49 - Cabinet Maker's Tool Chest, страница 6
Lathe-Mounted of a table saw spins at 3,000 rpm's.) DISK & TABLE. The disk sander is made up of two main parts. A sanding disk provides a hard, flat surface to attach the sandpaper. And an adjustable table supports the workpiece. To sand a bevel on the edge of a workpiece, the table is designed to tilt from 0° to 45°, see photo A' at left. As another option, you may want to build a simple jig that slides across the table and allows you to sand perfect circles, see photo 'B.' SANDING DISK At first, I considered using a store-bought sanding disk. But as I was rummaging around in the scrap bin, I found the ideal material to make my own sanding disk — Medium-Density Fiberboard (MDF). MDF. The nice thing about MDF is it's a hard, durable material that will stay flat in use. To add rigidity to the sanding disk, 1 used 3/4"-thick MDF (It's available at many lumberyards and home centers.) FACEPLATE. I also needed a way to secure the sanding disk to the lathe. The solution was to attach a faceplate to the disk and then mount it on the lathe. (I used a 6" faceplate.) DISK SIZE. But before attaching the faceplate, it's best to cut the disk to rough size. It's easy to establish B. Circle Sanding Jig. ► By adding a simple circle sanding jig that slides across the table, you can sand perfectly round disks in a matter of minutes. By mounting this shop-made disk sander to your lathe, you get two tools in the space of one. One of the best ways to save space in a shop is to use one tool to accomplish two jobs. That's the idea behind the lathe-mounted disk sander that's shown above. As a disk sander, it makes quick work of sanding to a line or himming the mitered end of a workpiece to get a perfect fit. And when you want to turn a project on the lathe, it only takes a minute to remove the disk sander. SLOW SPEED. Besides doing double duty, mounting this disk sander to a lathe has another advantage. Since the speed of the lathe is adjustable, the sanding disk can be set to spin at a relatively slow speed. (I set mine around 750 rpm's.) This way, the wood isn't as likely to burn as with other disk sanding accessories I've used. (For example, a sanding disk mounted on the arbor A. Tilting Table. ► Sanding a bevel on the edge of a workpiece is a snap with this disk sander. Just tilt the table to the desired angle and tighten a knob to lock it in place. 6 ShopNotes No. 49 |
