The roof bar is a 1 piece print, and comes in the following lengths: 70, 80, 105, 120, 140, 160,180, 200, 250, 300mm. 

For mounting the roof bars to the roof, it requires four M3 screws and nuts. Simply line up the roof bars onto the body, mark the holes and drill through the body to mount the M3 screws and nuts. Alternatively if drilling through the roof of the body is not an option, hot glue seems to provide good results, though too much flex can cause the glue to detach.

The roof bar improves the utilitarian looks of your rig, as well as providing scale bungee straps to hook on to to strap other accessories under.

A roof mounted box, which clamps to these roof bars may be coming soon!

As the “1/10” scale is more of a loose standard, feel free to scale up or down in your slicer to fit your own rig, if necessary. Do keep in mind however scaling up will result in the 3mm holes to change in size, and will require a different diameter of screws.

As the part is likely going to be exposed to rough conditions, it is recommended to use either a tough type resin, or printed with less brittle filaments such as ABS or ASA.