Best tool there is: [Vector 3D Califlower Mk2 – 3D Printer Calibration & Skew Fix](https://vector3d.shop/products/califlower-calibration-tool-mk2?variant=49583800156498) **Califlower V1 is a spreadsheet version -- this is useful for X/Y Shrinkage compensation in a given filament on Prusa Printers.** Quick and dirty shrinkage calibration: **Erik's 200mm Calibration Tool** ## Calibration Results | Date | (Printer Name) Type | Filament Type | XY Scale (Califlower MK1 @ 100%) | XY Scale (Erik 200mm Calibration Tool) | Reference Image | | ---------- | ------------------- | --------------- | --------------------------------- | -------------------------------------- | ----------------------------------- | | 2026-01-20 | (Ganymede) Core One | Ambrosia ASA-GF | 100% (100.03 technically) | 100.14% | ![[ambrosia-asagf_calibration.png]] | | 2026-01-20 | (Ganymede) Core One | Ambrosia ASA | ==TODO== | 100.3%<br> | ![[ambrosia-asa_calibration.png]] |