1:20 scale link and pin coupler box
cults3d
This is a link and pin coupler box with multiple heights designed for a accucraft ruby but could be used on a custom locomotive build. I used locked up rc 2mm x10mm scale bolts to fasten it.https://www.lockeduprc.com/M2-x-10mm-Scale-Hex-Bolts-30-Black-_p_477.html
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