing at a 17/32 ID, or normal ID.
Move along, and do the same to the rest of the tubing.
This is really easy to do, and has a great fit for darts. Unlike the spring method, the ID is a lot more constant so the dart seal should be a bit better.
Samurai kiddMember Since 02 Dec 2012
Offline Last Active Jan 11 2017 11:17 AM
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