When installing DIMM modules in vintage workstations, applying even pressure across both ends of the module matters. Uneven pressure can bend pins, miss the retention latches, or stress the socket. In a tight chassis like the Sun Ultra 1’s, getting your thumbs on both ends of the DIMM at the same time is awkward at best.
The tool is a long flat bar with notches at each end sized to grip the outer corners of a standard DIMM. Drop the notches over the module’s ends, push down with one finger anywhere along the bar, and you get even pressure across the whole module. No more pinching your hand into the chassis to get both ends of a stick at once.
I originally designed this for a Sun Ultra 1, where the chassis geometry around the DIMM bank made hand-pressing the modules a chore. The same tool works in any tight machine where you need slim, even-pressure access. Print in PLA at standard quality — there’s no mechanical stress on the part beyond what your finger applies, so infill and wall count don’t matter much.