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Eccentric clamp
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Eccentric clamps are very simple and useful fixture components. Their advantage is their high force ratio. This article describes the basic design data and formulas for initial calculation of a round eccentric. |
Mechanical overload safety
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Mechanical overloads caused by material jams, operator error, mechanical damage during operation or improper maintenance. Mechanical overloads can be categorized as rotary and linear motion overloads. This article describes simple linear motion overload safety. |
Design method of inversion
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Among the large number of methods devised to improve or facilitate the design procedure there is the method of inversion. Its essence consists in inverting the function, shape, position and material of parts. |
Dust protectors
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The condition of equipment is vital for manufacturing. One crucial parameter is to keep dust, chips and dirt out from sliding surfaces (shafts, sliders, etc.) in order to prevent wear corrosion and breaks of the mating parts. This article describes some simple solutions for these problems. |
Trigger (finger clench grip)
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Triggers or finger clench grips are very common between manual control actuators. Triggers are useful as stand alone components or as parts of more complex ones. This article describes design data and principles when designing triggers. |
Holding an extension spring on a lever arm
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In designing high speed machinery we use cam actuated lever arms to provide specific motion (rocking mechanisms). Cam actuated lever arms maintain constant contact with cams through cam followers and strong springs. This article describes how to hold an extension spring on such lever arms. |
Fixed locating supports (rest pads)
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To locate workpieces from datum surfaces requires fixed supports (rest pads). This article describes some useful rules when designing fixed supports. |
Machining of mirror geometry cylindrical parts
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This article describes how you can manufacture cylindrical parts with mirror geometry by using a simple lathe. Shape and size tolerances (concentricity, diameters) are easy to control and secure functionality with mating parts. |
Across flats and hex
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Many times we have to design some special shafts and screws (non standard). Flats are cuts (hex or across flats) on these special parts to tighten or adjust them. |
C-washer nut
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C-washers are very simple and useful components for the tool designer. The C-washer nut has a build-in handle which can be very helpful when there is a lot of clamping to do. |
