Welcome! Log In Create A New Profile

Advanced

alternative to a4988 and drv8825

Posted by fabrice974 
alternative to a4988 and drv8825
April 23, 2015 11:34AM
hi everyone
i wonder what is the cheapest alternative to a4988 and drv4825 which didn't required manual adjusting
to use with nema 17 1,2a stepper

thanks
fabrice
Re: alternative to a4988 and drv8825
April 23, 2015 11:47AM
The A4982/A4988 family and the drv8825 can be driven from a DAC or digipot to avoid the need for manual adjustment. Both the Duet and the Smoothieboard electronics use A4982 drivers driven in this way.



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
Re: alternative to a4988 and drv8825
April 23, 2015 12:17PM
any solution which work with a ramps board ? (just looking for the driver)
Re: alternative to a4988 and drv8825
April 23, 2015 12:55PM
Quote
fabrice974
any solution which work with a ramps board ? (just looking for the driver)

Not that I am aware of. Get yourself a modern board, such as Duet or Smoothie, and you will gain more than just software control of motor current.



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
Re: alternative to a4988 and drv8825
April 23, 2015 01:21PM
does both support core xy mode ?
Re: alternative to a4988 and drv8825
April 23, 2015 01:23PM
find the answer for smoothie!
[smoothieware.org]
Re: alternative to a4988 and drv8825
April 23, 2015 03:45PM
Yes, both have firmware that supports CoreXY. I support the CoreXY mode in Duet firmware, see [github.com].



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
Sorry, only registered users may post in this forum.

Click here to login