I managed to grab a few hours over the weekend to start planning the build of the PDP-9 racks. I’ve decided to build the frame out of 33×33mm planned timber which should give a nice rigid frame and be able to bare a few heavy items such as a paper tape drive.

The diagram below shows a sketch of what I am planning to build (hopefully you can read m left paw scrawl):

All the timber has been bought so next job is the fun bit, building it!