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Converting from sheetmetal parts to plastic parts?

Question asked by David Denwalt on Oct 5, 2009
Latest reply on Oct 8, 2009 by David Denwalt
I do some work for a friend, and he has asked me to look into changing some parts from sheetmetal to plastic for possible production. I do not have any knowledge of how a part is considered  to be compatible (with some changing of design) for production in plastic. I thought I would post on this forum to get some direction on how to proceed. I have discussed this one time with a plastic company (to remain unnamed) earlier in the year, but did not gain any ground. after 4 weeks of non response, they finally notified me that they were not interested. I have the parts models, we have had a few sets formed up, but an issue was raised about producing in plastic would be considerably cheaper. Thanks in advance to any and all that would be willing to shed some light.