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Blacksmithing |
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| Casting | Back Yard Metal Casting |
| Drafting | How to Make a 3D Screw (Right click on link and click on Save Target As)
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| Generators | Building a Generator using a Lawnmower
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| Hydraulics | Basic Hydraulic Theory Hydraulics Manual (army)
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| Miscellaneous | How to make your own springs Tap Drill Chart Free Metal Boat Plans
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| Welding |
Introduction to Arc Welding Welding Theory and Application (US Army) Build your own Welders Spot welder Arc Welder |
