Member #1229252

Member Since: November 21, 2017

Country: United States

  • I would like to fine tune the autodriver board (BOB-13752) to account for the BEMF of this motor . Does anyone know the electrical constant of this particular motor (Ke)? There is a method for measuring it in STMicroelectronics application note AN4144 (page 14) relating to the L6470 IC. It would be a great value add for sparkfun to put a validated number on the web site under their specs (HINT).

    Contest: I own J&L Distilling Company 10 minutes down the road from your headquarters. Anyone from sparkfun that gets me that electrical constant (this week) will get their name in a drawing for a free bottle of our tasty booze. It only takes an oscilloscope and the motor. I probably could have measured it in the time it took me write this but isn't a contest and free booze more fun? I love the whole idea of your company. Great products, great creativity, (a little pricy BUT worth it). Rock on!

    Cheers,

    Seth

    sjohnson@jldistilling.com

  • I would like to fine tune the board to account for BEMF. I'm using the ROB-13656 stepper (125 oz.in). Does anyone know the electrical constant of this particular motor (Ke)? There is a method for measuring it in STMicroelectronics application note AN4144 (page 14) relating to the L6470 IC. It would be a great value add for sparkfun to put a validated number on the web site under their specs (HINT).

    Contest: I own J&L Distilling Company 10 minutes down the road from your headquarters. Anyone from sparkfun that gets me that electrical constant (this week) will get their name in a drawing for a free bottle of our tasty booze. It only takes an oscilloscope and the motor. I probably could have measured it in the time it took me write this but isn't a contest and free booze more fun? I love the whole idea of your company. Great products, great creativity, (a little pricy BUT worth it). Rock on!

    Cheers,

    Seth

    sjohnson@jldistilling.com

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