Tronxy X5SA/X5ST/Pro/2E 400mm

The Tronxy X5SA/X5ST/Pro/2E 400mm is an FDM 3D printer from Tronxy with a 330 x 330 x 400 mm build volume.

Calibration

• Assemble and square the frame before any electrical or slicer work.

Action: Build the CoreXY frame, gantry, and Z structure carefully, then measure the diagonals of the base and upper frame to confirm squareness before tightening everything fully. On a large 400 mm machine, even a small twist in the frame becomes a large first-layer error across the bed.

Common defects

• Hotend temperature instability

Symptoms: Temperature swings around the setpoint, inconsistent extrusion, PETG clogs, and occasional under-extrusion during longer prints.

Likely cause: Budget hotend design, incomplete PID tuning, and thermal control that is not as refined as on premium machines.

Solution: Run PID tuning, confirm thermistor placement, inspect heater cartridge wiring, and reduce retraction stress until the hotend is stable.

What it is used for

• Large decorative parts and display models

The X5SA 400 class is well suited to oversized props, cosplay components, signage, and artistic prints because the build area is large enough to reduce part-splitting and post-assembly seams.