Small edit: I forgot two different files are required for each side. Both file "A" and "B" are now available. 

I have created a set of (non) DZUS rails that you can print on a standard sized 3D printer.

It is not a DZUS-rail. A DZUS rail has a metal string running along the holes that the DZUS-screws hook on to. Instead it is made with holes that you need to thread and then can fasten your panels with M4 screws.

Download and print

Download: Side Rail A
Download: Side Rail B
Download: Double Rail (Mid)
Download: Bracket
Download: Pillar

There are two different rails. One for the side one for the middle. The sides has two different files that must be printed. A + B. The mid-section needs to be printed twice.

Further more there are brackets for the mid sections. Both brackets for the ends and struts for the middle if you find that necessary. Struts can be placed on a beam that either runs along the rail or across your pedestal.

Print steins: I recommend thicker sidewalls (1+ mm) and 33% infill. PLA. The rails must be rotated 45 degrees to fit the print bed.

There are two rails available. One for the sides and one double for the middle. Each must be printed twice to make the full length of the pedestal.

How to use

Once printed how to install:
The sides are fastened directly in the the pedestal sidewall. Place a few screws in the overlapping section.
Midsection must be held together with screws in the middle/overlap. Use the end-brackets to hold it in place. Mid-struts should not be necessary but are provided.

You can use to methods to make treads:

Use a M4 tread-drill. These can be bought for few $$. Make sure to go very slow with the drill. PLA starts to melt due to friction from the drill. And you want that tread nice and not all melted. So go slow in both directions and guide the drill.

The more expensive option is to buy brass tread inserts. These are melted in to the rails where you need to mount panels.

If you use a tread-drill be aware that at some point the tread will break. Either if you overthighten the screw or if you change panels many times. For the pedestal it is not that big an issue as the panels lay flat on the rail. But just be carefull both when making the holes with the drill and when installing panels.

Of course you only need to make treads where panels are installed.