Re: [Emc-users] stepper driver

2018-08-26 Thread Chris Albertson
These small stepper drivers are really common on 3D printers. 2A is more then enough. My printer has 5 small steppers and routinely printes at 60mm per second. The new stepper drivers are much nicer because they output nicer analog-looking waveforms with sloth sine waves. The motors are cooler a

Re: [Emc-users] stepper driver

2018-08-26 Thread Gene Heskett
On Sunday 26 August 2018 08:06:34 Erik Christiansen wrote: > 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 > > > > > > whi

Re: [Emc-users] stepper driver --> survive to cnc another day

2018-08-26 Thread Nicklas Karlsson
> 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. W

Re: [Emc-users] stepper driver

2018-08-26 Thread Erik Christiansen
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

Re: [Emc-users] stepper driver

2018-08-26 Thread Gene Heskett
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

Re: [Emc-users] stepper driver

2018-08-26 Thread Erik Christiansen
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 com

Re: [Emc-users] stepper driver

2018-08-25 Thread Gene Heskett
On Saturday 25 August 2018 14:18:27 Chris Albertson wrote: > The advantage of this driver seems to be only that it is connected via > SPI. Driving very small moters over SPI seems to me to be a very > specialize use. > I think so, although with Bertho Stultan's rpspi.ko driver, its proved to be w

Re: [Emc-users] stepper driver

2018-08-25 Thread Chris Albertson
The advantage of this driver seems to be only that it is connected via SPI. Driving very small moters over SPI seems to me to be a very specialize use. On Sat, Aug 25, 2018 at 10:09 AM Gene Heskett wrote: > On Saturday 25 August 2018 07:54:00 gru...@manlymail.net wrote: > > > has anyone tried th

Re: [Emc-users] stepper driver

2018-08-25 Thread Gene Heskett
On Saturday 25 August 2018 07:54:00 gru...@manlymail.net wrote: > has anyone tried this > > https://www.sparkfun.com/products/13752 > > 1. Its too costly, and too small for the motors I've generally used, as the much more capable 2m542 is easier to control, can't be killed by a wiring error, alb

Re: [Emc-users] stepper driver

2018-08-25 Thread Jon Elson
On 08/25/2018 06:54 AM, gru...@manlymail.net wrote: has anyone tried this https://www.sparkfun.com/products/13752 Seems awfully expensive, as many of the Pololu-style drivers can be had for under $2. Jon -- Check o

[Emc-users] stepper driver

2018-08-25 Thread grumpy
has anyone tried this https://www.sparkfun.com/products/13752 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot __