Clamps in the way of your routing? Here's how you can use atmospheric pressure to displace those clamps and clear a path for your router.
5-board bench leg template^*
Porch-railing splat template
Powerful vacuum clamps can secure your work to a bench or a template to the work. Each is custom-made using common woodworking materials, vacuum tape, and a vacuum fitting.
valve to the jig. And to "power" the vacuum-producing device, you have to have an air compressor. Quite frankly, I don't think you can justify the outlay ncccssary for both the vacuum system and an air compressor strictly on the basis of its clamping capabilities unless you are a pro. But if you already have an air compressor, you should look closely at the clamping devices shown in the following pages and seriously consider investing in the necessary vacuum-producing equipment.
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THIS book is one of the series of Handbooks on industrial subjects being published by the Popular Mechanics Company. Like Popular Mechanics Magazine, and like the other books in this series, it is written so you can understand it. The purpose of Popular Mechanics Handbooks is to supply a growing demand for high-class, up-to-date and accurate text-books, suitable for home study as well as for class use, on all mechanical subjects. The textand illustrations, in each instance, have been prepared expressly for this series by well known experts, and revised by the editor of Popular Mechanics.