HO Scale Details - Concrete Highway Barriers

thingiverse

In the 1950s, concrete traffic barriers began popping up in New Jersey and quickly gained worldwide recognition for their effectiveness at halting out-of-control cars. Technically, this product is a Type-F barrier, which has been perfected over recent years. These barriers are manufactured in three convenient lengths: 10', 12', and 20'. This set includes two 10' sections, one 12' section, a 10' barrier featuring forklift pockets underneath, and two molds, perfect for casting your own concrete traffic barriers at home. For those interested in casting these quickly and inexpensively, a step-by-step tutorial can be found on the website shortlinemodelers.com, specifically on the article "Realistic Concrete" published in 2019. The first mold is designed to be clamped securely, but features four strategically placed 3.5 mm holes that allow for easy assembly using four M3 x 16 screws and nuts. In contrast, the second mold is a single-piece top-down design without fork pockets. To ensure a seamless finish, fill this mold completely before verifying that the bottom of the part is flush with the mold's base. While resin can be used to create these barriers, it's worth noting that high temperatures may cause filament melting temps to exceed safe levels.