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¶
- Power off the printer.
- Gently press the center of the belt — it should have some resistance but not feel loose.
- Alternatively, pluck the belt like a string:
- A firm "twang" sound indicates good tension.
- 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.