For MX series tips (for the MX-500 and MX-5000 series 13.56MHz soldering stations). Compact and simple. Holds up to 32 tips (narrow tips - wider tips may prevent the use of adjacent receptacles). It should hold the tips snugly, but still easy to place or remove. Added the OpenSCAD source so one can change size of holder and number of tip receptacles. Always place the electrical connector side down. The tip side is hot and will melt the PLA/ABS/Nylon used to print the holder.