Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Homebuilt Firearms Review

Homebuilt Firearms
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Homebuilt Firearms ReviewI originally had an idea for building this firearm model in 2009 based on a ball detent chamber lock and a bar type magazine, with the idea it could be built in an average home garage using common tools: a Drill Press, Angle and Bench Grinders, and a Wire Welder, along with a hacksaw, files, common tools, etc.
This book describes the project; beginning with a used .22 barrel purchased at a local gunshow, and then using the tools and $5 worth of scrap steel from a local fabricator, the remainder of the mechanism was built, first as a Single Action assembly, ( Cocked prior to each shot..) then modified into a Double Action, where the trigger pull initates chambering of each round then releases the hammer for firing.
The book has about 120 pages, is a large 6.69" x 9.61" format, glossy covered softback with fifty drawings and photos.
It should be ideal as a guide for gun enthusiasts, Hobbyists, Builders and Sportsmen to fabricate a homebuilt firearm with their own ingenuity and skill, ending with a real, working firearm.
There is a responsibility required as to safety in the entire workplan, wearing of safety protection, avoiding all manner of hazards-- that is a part of any endeavor by a responsible person.
I hope the instructions and pictures provide an educational and interesting guide to those interested in firearms, hobby construction, and using shop tools.Homebuilt Firearms Overview"Homebuilt Firearms"is a great initiation for hobbyists who wish to try building a real gun from scratch, using only standard garage tools, NOT milling machines or lathes.Such a project is definitely a great learning and skill building experience for a person who enjoys gun sports and shooting-- and unusual, challenging projects.Starting with a used .22 barrel from a gun show, andadding some scrap Steel, a hobby builder can utilize his ingenuity and skills... using a drill press, grinders, wire welder, a hacksaw, files, etc.and can indeed build a firearm, first a repeater Single Action model, then a Double Action weapon.The rifle project described here is a functional ten shot .22 rifle.It offers a fun and rewarding building experience for any mechanically minded individual, an achievement to be enjoyed and used.

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Machine shop Practice Vol. 1 Review

Machine shop Practice Vol. 1
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Machine shop Practice Vol. 1 ReviewThese two volumes tell me more than the other 7 or 8 books on machine shop that I have. Written very clearly and concisely, extremely easy to understand for the amount of information it puts out. Explains many of the details of machineshop and how to sharpen your own cutting tools, how to thread, many of the common types of shop machines and how to use them. This is the best shop book that I have read to dateMachine shop Practice Vol. 1 Overview
Includes over 760 illustrations and 70 tables in two volumes.
Offers sections on numerical control; grinding wheels (that includes the newest abrasive materials); single point cutting tools and tool wear; basic drilling machine setups; and formulas for estimating the power required for planing.
Provides detailed discussions on methods of setting up the workpiece on milling machines, horizontal boring machines, planers and shapers.


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Machine Shop Trade Secrets: A Guide to Manufacturing Machine Shop Practices Review

Machine Shop Trade Secrets: A Guide to Manufacturing Machine Shop Practices
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Machine Shop Trade Secrets: A Guide to Manufacturing Machine Shop Practices ReviewThis has to be the most unusual book I have ever read. Each chapter contains a number of separate numbered paragraphs. Each paragraph contains the author's thoughts about some specific aspect of machining. This organizational format is almost bizarre, but somehow strangely effective. This book has the best description I have ever seen on what cutters are best used for particular functions. I also really enjoyed the do's and don'ts on NC machining. I've gone through it twice now in one week and will probably read it a third time before long.
This is not the usual textbook on machining with numerous pages devoted to cutting theory that somehow never quite gets to the point of telling you what feed and speed to use to accomplish a specific task. Nor does it have an entire chapter telling you what a lathe is and how the various parts are named. The utility of many such treatises is probably exhausted once past the point of contributing to some academician's case for being awarded tenure. This one is really different. It really has a lot of good advice that's applicable to virtually any environment.
Some of the points the author makes may seem trivial at first (buy lots of tools, for example)as noted by at least one other reviewer. But if you take the time to read and understand what he's saying, you'll see there is some interesting and really decent advice here. Buying special purpose tools rather than the 6-in-1 kind, for example, not only produces better work, but helps avoid time consuming setups and reduces bad parts.
I've got a suggestion for the author for another book. He might organize it by "how to" topic. For example, "how to cut an interior keyway". There are lots of ways to do most of these things, ranging from simple hand tool methods to megacredit special purpose machinery. It would be interesting (for me at least) to see 4 to 5 ways presented for each "how to" with a brief discussion of their pluses and minuses.
Machine Shop Trade Secrets: A Guide to Manufacturing Machine Shop Practices OverviewYou will discover ways to:

Work faster.
Select, make, and grind cutters.
Surface grind blocks, pins and shapes
Cut threads, knurl parts and eliminate warp.
Choose realistic feeds, speeds and depths of cut.
Remove broken taps, drill bits and other hardware.
Apply proven CNC techniques to maximize output.
Improve surface finishes and hold tighter tolerances
Assist engineers with design and manufacturing issues.
Improve indicating skills and develop a 'feel" for machining.


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