On Sunday 26 August 2018 03:14:42 Erik Christiansen wrote: > On 25.08.18 11:54, gru...@manlymail.net wrote: > > has anyone tried this > > > > https://www.sparkfun.com/products/13752 > > Nope, and at that price, I'm really not likely to. > OK, maybe there's a convenient way to talk SPI to the thing, but what > worries me is that it will "autonomously execute movement commands". > I.e. You'll have to send it a protocol packet with step count and > presumably a feedrate, then it's off like a dog after a stick, IIUC. > > For small steppers, I'd rather spend half the money on a BED: > > https://www.sparkfun.com/products/12859 > > which admittedly will only do 2A, even if you stick a heatsink to the > top of the chip. But at least it responds to each step input given. > (I'm not sure if that's the Allegro chip which Gene shies clear of, > though.) > > Erik > Thats a newer chip, and I might even have data on it as I have an allegro databook hiding on the shelf above me as I sit here in the dark, its not quite 5Am here. But I've never seen or used it, too small to interest me.
-- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
