This is a modular set to create ground level or elevated oil / chemical pipelines. UPDATED - 8/22: ALL PARTS REVISED! Reworked the sleeve and casing visual design. Added curve, terminus, ground and raised versions of all pipe parts, elevation change segment, long straight pipe, and Y junction. Should be everything you need to pump black gold around your battlefield. :D This modular set is a preview of a full model pack of the Colmar chemical plant (Pyre Light). Visual design inspired by MechWarrior 2 building models. Originally designed for 6mm BattleTech (1/285), using 1 hex = 1.75" (1.5in with .125" gutter, similar to HeroScape terrain). Can be scaled to fit other game scales. If working in mm in your slicing software, scale the .STL by 25.4. Feedback welcome - please comment! Multiply scale by 25.4 if working in mm. Designed for single-extruder .5mm ABS filament. Object is manifold with minimized undercuts and should print successfully with any thermoplastic filament extrusion, powder substrate (3DSystems / zCorp), or similar additive process. Not suitable for small children. This model set is a work in progress and files are subject to small or large changes without notice.