Woodworker's Journal 2009-33-2, страница 66
Today's Shop . . . there is no single clamp right for every woodworking task. PRO TIP: Keep all your metal clamps corrosion-free by spraying the bare surfaces with a rust-preventative spray, like Boeshield T-9. Spray all clamp screws with WD-40 or other light lubricant to keep them turning smoothly. ther you pull it, the tighter the clamp gets. The lever on Lee Valley's aluminum assembly clamps simply clicks down to tighten; a small adjustment knob adjusts the clamping pressure. C-Clamps and Wooden Handscrews C-clamps have been a tried-and-true part of a woodworker's basic clamping arsenal, offering lots of clamping power for smaller jobs. Woodstock International's I)3200-series C-clamps feature a quick-release, allowing gross changes in clamping thickness without having to spin the screw around and around. The limitation of most C-clamps is their relatively shallow throat depth, but deep-throat clamps, such as Woodstock International's model D2800, allow a greater reach for clamping wider assemblies. Hand screws have long wood jaws that also offer a deep reach and can clamp both parallel or angled surfaces. To save money, you can buy handscrew kits that supply the hardware while you make your own wood jaws. Spring Clamps and Hand Clamps Easily applied with a single hand, spring clamps are very handy for quick fastening and gluing jobs that don't require much clamping pressure — models, small parts, trim and such. Available in a wide range of sizes, spring clamps with floating A dial on Bessey's DuoKlamp reverses the direction of the clamp's pump action. Panel clamps can handle light glue-ups or guide portable power tools with ease. jaws that apply flat pressure to the surfaces they clamp are best for woodworking. Bessey's ingenious VarioClippix (see top photo, page 64) feature an adjustable top jaw, allowing them to handle a greater range of part thicknesses. Hand clamps such as Wolfcral't's AccuGrip and Pony ISI) clamps tighten with the pressure of your grip: The harder you squeeze, the more clamping pressure is applied. They lock just like locking pliers (e.g., Vise-Grips); a small button or lever releases the jaws. Panel Clamps Double-duty devices, panel clamps are not only useful for gluing up wide assemblies that don't need too much clamping pressure, but also serve as clampable fences used to guide portable power tools. For example, clamping MLCS's Boom clamp across a plywood sheet guides a portable circular saw for a straight cut when cutting a full-sized sheet into more manageable pieces. Affinity's Bora clamps feature pivoting jaws that can clamp at an angle across a panel. Band Clamps Employing either a fabric or a metal strap that wraps around an assembly, band clamps are great for clamping rectangular, rounded or even irregularly shaped projects. Jorgensen's heavy-duty band clamp has a strong screw and crank that tightens its long canvas strap with great force. For lighter work, MLCS's Merle clamp has a metal band to apply clamping force, and WolfCraff s one-hand band clamp tightens its fabric band with a ratcheting action. Both include corner blocks that slide on the band, to use for rectangular frame, box and cabinet glue-ups. Today's Shop continues on page 68 ... 66 April 2009 Woodworker's Journal |
