Woodworker's Journal summer-2009, страница 21
QI overheard a salesman say a portable table saw needed to be close to the power source, or have a thick extension cord. How does the electricity know what size the cord is, and why is this important? Chuck Kubin Denver, Colorado A Electricity flowing through a wire is like water flowing through a pipe: the longer and thinner a wire is, the less power flows through it readily. With a long, thin extension cord, the saw wouldn't get enough juice to perform properly. If used for a prolonged period, the motor would likely overheat and could burn out. A heavy-duty extension cord might be expensive, but it's a lot cheaper than replacing a motor! How much extension cord is enough? The smaller the American Wire Gauge number, the heavier the wire, and the longer the cord, the heavier it must be to handle the power. Check the power tool's manual or consult the manufacturer for specific recommendations. And always make sure the cord is properly grounded and plugged into a ground fault interrupt outlet, to prevent a dangerous shock. Sandor Nagyszalanczy SOMMERFELD'S TOOLS T-&U Wood/ DOVETAILS MADE EASY Sommerfeld's Katie Jig® System! Cut Perfect Dovetails with Sommerfeld's New Katie Jig® On your bench or on your router table the remarkable, easy-to-use Katie Jig ® makes quick work of complicated dovetail joints'. 1. New Half Bllrvd Accessory- Now you can cut half blind dov«uils on your Katie J«g*I 2- No complicated assembly - Juy wkc it OUT of the box. and use It immediately, 3. No lengthy manual to read - Just a few pages of ctoar, easy-to-follow directions show you how to use (he fig. 4. Only one set-up ne«ssa#y to cut pins & talb - All other dovetail jigs need two «t-up* to complete both parts of a joint. 5. Hand-held or router table operation -Wcwki perfect using either method of operation. 6. The perfect glue gap of ,006" - 010" between pins & tails Is produced by matched brtj&guidM- 7. Hastel-fret varlabte spacing Just choose your guide/tuning fork positions and go to work. Even use different thickness boards. For a FREE Catalog call today... Source Code WWJ0109 Toll Free 8B8-E28-9S6fl Visit us on the web... www.SOWIMERFELDTOQLS.coin The New Katie Jig® Only $239.™ 24 reader questions, answered Kitchen Islands Coffee Tables Dining Tables Hutches End Tables Custom Turnings Available Join our Digital Community, Sign up for updates and promotions at: www.osbornewood.com Call Jo receive your copy of our New Catalog |
