The model includes 2 types of wooden floor (with and without hydraulic brake option), return wedges and a hydraulic break. The model is made up of parts and requires to be glued together, which gives you the option to make some smaller difference in a full battery. It also includes some extra things, like ammo-store boxes, propellant charge canister and barrel-cleaning rod.
Due to the details the model will print fine for 28mm wargaming, however I only test-printed it in 1:100 scale. I have added supported files for 1:100 printing only. Those I used to test-print the model on an Anycubic Mono SE (0.05mm layer) using Anycubic Basic Resin. Feel free to use the supported stl’s. Just be aware those are tuned for printing on my printer and I do not guarantee will work perfect on any other printer.
The wooden boarding is best printed with an FDM printer flat on the print-bed.