Im getting really confused about stepper motor selection.
I am building a new large printer using the ramps 1.4 and DRV8825 driver from a 12v supply.
I already have a mendelmax using this setup except with standard A4988 drivers and nema17s
It looks like both drivers use the main Ramps 1.4 voltage (12v) as the motor drive.
OK so far, except the nema17s supplied with the mendelmax kit are rated at 3.7v.
I guess that is what the pot power adjustment is all about, finding the right drive power?
Anyway I am trying to select a nema23 size for my new project and have the following choice.
Specifications:
Model No. Voltage Current (phase) Inductance (Phase) Holding
Torque
V A mH Nm
SY57STH51-1008B 9.24 0.7 32.8 1
SY57STH51-3008B 3.1 2.1 3.6 1
SY57STH56-2008B 5.04 1.4 10 1.24
SY57STH56-3008B 3.15 2.1 4.4 1.24
SY57STH76-3008B 4 2.1 6.4 1.85
I thought I was quite good with electronics running 3.7v motors from 12v seems a bit wacky.
(sorry cant get the table formatted properly)
Im thinking the lower one is the best choice.
Any advice welcome.
I am building a new large printer using the ramps 1.4 and DRV8825 driver from a 12v supply.
I already have a mendelmax using this setup except with standard A4988 drivers and nema17s
It looks like both drivers use the main Ramps 1.4 voltage (12v) as the motor drive.
OK so far, except the nema17s supplied with the mendelmax kit are rated at 3.7v.
I guess that is what the pot power adjustment is all about, finding the right drive power?
Anyway I am trying to select a nema23 size for my new project and have the following choice.
Specifications:
Model No. Voltage Current (phase) Inductance (Phase) Holding
Torque
V A mH Nm
SY57STH51-1008B 9.24 0.7 32.8 1
SY57STH51-3008B 3.1 2.1 3.6 1
SY57STH56-2008B 5.04 1.4 10 1.24
SY57STH56-3008B 3.15 2.1 4.4 1.24
SY57STH76-3008B 4 2.1 6.4 1.85
I thought I was quite good with electronics running 3.7v motors from 12v seems a bit wacky.
(sorry cant get the table formatted properly)
Im thinking the lower one is the best choice.
Any advice welcome.