Woodworker's Journal 1985-9-5, страница 32
Special Techniques Continued Photo 22 Photo 23 Turning Trivets Another product suitable for turning on your new vacuum chuck is a round trivet, These can be made from most any type of wood and there are no rigid rules for their size or shape (Fig. 5). Use the same template (for routing the recess) and chuck as for the pocket mirrors. Start by cutting various size circles from whatever scrap you have around the shop. They can be anything from -4 to 12 in. diameter. Thickness can be almost anything from 3/* to I in.; you might even go down to '/i in. for smaller trivets. Use a compass to mark a circle the same size as your template on the bottom of each blank. This will make it easy to center the template on the blank. Since cach blank is going to be a different size, you cannot use the work-32 holding fixture that we enjoyed for the pocket mirrors Instead, clamp the blank to your bench and use doublefaccd tape to attach ihe template to your workpiece. Put the tape on the underside of the template, then remove the paper liner. Dust oil the workpiece to ensure good adht aou between it and the template. Align Ihe hole in the template with the circle drawn on the blank, and press the two together. Using the same router, template guide and bit lhat you used for the mirrors, route the hack of the blank. I'se the mirror chuck lo attach the blank to the lathe (Photo 24). You will need to reduce the lalhe speed for turning larger trivets but about 1200 rpm should be fine for anything up to about 6 in. dia. Rough turn ihe trivet to round /. V-IN WllU'V'iitUWve 1 CMA.. WITW <X»T> C>i/v \NWvt . uc Photo 24 using ihe '/s in. deep fluted bowl gouge (Phoio 25). At this point, you are on your ow n. lei your imagination run wild. You can create a variety of edge profiles. Try them all: bullnose, square, beveled or a combination of several. Also be creative w ith the face of your triveis, using beads and coves, or a series of rings cut w ith ihe up of the skew i Photo 26). You can even just leave them plain and Hat. Sand the trivet with a power sander ami h\ hand as required by the type of wood you are using. 1 usually stop at 32(1 or 4tx> grit. Finish with urethane oil (available from Crafl Supplies. USA). Apply a liberal coat and let it penetrate lor about 15 minutes, then wipe off the excess and let dry overnight. GJ] Vacuum Chuck Kit The EZ Vacuum Chuck kil contains a male quick disconnect coupler, a sealed ball bearing, a tapered hand knob for easy attachment of the vacuum source, a threaded tube which is adjustable to most spindle lengths, a nose assembly with vacuum venis and an adjustable or removable center point. List price for ihe EZ Vacuum Chuck kit is $49.95 plus S & H from The Turning Post, 619 North 2000 West, Ogden. UT 84404: tel. (801) 7311036. The Woodworker's Journal |
