The “Forever Dry” Box is a cylindrical shaped container consisting of a clear acrylic ring that is 52mm (2.05”) in width and 220mm (8.7”) in diameter. The container also consists of a Feed side and a Portal side made of white PETG and a 52mm diameter center spindle with steel bearings.
The “Forever Dry” Box will accommodate a filament spool that meets the following specifications (which is almost all filament spools):
Outside Diameter: no greater than 205mm
Inside Diameter: No less than 52.25mm
Width: No greater than 70mm
The Feed side includes a pass-through Bowden tube port that will accommodate 1.75mm and 2.85mm filament diameter. The Feed side also includes a desiccant tray that covers the inside diameter of the Feed side and is pre-filled with 4 ounces of rechargeable desiccant.
The Portal side includes a hygrometer with a range of 10% to 90%. The Portal side also includes a volume viewing port that is 38mm (1.5”) in diameter to allow viewing the remaining volume of filament on the spool.
The stands have a 16-sided polygon edge to fit over the edge of the “Forever Dry” Box. This allows the stands to fit over the dry box in 16 different positions and it allows the stands to act like wrenches when screwing the two sides of the dry box together. The stands are made of PETG.
Another advantage of this edge fit is to allow secure horizontal stacking of the dry boxes for as high as you like. The thick base of the stand gives the dry box a solid support structure which can also be used as handles when maneuvering stacks of dry boxes or when opening and closing a dry box.