I built a PiDP-11 a while back that kind of sat on a spot on my desk. Not a great mounting/display solution. I started doing projects with Fusion 360 sheet metal. And I was inspired to finally do something about the poor PiDP on my desk. My solution is a 4RU 19" mount. I found SendCutSend.com would make these parts in the small quantity I wanted and reliably did a good job. I'm not affiliated with them in any way and I do not receive any consideration from them, I just found them a good vendor for this and I'm passing that info along. The 2 parts cost a total of about $65 US, laser cut, bent and shipped in the US. The reason I'm here is to provide you with the .dxf files needed to produce these parts at your favorite place or in your own shop. The mount is made in 2 parts from .063" (1.60mm) 5052 Aluminum. The "Front" has rack mounting holes and the 5mm holes for the PiDP, a cut out for an 80mm fan powered by a USB port on the Raspberry Pi, an access hole to get to the Raspberry Pi and a hole for the Keystone module riser. The second part is the Keystone riser that has space for 6 Keystone modules. The Riser raises the Keystone modules up enough that there is enough room between the PiDP-11 main board and the mounting plate to use right angle connections or make the turn with the wire out of the bottom of most of the connectors I am using. I have mine set up with 1 - RJ45 coupler for Ethernet, 1 - USB-C coupler for power (with a short USB-C to Micro-USB cable), 1 - HDMI coupler for video, 3 - USB-A extenders. You can choose the modules you like. Both parts are symmetric around their long centerline. There is no up or down. These can be used in either hemisphere without modification. The two parts can be riveted or screwed together. The design was done for 0.063" (1.60mm) aluminum, so the bend lines and allowances in the design are for that material. While the main plate could be made of any material of any thickness (bend lines would have to be recalculated) the Keystone riser needs to be 0.063" (1.60mm) in thickness so that the latches on the Keystone modules will work properly. The holes in the riser conform to Keystone module size, but I did not seek a license for the holes. My reasoning is that the patent describes the module and the latching mechanism, not the hole and the patent holder will receive some compensation from the manufacturer of the modules that are used in conjunction with my riser's holes. **BENDS:** The bends are all 90 degrees. The Keystone riser has 4 bends, the inner bends are bent down 90 degrees and the outer bends are bent up 90 degrees.