Thingiverse
Lathe Chuck holders were designed for Precision Matthews PM-1022/1030V. The ID of the case is 127mm so should hold any chuck smaller than that. I cut some sponge like foam to put in the bottom to protect the Chuck. The bottom half I printed with enough bottom and top layers that the base is solid. Probably would be fine with a 1mm top and bottom and 20% infill.
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This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
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Check the license (see original page) on the original Thingiverse page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.