| Table-Saw FAQ |
From "Ask DIY"
episode ADI-710 |
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Table saws (figure A) are one the most useful power tools in the woodworker's shop. In recent years, modern models have gotten both lighter and less expensive. DIY's woodworking expert Bruce Johnson answers frequently asked questions about this essential tool. Tip: When shopping for table saws, one of the most critical variables is the type of fence that is used (figure B). The fence is what allows you to make precise, straight cuts on the saw's stationary blade. On higher quality table-saws, the fence adjusts back and forth along two tracks, and the adjustments are stable and accurate. On lesser-quality models, the fence may only be anchored on one side. Fences that are loose at the far end may result in uneven cuts. Q: How do I clean the buildup off my table saw blades. A: If you're working with common woods like pine, there will be resin and pitch still present in the pores of the wood (figure C) - When you cut through this kind of wood, the pitch can build up on the outside of your saw blade (figure D). Over time, the buildup can become so bad that it may cause the blade to have trouble cutting, or it may cause burns on your wood.
- You can clean your blades while they're on the saw, but if you do make sure to disconnect the power cord before you begin.
- An easier method is to clean the blade when you're removing them to have them sharpened. The buildup can be removed using a furniture-cleaner known as buildup remover. Apply the cleaner directly onto the blade, and use an old toothbrush to scrub away the buildup (figure E). For stubborn buildup, follow up with some cleaner and fine steel-wool.
Q: I've heard that carbid-tipped blades are the best, but can they be sharpened. A: Carbide-tipped blades (figure F) are indeed superior in that they stay sharp longer, and make cleaner cuts. They can be professionally sharpened. They typically come back from the sharpener with the sharp points covered in a rubberized coating to keep them from getting nicked during transport.
Q: How can I get more accurate cuts using the miter gauge that came with my saw? A: Unfortunately, one of the weaknesses of many saws is the miter gauge. Typically their surface is not large enough to offer the stability needed to make precision angled cuts. You can enhance your miter gauge by attaching a piece of wood to your miter gauge offering a larger support-surface (figure G) to support your wood as it's pushed through the cut. Most woodworkers make this addition to new table saws before making their first cut. Most miter-gauges come with screw-holes already built in to accommodate this addition.
RESOURCES :
Table Saw Techniques
Model: 0806942681
Author: Roger W. Cliffe
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