Hi, I am currently building a Mendel. I ran into a small problem here. I am looking for the stepper motors that should be used. Is there any certain specs. As far as I know that what really matters is the frame size, either a NEMA 17 or NEMA 14 motor. Also the torque should be 1400 g-cm or more. What about other factors such as the stepping angle size, weight of the motor, the voltage. I have seen a lot of people posting various motors with various specs. I am looking for a decent motor, which would give me the best printing quality. So what are the important factors I am looking to?? Another thing !! I have known that the lower the step angle, the better. However, I don't think it is irreparable if the step angle is 1.8deg/step or even 3.6deg/step.I believe the stepper motor drivers are capable of micro-stepping. Meaning, it can control the current going to the phases of the stepper, allowing it to accurately do half or even quarter stepping. IS THAT POSSIBLE To BE DONE in A mendel ?? Thanks, Khaled https://reprap.org/forum/read.php?1,35741,35741#msg-35741 Mon, 14 Sep 2026 20:37:27 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,35741,35828#msg-35828 https://reprap.org/forum/read.php?1,35741,35828#msg-35828
[www.phidgets.com]

Phidgets looks to have a good selection of motors...but i do not know pricing from other places so I cannot say whether they compare favorably.]]> maitri982 General Thu, 11 Feb 2010 12:10:37 -0500 https://reprap.org/forum/read.php?1,35741,35795#msg-35795 https://reprap.org/forum/read.php?1,35741,35795#msg-35795



I had slipping problems from drive shafts and gears so have not managed to get the stepper to maximum torque yet i.e when the stepper says hey too heavy and stalls.

You can see how tiny the steeper is in this picture.]]> BodgeIt General Wed, 10 Feb 2010 22:43:46 -0500 https://reprap.org/forum/read.php?1,35741,35769#msg-35769 https://reprap.org/forum/read.php?1,35741,35769#msg-35769 Triffid_Hunter General Wed, 10 Feb 2010 17:58:53 -0500 https://reprap.org/forum/read.php?1,35741,35752#msg-35752 https://reprap.org/forum/read.php?1,35741,35752#msg-35752 goinreverse General Wed, 10 Feb 2010 15:07:43 -0500 https://reprap.org/forum/read.php?1,35741,35741#msg-35741 https://reprap.org/forum/read.php?1,35741,35741#msg-35741
I am currently building a Mendel. I ran into a small problem here. I am looking for the stepper motors that should be used. Is there any certain specs.

As far as I know that what really matters is the frame size, either a NEMA 17 or NEMA 14 motor. Also the torque should be 1400 g-cm or more. What about other factors such as the stepping angle size, weight of the motor, the voltage. I have seen a lot of people posting various motors with various specs.

I am looking for a decent motor, which would give me the best printing quality. So what are the important factors I am looking to??

Another thing !! I have known that the lower the step angle, the better. However, I don't think it is irreparable if the step angle is 1.8deg/step or even 3.6deg/step.I believe the stepper motor drivers are capable of micro-stepping. Meaning, it can control the current going to the phases of the stepper, allowing it to accurately do half or even quarter stepping. IS THAT POSSIBLE To BE DONE in A mendel ??


Thanks,
Khaled]]> Khaled Zaki General Wed, 10 Feb 2010 14:10:59 -0500