1HCL + LDO 0.9
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I bought some 1HCL and https://www.filastruder.com/products/ldo-stepper-motors-with-encoder-for-closed-loop . I didn't realize these motors are 0.9.
I checked the filastruda listing again; Duet3D has tested these with the E3D Toolchanger on the X/Y axis with a 1HCL control board, and found they worked well.
But recall per the Duet site re 1HCL and 0.9 motors; We advise against using 0.9deg motors because the maximum speed will be reduced. The positioning accuracy in closed-loop mode depends on the resolution of the encoder, not on the degrees/step of the motor.
Is there a verdict on this? The application is for Z- neg head on a pic and place machine. The original application had open loop drivers, but lacked auto tool changing. New application will have tool changing and torque is critical.
thanks for any insights
Wayne -
@wayneosdias I used the 0.9degree motors on my original 1HCL conversion for the toolchanger ad they did work well for my understanding at the time i was testing we subsequently did a lot more testing with a wider range of motors and found that 1.8 degree motors perform better especially with the "standard" 1000CPR encoders used on many motors. The 0.9degree motors i tested have 2500CPR encoders which helps with the positioning accuracy but not with the top speed.
