On the market there are several tools available but none that are universal for different things. Kadee does a tool for checking Kadee heights and Symoba does a tool for checking NEM socket heights.
This item has been designed to check the height of your NEM socket with an alignment pin, the other end is designed to attach different NEM couplings such as Tension Lock, Kadee, and Magnetic to check coupling heights. This is an ideal tool for your Hornby, Bachmann, Kedee, Hunt-Couplings, and other similar manufacturers couplings using NEM sockets.
This item has been designed for the OO / HO track.
The example in the pictures was printed on an AnyCubic Proton M3 3D resin printer. This item can be printed on a Resin or Filament printer, but a resin printer is more likely to be dimensionally accurate. Additionally, if you lose or break this tool you can easily print another.
The main resins I use for printing can be found with my affiliated links below. I use AnyCubic Water Washable Resin for most of my items but use AnyCubic ABS Like Resin for anything that needs to be stronger and tougher.
AnyCubic ABS like Resin https://amzn.to/3yRjgu4 (Amazon) AnyCubic Water Washable Resin https://amzn.to/3T3MgFY (Amazon)
If you like my designs then please would you support me through my Patreon account - https://www.patreon.com/PJD1974, any money raised helps me research, design, and develop new items for me to share. For £1 a month, you will give me basic support and for £4 you will get insight into my new designs and be able to contribute to my future projects.
If you would like a particular item that isn't listed here you can request for me to do a project for you via cgtrader.com. Please be realistic.
Please also check out my Website https://sites.google.com/view/pete3dprintinghelp/home