Valuable Mechanisms: The Design & Engineering Blog of Justin Ketterer

[...] this helicopter-like machine was the spindly, relatively unsupported structure supporting the main rotor.  Helicopters with powered main rotors usually have beefy structures supporting the main rotor [...]

[...] . Can produce sparks, but doesn’t generally create harmful fumes. Multiple layers of sheet metal can be joined–up to four [7]. Efficient use of input energy [7] Drawbacks include [1]: [...]

[...] plane: “[...] Gauge” (Radius, Thread Pitch, Nut & Bolt, Wire & Sheet Metal, Hole Diameter (Plug)) I want one of each of these in my toolbox.  Well, [...]

[...] upper metal, but an anvil below compressed below the rivet and workpieces then forces the lower sheet metal to deform around the legs (which flare outwards from the shape of the anvil) to form a water [...]

[...] Screws & Ball Nuts Plain Bearings Ball Joints Leadscrews Ballscrews Cams Gears Spur Gears Helical Gears Double Helical Gears Bevel Gears Hypoid Gears Worm Gears Rack & Pinion Gears Epicyclic / [...]

[...] of elements within a four-bar linkage system.  I explicitly recall my prof saying, “Four-bar linkages are quite good for motion in-plane, but it’s quite difficult to get them to operate [...]

[...] (Though it should be noted that the machine head itself can rotate on top of the tower). Four-Bar Linkages A unique machine element which can effect complex machine motion, while still serving as [...]

[...] ’s Handbook, 28th Ed.,” Erik Oberg, Franklin Jones, Holbrook Horton, Henry Ryffel, Industrial Press New York, c. 2008, 2692 pages. Note: Machinery’s Handbook in particular is a great resource [...]

[...] , 28th Ed.,” Erik Oberg, Franklin Jones, Holbrook Horton, Henry Ryffel, c. 2008 Industrial Press New York, 2692 pages 2.  http://en.wikipedia.org/wiki/Rivet (nothing used from Wikipedia [...]

[...] oxide which (with a lower melt temp) burns, adding heat and causes the cut to progress [3]. Arc Welding In arc welding, the material is fused through the heat of an electric arc at the work surface, [...]

[...] noise if running in high speed applications because the teeth do not engage gradually. Helical Gears Helical gears, while being more complex to make than spur gears, are much better suited for high- [...]

[...] these rivets is that both side of the rivet have to be accessible for assembly. Semi-Tubular Rivets Semi-Tubular rivets are much easier to install than solid rivets because the shank which protrudes [...]

[...] is a great resource for the gritty details of performing welding at the level of the welding operator, including such things as recommended current settings for arc welding, and a fairly [...]