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Angle micro adjustment
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Micro adjustment is a useful feature at mechanism and fixture assemblies. Unknown final position, rotation or linear movements must be regulated at assembly in order to work or clamp the work piece properly. This article describes an angle micro adjustment. |
Keyway position
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Keyways are essential in machinery design. Torque transferring or rotation fixing at levers, shafts, linkages, power posts and others is provided by a key and a keyway with low cost and reliability. |
Internal keyway
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One design principle which every designer must keep in mind is to design difficult to manufacture features with the appropriate cuts (holes and slots) in order to facilitate manufacturing and assembly. |
Airvent
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In many cases press-fitted connections can successfully be replaced by bonded (glued) connections. One minor disadvantage of such connection is the liquid state of the glue during installation. |
Pin hole location
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One method for securing a shaft in a hole and prevent it from rotation is the usage of a pin. Although this is a very simple design many of us don't know the correct location of the pin hole. |
Methods for correcting wrong center distance between pin holes
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Many of us have difficulties in final assembly, when we discover that we have wrong center distance between pin holes. How to fix this problem fast, cheap and functional? Read this article. |
Calculating the radius of a cylindrical milling cutter
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This article describes a method for calculating the radius (or diameter) of cylindrical spiral, disc, angle, slitting and form cutters when the cutting depth and the boundaries of the milling cut feature are known. |
Calculating internal radius with known boundaries
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Internal radius in design engineering is a very useful feature. Often we need to add a radius which passes through a given intersecting point (an edge) and tangent to two lines (surfaces). With a cad program such a calculation is a “piece of cake”, but without one, a puzzle. |
Spot face milling for precision assembly
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When a designer follows the road of fine mechanics and precision at higher levels, he must concentrate at every detail, every potential source of inaccuracy. Such a source is the elastic deformation due to thread-bolt forces. The solution: a simple spot face. |
Dial gauge (comparator) stand error
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When using a dial indicator with a self made or commercial dial gauge (comparator) stand, it is important to place the first vertical to the measurable surface. If the dial indicator positioned with a small angle (due lack of squareness), its reading will not be the true dimension. |
