I´m running my delta with 1.8° steppers and DRV8825 in fast decay mode. The noise only appears when a stepper stands still, which is almost never the case.
Otherwise they run smooth and silent.
This week I´ll get 0.9° steppers and will test them with fast decay hacked A4988. ( 0.9° and 1/32 microsteps would be too much for 8bit controllers )
The article about 4 antiparallel diodes made me curious to try it out. Maybe If I find a silicium based rectifier, the solder job would be pretty easy. ( and cooling, too )
-Olaf
Otherwise they run smooth and silent.
This week I´ll get 0.9° steppers and will test them with fast decay hacked A4988. ( 0.9° and 1/32 microsteps would be too much for 8bit controllers )
The article about 4 antiparallel diodes made me curious to try it out. Maybe If I find a silicium based rectifier, the solder job would be pretty easy. ( and cooling, too )
-Olaf