If your hobby is amateur radio or electronics you will often need coils in a variety of size, type, specification, etc.. Coils are no longer as easy to find as they were 20 years ago so you will have to wind your own.  With the help of this simple yet detailed manual you’ll quickly build a machine that can wind universal and honey comb coils, single layer and multi layer solenoids, close wound and space-wound coils, and pi-spaced coils such as those used for r-f chokes and transformers. And the mechanical counter gives you total control of accuracy.

Build a Universal Coil Winding Machine

David Gingery

David J. Gingery Publishing

Melting metal requires a heat resistant vessel with a higher melting temperature than the metal you are melting. Such vessels are called crucibles and they are generally made of clay or a mixture of clay and a binder such as ground up fire brick (grog) or graphite. Since they are made of clay, the process of making crucibles falls under the heading of pottery work and the technique is simple. You mix up a batch of clay, you ram the clay in a mold to form the crucible, you fire the formed crucible to harden the clay and you're ready to melt metal. It really is that simple, and this book shows you how to do it. You'll begin by learning how crucibles were made 100 years ago. Then you will take what you learn and convert it into practical information you can use today. Such topics as crucible composition and how to mix up a batch of clay. How to build molds and use them to form crucibles from your clay mix. You'll learn how to cure and fire your new crucibles, how to make crucible tongs and more. The information you need to get started is right here.

Making Crucibles

Vincent R. Gingery

Sheet Metal Technology is written in Dave s unique style with the beginner or vocational student in mind as he demonstrates how a product idea is conceived, developed and then produced by a single craftsman with basic tools. Subjects covered are safety in the shop, use of tools, layout and pattern development, various ways of forming and joining metal along with edging methods, corner systems and panel reinforcement. You will be introduced to the basic sheet metal shop where you will learn about various methods of forming sheet metal and in some instances even constructing your own tools including a rather unique and functional 24 leaf brake constructed of hardwood. The final chapter opens with a mass production operation set up to demonstrate the efficiency and economy of modern industrial technology. Then further projects are progressively introduced as skill is acquired. Such projects as a dustpan for the shop, a handy tool tote tray as well as plans for single and double hinge tool boxes. By this time you are an advanced student and ready to construct the unique portable charcoal grill and the impressive three drawer tool chest from the plans provided. Dave Gingery brings it all within your grasp and you will be amazed at what can be produced with tin snips, standard measuring tools and a 24 sheet metal brake.

Sheet Metal Technology

David J. Gingery

For the most part, plastic injection molding today is done with complex automated machinery turning out many thousands of items per day. But what if you are an experimenter, inventor or hobbyist and you just want a few parts made? We have attempted to answer that question for you by providing these plans for a small hobby size injection molding machine capable of molding slightly more than 1/2 ounce of plastic. (.59 ounce to be exact) This amazingly compact machine is designed to be used with a floor model style drill press having a minimum spindle travel of 3 inches. Thus, we refer to it as an injection molding attachment for a drill press. The unit itself measures approximately 12 inches long x 1-3/4 inch diameter at its widest point and weighs just 3 pounds. In operation, plastic is melted in the injection barrel of the machine by two 1/4 inch diameter x 2-1/2 inch long cartridge heaters. The temperature of the barrel is accurately controlled by a digital temperature controller and thermocouple arrangement. The force required to inject the plastic is provided by the feed mechanism of a drill press. Construction is simple and straight forward, but it will require basic metal working knowledge and the ability to operate a metal lathe and a drill press along with other hand and power tools associated with metal working and machine work in general. Here in this booklet you will receive detailed step by step instructions along with photos and drawings showing how to build your very own injection molding attachment for a drill press. A material list is provided. Suppliers are also identified and you will also receive a basic introduction to plastic injection molding in general. Before you know it, you will be creating plastic products of your own design. And you will have the capability to cast replacement parts, or even make copies of those hard to find items. The possibilities are indeed endless.

Build a Plastic Injection Molding Attachment for a Drill Press

See the best price to sell, buy or rent books by the David J. Gingery Publishing publisher. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by David J. Gingery Publishing

See the best price to sell, buy or rent books by the David J. Gingery Publishing publisher. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Build a Universal Coil Winding Machine

Making Crucibles

Sheet Metal Technology

Build a Plastic Injection Molding Attachment for a Drill Press