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  • Users: itsdonny
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  1. itsdonny

    Macro Lens Design

    I'm designing a device that has a small scale. I put a small magnifying lens (10mm diameter) over the top of the pointer to magnify the area. Currently it sits about 1.5mm above the text/scale. However with this lens it really needs to sit about 9mm over the top of the text to get the ideal...
  2. itsdonny

    Spring Retaining Ball Joint

    I need to create a 10mm metal ball joint like the one pictured and I'm wondering if anyone has any 3D files of something similar I could look at? Thank you!
  3. itsdonny

    Need Help Choose LED Drivers

    Hi, I'm designing a couple of different portable LED lighting systems (Li-Ion powered 18650 batteries) and I am searching for a manufacturer for the LED drivers. Below I have listed the specs of the different parts of the system. I need some ideas on which LED drivers would be best suited for...
  4. itsdonny

    Choosing The Right Battery Management IC for Li-Ion 18650

    I'm trying to find the right solution for charging a product I'm having designed. Here are the details: The unit consists of 3 18650 Li-Ion batteries. Depending on the unit the batteries will range from 1400mah for the entry level units to 3300mah each for the higher end units. I want to be...
  5. itsdonny

    Syncing 2 LED Strobes Via RF

    I hired an electronics engineer to design a portable LED lighting system that has bluetooth for controlling the LEDs (color change, strobe, brightness, etc.). One of the objectives is to have the ability for each LED lighting system to sync to one another. So for example if one system is...
  6. itsdonny

    Plastics That Can Transmit UV-C

    I'm looking for plastics that can transmit UV-C Hopefully down to about 150nm. Thanks for any suggestions, Don

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