Regular maintenance of your 3D printer is essential and provides two key benefits:
The following sections outline the recommended maintenance areas.
The Z-axis lead screws should be inspected and lubricated every 1–3 months, depending on printer usage, grease type, and environment. If the screws appear dirty or movement becomes resistant, perform maintenance immediately.
Cleaning
Before lubrication, clean the lead screws thoroughly to remove dust, debris, and old grease. Use a cloth or toothbrush. Isopropyl alcohol can help dissolve old grease.
Lubrication
With the build plate homed, apply a thin layer of grease to the exposed lead screws. Move the bed downward and apply another thin layer. Home the printer again. Repeat this motion several times to distribute the grease evenly. Wipe away any excess grease near the lead screw nuts.
Recommended lubricants
Most greases are suitable. NLGI Grade 2 grease is recommended.
Linear shafts should be maintained every 2–4 weeks, or sooner if they appear dirty or dry. High-temperature printing or lower-quality oil may require more frequent maintenance.
Cleaning
Wipe the shafts with a soft cloth or brush to remove dust and debris. Using isopropyl alcohol improves cleaning effectiveness.
Lubrication
Apply a light machine oil designed for linear motion. Use a brush or cloth, then move the printhead to distribute oil evenly into the bearings.
Contamination protection
Keep the enclosure closed when possible and clean more frequently in dusty environments.
Recommended lubricants
Oils with ~68 cSt viscosity and no additives are preferred. Sewing machine oil or 3-in-1 oil may be used temporarily but require more frequent reapplication.
The printer contains four fans that should be checked regularly for dust buildup:
With the printer powered off, use compressed air to remove dust. Hold the fan blades steady while cleaning to prevent overspinning.
After extended use, the hot end and nozzle may require replacement.
Reference torque
Tighten the nozzle while hot to 1.5–2.0 N·m.
High-temperature printing accelerates thermal grease degradation.
Application guide
Operation steps
When replacing the nozzle, heat it to the recommended temperature for the current filament and wear thermal gloves to prevent burns.