

2 HDs are mounted at a 90 degree angle. The bolts to fasten are non-metric:



In Europe, the threads of these case screws are totally incompatible with anything, so the only way to fasten the HDs is to use the existing case screws from a discarded computer, which means they can only be mounted on a metal sheet or strip.



(Case screws. These screws are six-gauge wire with 32 threads per inch American National Coarse Thread (UNC) machine screws that are cut to accept a both a Phillips No. 2 screwdriver and a 1/4 inch hex driver and are 5/16 inch long.) Wikipedia.



Of course, the prime candidate for this is the disk holder in the discarded computer: It has all the screw holes already in the right place.

This way, 2 strips have to be cut from these parts, and have to be mounted squarely.



I was not able to find an old computer before the deadline (contest!), so I mounted both on a wide strip of aluminum, 2mm thick. This strip is mounted on the lower part of the enclosure.



The HDs: nothing inside is changed. I had some old 5400 RPM HDs laying around, although having a small memory size (2.1 and 4.3 Gb), they still work fine.



They still can be used as 'image tanks'; dual use. Put rubber spacers between HDs and the mount to get rid of any high frequency vibrations produced by the HDs.



Note: Taking these HDs into the field, the data they contain might not survive the rugged environment, or rough treatment. Shock damage might cause loss of data.

