EN IT
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Gemini Calibrator

Print fitting_TEST first. Confirm the offset. Then print the full calibrator on the same printer + resin you'll use for production. The geometry of this part anchors the entire system.

Gemini Calibrator printed on a 3D printer build plate, six pieces nested for batch printing.
STRAIGHT OFF THE BUILD PLATE Same printer + resin as your production models
PRINT FITTING_TEST FIRST · ALWAYS

The fitting_TEST is small, fast, and proves that your offset choice produces the right fit on this printer/resin combo. Skipping it means burning the full calibrator with the wrong offset. Don't.

Six calibrators, one choice

Pick your tier (Light or Ultra — set when you bought the kit) and your offset (Tight, Standard, or Loose — set by your printer/resin). Each combination is a separate STL. Standard is the default for most printers. Tight = printer prints undersized. Loose = printer prints oversized.

Light · 35 mm

Light Tight calibrator, coral/red colour-coded.
TIGHT
Light · Tight
For printers with negative drift.
Light Standard calibrator, mint colour-coded.
STANDARD · DEFAULT
Light · Standard
Start here for most printers.
Light Loose calibrator, green colour-coded.
LOOSE
Light · Loose
For printers with positive drift.

Ultra · 55 mm

Ultra Tight calibrator, coral/red colour-coded.
TIGHT
Ultra · Tight
For printers with negative drift.
Ultra Standard calibrator, mint colour-coded.
STANDARD · DEFAULT
Ultra · Standard
Start here for most printers.
Ultra Loose calibrator, green colour-coded.
LOOSE
Ultra · Loose
For printers with positive drift.

Colours are presentation-only — the printable STL is a single grey/cream resin part. The colour code helps you remember which offset you chose at the bench.

Print sequence