Fully-Protective High-Speed Sheet Laser Cutting Machine PU
All-In-One Fiber Laser Cutting Machine GR-H
Single platform plate laser cutting machine F
High-speed Sheet Fiber Laser Cutting Machine H
High power sheet laser cutting machine PG
Full-protective Fiber Laser Bevel Cutting Machine PB
Precision sheet metal laser cutting machine S
Ground-rail Sheet Fiber Laser Cutting Machine GR
3D Beveling High-Speed Laser Tube Cutting Machine V12 PRO
High-speed Tube Laser Cutting Machine V12
Efficient Tube Fiber Laser Cutting Machine TG
Three-Chuck Heavy-Duty Tube Laser Cutting Machine M
Three-chuck Tube Fiber Laser Cutting Machine TS
Heavy-duty Four-chuck Tube Fiber Laser Cutting Machine TZ
High-speed Tube Fiber Laser Cutting Machine TH
Small Tube Fiber Laser Cutting Machine TM
Super Heavy-duty Tube Fiber Laser Cutting Machine TR
Double-platfom Sheet and Tube Fiber Laser Cutting Machine PGT
Efficient Sheet and Tube Fiber Laser Cutting Machine FT
Water-cooled Handheld Laser Welding Machine HW
Water-cooled Handheld Laser Cleaning Machine LC
Automated Profile Loading & Unloading System H-ALS
3D Five-axis Fiber Laser Cutting Machine CELL
Sheet Metal Warehouse Loader/Unloader LGD+RW
Automatic Sheet Metal Loading Device LGS
Automatic Cantilever Sheet Metal Loading Device LCS
Cantilever Sheet Metal Loading Device LCA
Intelligent Sheet Metal Production Line ATL
Coil Laser Cutting Production Line R
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Problem Description
Many users report that after prolonged use, their laser cutting machine begins producing imperfect round holes (e.g., 30mm diameter). Instead of clean circles, cuts appear oval or polygonal, significantly affecting part accuracy.
Root Causes of Non-Round Holes in Laser Cutting Machines
1. Incorrect Motion Parameters
Excessive acceleration/jerk settings cause mechanical stress on gears
High idle speed (>40mm/min) worsens wear over time
Corner smoothing (low-pass filter) set too high (>4Hz) distorts circular paths
2. Mechanical Wear in Drive Systems
Gear & rack backlash develops from prolonged use
Worn-out reducer gears lose positioning precision
Improper meshing clearance (should be 0.06mm for X/Y axes)
3. Failed Motion Components
Severely damaged reducers cannot maintain accuracy even after adjustment
Proven Solutions to Restore Round Cutting Accuracy
✔ Parameter Optimization for Laser Cutting Machines
Parameter
Recommended Value
Cutting Acceleration
≤0.4G
Idle Speed
≤40mm/min
Corner Low-Pass Filter
≤4Hz
✔ Gear/Rack Maintenance Procedure
Check backlash using 0.5mm solder wire
Adjust meshing clearance to 0.06mm (X-axis single drive) / 0.06mm x2 (Y-axis dual drive)
Re-tighten all mounts with torque wrench
✔ When to Replace Components
If holes remain distorted after:
Parameter adjustments AND
Mechanical recalibration → Replace the reducer
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