Symptoms
- Rip width varies slightly between cuts at the same fence setting
- Fence feels like it shifts slightly when locked
- Cuts bind more on one side of the blade
- Fence measurement doesn't match actual cut
Likely causes
- CommonFence locking cam or lever worn or misadjustedThe clamping mechanism can lose tension over time.
- CommonFence rail bolts loose, allowing the whole rail to shiftA loose rail changes the fence's angle relative to the blade.
- PossibleSawdust buildup preventing the fence from seating flushDebris under the fence can tilt it slightly.
What to do
- Unplug the saw before adjusting the fence system.
- Check the fence rail mounting bolts along the front and back of the table and tighten any that are loose.
- Clean sawdust from the fence rail and the underside of the fence body.
- Lock the fence and measure from the blade to the fence at the front and back to check for parallel alignment.
- If it's off, follow the saw's manual to adjust the fence's parallel calibration screws, usually located on the fence head.
- Retest by locking and unlocking the fence a few times at the same measurement to confirm it returns to the same spot.
Tools and parts
- Table saw
- Wrench set
- Tape measure
When to call a pro
If the fence still won't hold a consistent, square position after adjustment, a tool repair shop can inspect the fence rail and locking cam.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.