TTm（和N）比例窄轨铁路连接器

TTm (and N) scale coupplings for my narrow gauge railway

2024-05-02 05:23:53

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Summary

I improved my couplings for my TTm railroad several times, depending on my skills and abilities. You may exchange older version of couplings on my cars with these design, stricter based on NEM standard 356 for N gauge coupling heads.

If you need additional values of coupling length, not provided as STL-files, you may use the FreeCAD file and alter values: Body "Bar" -> Sketch004 -> Constrain "Marked Size" (usually between 6 for small cars up to 21 for passenger cars 901-211 to 214).

I removed the printed size marker from the CAD file for better compatibility.