On a segment of Jay Leno's garage they showed their use of a 3D printer. Antique car parts that were no longer available were modeled in plastic. But, rather than using the plastic part, it was used as a prototype and a mold was made from it. That mold was then used to cast metal parts. The 3d CAD Model was also used for finish machining of the casting.
Really interesting and expensive for one part, but the unit cost comes down rapidly if several are needed. Most of the cost is in the creation of the model. Of course the complexity of the casting is part of that too.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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