No BS Woodworking: Sanding Techniques
Welcome to another episode of No BS Woodworking, where we provide practical advice for your woodworking projects, without any fluff or sponsorships. Today's focus is on sanding—a seemingly simple task that can significantly impact the finish of your project.
Importance of Proper Sanding
- Sanding is critical for a smooth finish.
- Improper sanding can lead to defects such as divots, rounded edges, and uneven surfaces.
Types of Sanders
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Random Orbital Sander
- Most versatile and commonly used.
- Creates a random scratch pattern to avoid visible marks.
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Belt Sander
- Used for quick stock removal.
- Ideal for removing finishes or when correcting large mistakes.
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Pad Sander
- Less aggressive; useful for reaching corners.
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Oscillating Spindle and Belt Sanders
- Used for sanding curves and edges.
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Drum Sander
- Production machine for flat, square sanding.
Hand Sanding
- Use ergonomic hand pads and spray adhesive for firm sanding pads.
- Hand sanding is necessary for areas a machine can't reach.
When to Sand
- Before Assembly: Sand hard-to-reach areas beforehand.
- Be cautious of joints to avoid gaps.
Sandpaper Selection
- High-quality sandpaper is crucial.
- Cubitron Extract is recommended for its efficiency and longevity.
Dust Collection
- Essential for health and preventing sandpaper wear.
- Use adapters and clamps to fit any sander.
Proper Sanding Techniques
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Sanding Through Grits
- Follow a sequence: 80, 120, 150, 180, 220.
- Avoid skipping grits to prevent visible scratches.
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Using the Pencil Trick
- Draw pencil lines to ensure even sanding without hollows.
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Correct Pressure
- Apply light pressure; let the sander do the work.
Edge Sanding
- Use soft pads or foam pads to sand edges without creating sharp lines.
- Count strokes to maintain consistent pressure.
Final Preparations
- Water Popping: Optional technique to raise grain before finishing.
- Finish Inspection: Use raking light to check for imperfections.
Protecting Sanded Surfaces
- Use tape or pads to prevent damage.
- Be careful with plywood due to thin veneers.
Key Takeaways
- Quality sandpaper saves time and effort.
- Implement good dust collection for a better finish.
- Use techniques like the pencil trick and correct grit progression for best results.
Stay safe in the shop, and remember that effective sanding is key to a professional woodworking finish.