3D-printed IMISX holders and assembly for goniometer-based X-ray diffraction data collection. (a), (b) Technical drawings of the h1 and h2 IMISX holders. Orthogonal views of one half of a holder are shown. Front (c) and side (d) views of one half of an h1 holder before assembly. The yellow and blue arrowheads mark the location of the male and female alignment parts at the base of the holder. (e) A complete holder consists of two halves. It is assembled by intertwining the clamps and arms and slotting into place the complementary male and female parts at the base of the holder. (f) The assembled holder is mounted in a goniometer magnetic base using tweezers and is held in place with fast-acting glue. (g) The opposing jaws of the clamp can be opened or closed by pressing on or releasing the flexible criss-crossing arms (red arrowheads) with (h) a finger and thumb or (i) tweezers.