18mm spring coupler for using two 18x100mm springs
This coupler lets you use two 18x100mm springs in place of the 18x200mm recoil spring without binding. print in PETG.
2
25
0
62
updated
June 8, 2025
Description
PDFThe assembly video says using two springs is ok, but I was afraid they'd get bound up. I came up with this little coupler to join two 18x100mm springs, while keeping them centered on the guide rod.
I printed mine in leftover PETG-GF, but regular PETG should work fine. No supports
Model origin
The author remixed this model.
Differences of the remix compared to the original
The original calls for a 18x200mm recoil spring. This model joins two 18x100mm springs together.
