Bandsaw blade tracking involves the alignment and adjustment of the blade on the saw’s wheels to ensure it runs smoothly and accurately during operation. Proper tracking is essential for precise cuts, preventing blade wear or damage, and maintaining the efficiency of the bandsaw. Below is an in-depth guide to blade tracking:
1. Importance of Blade Tracking
Blade tracking ensures the blade runs centrally on the bandsaw wheels, reducing drift and wear. Poor tracking can lead to:
- Inaccurate Cuts: Misaligned blades may veer off the cutting line.
- Blade Damage: Incorrect tracking increases the risk of blade breakage or uneven wear.
- Machine Stress: Misaligned blades can strain the bandsaw, affecting its lifespan.
2. Steps for Proper Blade Tracking
a. Wheel Alignment
- Ensure both the upper and lower wheels are aligned vertically and their axes are parallel. Misaligned wheels can cause the blade to drift or rub against the guides.
- Regularly check wheel alignment as part of maintenance, especially after heavy use or transporting the bandsaw.
b. Blade Installation
- Place the blade around the wheels, ensuring the teeth face the correct cutting direction.
- Seat the blade properly within the wheel grooves.
- Apply appropriate tension—tight enough to prevent slippage but not so tight as to overstress the blade or wheels.
c. Initial Tracking Adjustment
- Start the bandsaw at a low speed and observe the blade’s position.
- Ensure the blade runs centrally on the wheels, avoiding contact with the wheel edges or rubbing against the guides.
- If the blade drifts, make slight adjustments to the tracking mechanism.
d. Tracking Mechanism Adjustment
- Use the tracking adjustment knob or mechanism (usually near the upper wheel) to align the blade.
- Turn the adjustment in small increments while the saw is running, checking the blade’s movement until it stays centred.
- Avoid making drastic changes, as they may overcorrect and cause instability.
e. Blade Tension Check
- Insufficient tension can cause the blade to slip off the wheels, while excessive tension can stress the blade and tracking system.
- Follow the manufacturer’s recommendations for proper tensioning.
f. Monitoring During Operation
- Watch for signs of improper tracking, such as drifting, unusual vibrations, or rubbing noises.
- If issues arise, stop the machine immediately, adjust the tracking, and resume operation after verification.
3. Maintenance for Consistent Tracking
Proper maintenance helps sustain blade tracking:
- Regular Inspections: Check wheel alignment, blade position, and tension periodically.
- Lubrication: Apply lubrication to moving parts, like the tracking mechanism, to reduce friction and wear.
- Component Care: Inspect guides, wheels, and the blade itself for wear and replace parts as needed.
4. Operator Technique and Best Practices
- Train operators to maintain consistent pressure and alignment when feeding material into the blade.
- Avoid forcing the material; let the blade do the cutting to prevent wandering or uneven tracking.
Conclusion
Proper bandsaw blade tracking is vital for optimal cutting performance, blade longevity, and machine efficiency. By aligning the wheels, installing the blade correctly, and adjusting the tracking mechanism carefully, you can achieve accurate and stable cuts. Regular monitoring and maintenance ensure consistent tracking, reducing downtime and improving the bandsaw’s overall performance.