19" to 6" Rack Adapter Plates

These are 4 simple plates for mounting 2020 aluminium profiles across a 19" rack to allow for mounting of equipment designed for the 6" rack by KronBjorn. The spacing between the 2 aluminium extrusions is 115mm and the extrusions should be at least 400 and at most 450mm long.

The total height of the assembly is 4U.

Required Parts:

• 4x M6 cage nuts for mounting to the 19" rack
• 4x M6x16 bolts for mounting to the 19" rack
• 4x M4x10 bolts for mounting the extrusions to the plates
• 4x M4 hammer nuts for mounting the extrusions to the plates
• 2x 2020 aluminium profiles with a length between 400 and 450mm

Installation

First print all 4 plates. Please note that the top and bottom plates are not symmetrical and cannot simply be mirrored. Each plate has 2 letters on the back to indicate its correct position as viewed from the front of the rack. BL for Bottom Left, TL for Top Left, TR for Top Right and BR for Bottom Right. When installed in their position, the text should face towards the extrusions and into the rack and is not visible to the user.

Since the length of the extrusions is fixed, installation can be a bit fiddly. I lightly screwed in the hammer nuts while leaving enough leeway to allow them to slide along the extrusions. Then I screwed the plates into the rack and slide the extrusions around until they were roughly centered. When I was satisfied, I tightened the screws with the hammer nuts.

Although I personally used a frame with additional smaller extrusions, this is not necessary and was simply due to them being leftovers from my previous 6" rack.