On 26.08.18 04:51, Gene Heskett wrote: > On Sunday 26 August 2018 03:14:42 Erik Christiansen wrote: > > 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.
TBT, I bought a couple of them for a couple of small steppers I have lying about - thought they might be useful for a toolchanger or indexer, but need a round TUIT before starting. Been clearing outdoor combustibles instead, after digging 40+ meters of uphill ditch for a new water pipe. Winter's not as dry here as up north in New South Wales, but there's no hay or straw to be bought on the entire Aussie east coast, and they're trucking it in from the west coast on road trains (three semitrailers behind each prime mover). That's a 7,000 km return trip. A 30,000 ton shipload of wheat has just arrived from the same source, but they need one a week now to keep the remaining animals alive. It's a bit stiff for winter, and no-one's looking forward to summer. We've seen reports of raging fires in USA and Europe, which is becoming tragically common in summer now, but when we have 33 waterbombers, 870 firefighters, and 270 firetrucks on two fires here in the depths of winter, then it's nigh on not entirely amenable any more. Erik ------------------------------------------------------------------------------ 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
