Two Trees Sapphire Plus

The Two Trees Sapphire Plus is an FDM 3D printer from Two with a 235 x 235 x 235 mm build volume.

Calibration

• Perform a full mechanical baseline inspection before any tuning.

Action: With the printer powered off, inspect every motion axis by hand: move the gantry slowly through X, Y, and Z travel, check that the CoreXY belts are evenly tensioned, verify that both Z screws lift the bed evenly, and confirm that the linear rails move without grit, binding, or lateral play.

Common defects

The Sapphire Plus is widely described as a strong mechanical base that often needs tinkering, and the main failures reported in the supplied sources cluster around the extruder/hotend stack, firmware maturity, and revision inconsistency.

• Stock hotend thermal ceiling is limiting for fast printing: One review describes the stock hotend as an MK8-style PTFE-lined unit and explicitly warns against printing above 250°C.