Grain Dryer -This grain dryer comes with 2 STL files, one for the dryer itself and one for the fans. Simply print out the drysr and 2 of the fans, Then glue them together. Actual Size - Tall - 2.8", 70.0mm / Wide - 1.3", 34.0mm / Long 3.4", 87.0mm HO Scale - Tall - 240.0", 20.0ft / Wide - 116.6", 9.7ft / Long 298.3", 24.9ft