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⚖️ Belt Tension Check – Maintenance Guide


🌟 Objective

Maintain print quality by ensuring correct belt tension for X/Y axis.


⚖️ Tools Required

  • Hex key / screwdriver (if adjustment needed)
  • Tension test tool (optional) or use sound test

⚠️ Warning

Note

Loose belts cause layer shifting, skipped steps, or wavy lines. Over-tight belts can damage motors or wear pulleys.


🔍 Inspection Frequency

Usage Level Check Belts Every
Occasional Use 2 months
Heavy Use 3–4 weeks

🔧 Check Procedure

  1. Power off the printer.
  2. Gently press the center of the belt — it should have some resistance but not feel loose.
  3. Alternatively, pluck the belt like a string:
  4. A firm "twang" sound indicates good tension.
  5. A dull or floppy feel means adjustment is needed.

⚖️ Adjustment (if applicable)

  • Locate tension screws on the X and Y axis carriages or idler mounts.
  • Tighten gradually and test often.
  • Avoid overtightening.

📅 Final Notes

  • If you hear grinding or skipping during prints, check belts immediately.
  • Inspect pulley set screws for tightness as well.