Open WarHex is my personal project to make a modular, scenic terrain system for my tabletop gaming. I have a thermoplastic filament 3D printer and access to plastic injection molding equipment, and these are designed to be buildable both as additive 3D prints, and subtractive machined molds used for plastic injection in ABS. The Open WarHex is a 1.35" (nominal 1.5") hex with a .2" gutter, for a full diameter of 1.75". Height per layer is .75" The gutter allows for seamless and secure vertical stacking. The gutter also features a self-centering contour for a secondary modular ring base that complex scenery additions such as forest lines or smoke walls can be built on. This allows the hex to be surrounded with modular, movable scenery or details, but leaves ample room in the center for a miniature to still occupy the hex itself. These terrain pieces can create an awesome, three-dimensional, visually striking tabletop battlefield - especially with some finishing work, such as painting and flocking. Current pieces include plain single and double hexes and the modular scenery ring. Triple hexes and twelve hex flat areas will be included soon. Compatible scenery parts such as flame hex markers, smoke columns, and other modules will be added over time. Specialty hexes such as roads, water, rough terrain, and others may also be added based on interest. Anyone that wishes to make compatible hex or scenery parts is welcome to do so, under the Open WarHex banner. I play tabletop BattleTech, but this terrain system is usable for a wide variety of tabletop games. Feedback is appreciated! Please leave suggestions, experiences, critical failure analysis, gripes, squawks, wishlists, and any other input you feel could help improve and expand Open WarHex!RouseauWorks over at Raconteur Weekly has made a quick video review of Open WarHex, check it out here: https://www.youtube.com/watch?v=xHQYE46uuRgIf working in mm, multiply by 25.4 Designed for single-extruder .5mm ABS filament, but also capable of being used as a master for a subtractive injection mold (my original intent). Not suitable for small children. 8/26 - Adjusted tolerance (internal dimensions) of module ring for improved fit. May not even be noticeable. We'll see. 8/22 - Added Depth 1, Depth 2, and Depth 3 single hexes. These are meant to be used without hexes above them, although Depth 1 and Depth 2 will still stack (Depth 3 will not, it has a flat base). The central hex area is recessed instead of raised, to help the miniature feel submerged. All three will accept a scenery module ring. 8/21 - Version 2! Pins on module ring eliminated by using self-centering contours on main hex. Gutter increased to 0.2". This provides more room for scenery details and more part strength. Per-tile height (minus central hex platform) reduced to .75". Three hex and twelve hex parts added. All parts have been revised to new specs, so please update any local copies.