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erg s! q _IqM sly/tea pue 3103100119)! a5 sumzay spouse/a JO Aimee pyas mo; 319913 01 pay/piles pue .08an (10131110615 3 lysadgo mow 319913 01) uonmauas ..asuanau.. 6m ' ‘ Master Patterns There are two ways in which a master pattern can be presented to 3D Keltool; the SAME generation, or REVERSE generation master pattern. The SAME generation is by far the most common, and should be used unless the geometry of the part makes it very
difficult to adequately finish the SL master pattern. Same Generation Master Pattern Reverse Generation Master Pattern (Direct Method) (Indirect Method) Sample SL Core Provided Returned 30 Keltool Core Sample SL Pattern Provided Returned 30 Keltool Cavity The master pattern submitted is identical to the core or cavity The Master Pattern provided is an inverse of the core and cavity required
required, plus some allowances for shrinkage. (the positive part geometry). This method allows component that has thin ribs or stub walls (that are difficult to finish as a mold cavity) to be easily ﬁnished.
This master pattern is similar in appearance to one-half the molded port, as it
would look mounted on a blank insert. This part is then mounted down inside
a walled box (chase box) of the same size as the finished insert. ...
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- Spring '10