These models could be Add-On to: H0 Double Edge Platform Modules (separate downloads):
'Double Edge Modular Platform Basic Set 1-87 FDM color'
Attached are files for two versions of the model - on the platform and off the platform.
Models:
1) 127 BridgeOpenworkGrate BLACK.3mf2) 127 Column 3colors (Ver4Platform).3mf3) 127 Column 3colors (VerNoPlatform).3mf4) 127 DoubleEdgePlatform (4colors).3mf5) 127 Ladder (Ver4Platform).3mf6) 127 Ladder (VerNoPlatform).3mf7) 127 SignalBridgeR GREEN.3mf8) 127 SignalHanger (2colors).3mf9) 127 Signals BLACK (4options).3mf
Scale: H0 (1/87)
Printer (my printer): Anycubic Kobra S1 with one Ace Pro (4 colors)
Colors1: (1) gray; (2) black/dark gray; (3) pink/red (4) white/yellow
Colors2: (1) green; (2) black (The colors are interchangeable, so you don't need a second Ace Pro)
What you'll receive after downloading the project: 3MF file: project Anycubic Next Slicer (based on Orca Slicer). This file contains a ready-made project for printing on a Kobra S1 printer equipped with one Ace Pro.
I assume that the project can be printed on other color FDM printers, not only the Anycubic Kobra S1, but I only have this printer and I have no way to verify it.
If you want to make sure you can print this design, download as trial the free platform module initial/end with barrier:
'Double Edge Platform end barriers modules 1-87 FDM color FREE'
3MF (3D Manufacturing File, filesize: 1.66 MB)