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You are here: Home / Radio Show / #434 – Use The Protection Circuit

#434 – Use The Protection Circuit

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  • Ozzy Man
  • Uploading files to manufacturers like JLC
  • Positive vs negative layers
  • Etchant
  • Kickstarter and China Manufacturing: You’ve got it all wrong
  • Cost of the first prototype
  • Building with custom stuff
  • OSHWA will not be doing a conference in September in China
  • Video about free energy
  • Dave is working with some OLD chips
  • Working with an unprotected 18650
  • LCDs don’t flow in freezer temps
  • Temperature cycling
  • USB 4.0 Spec Announced
 
Thanks to Sparkfun for the image of the battery 

Comments

  1. wktdesign says

    March 20, 2019 at 8:27 am

    Could you please post the link about etching solder mask.

    • Pete Kirkham says

      March 22, 2019 at 11:36 am

      https://twitter.com/_MG_

      It appears they’re curing the solder mask without removing the pcb from the mill, so you don’t need to be flat to 0.01mm, only repeatable. The Othermill specs are one thou 0.001″ repeatability, 25.4 microns, so it shouldn’t be possible on that hardware, but _MG_ mentions some changes he’s made.

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