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  • Users: Enginyr
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  1. Enginyr

    two part question using 3.8 VDC batteries (dc to dc converter?)

    Steven here. Mechanical engineer. I have a pretty nice mechanical design here using a 3.8v dc battery supply and a 3.4v 13A LED. I need to use some 5v fans. So my question is.... how to get the 3.8v down to 3.6V to 3.3V and.... how to get the 3.8V up to 5V-6V There are no electrical...
  2. Enginyr

    How to design a 20" Dia. Bearing 2,000 RPM

    Does anyone have experience in designing a bearing like this. If I could also have your e-mail that would be helpful.

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