Universal, stackable Piers for Unitrack and Viaducts, n-scale

Here's a new version of the piers for KATO’s track systems. The goal was optimal stability with compact storage, as well as the ability to use them not only for viaducts but also directly with Unitrack track. Especially with temporary layouts, you don't always have viaduct track available, and it's not exactly compact to store as well, isn’t it.
By that reason there are two adapters, to be inserted into the pier, one for viaducts (you need the S-Joiner here) and one for tracks fitting into the track bed. So, you can even combine viaducts and track, if adjusting the height, for what there are another kind of adapter is available.
However, when using the tracks only, there is a risk that the trains could fall off the elevated rails. To prevent this, there are holders into which cardboard strips can be inserted. These can then be rolled up for transport/storage. Another issue is that especially for ramps a fine tuning of the hight may be necessary. So, I created some more adjustable adapter for the track.
The piers itself are available with height form 10 to 70mm in 5mm steps. The must be printed top downside. A raft is recommended.
For connecting T-Trak-modules there are half piers available.
And finally, the piers and viaduct adapter are so designed, that cables can be routed, what of course makes sense only with the DIY-viaducts.

To fit the viaduct track onto the piers you need the so-called S-Joiner, that are offered by KATO under number 24-817 (20 pieces). I recommend using these original parts, although there is a DIY-version available, designed by 3DSandwich:
https://www.thingiverse.com/thing:4814862/files
In my experience the DIY-version tends to break, if printed in PLA and is not easy to print in ASA, although strength would by sufficient in such case.
All this may be called over-engineered, but it was fun to design. Hope someone has use of it. Would be happy to see your use…. Have fun!

Please note:
“Kato” and “Unitrack” are trademarks of K.K. Sekisui Kinzoku, Japan. All trademarks are used for reference only. The design presented here is neither supported nor authorised by the before mentioned trademark holder(s).

Please note the license:
My design is published under the CC BY-NC-SA license, which means that you can freely use this model for any non-commercial purpose and may remix this model freely as long as you provide attribution and share with the same creative commons license. Feel free to contact me if any questions.