Timeline for how powerful a stepper motor do i need
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 10, 2017 at 12:37 | vote | accept | aheigins | ||
| Jul 10, 2017 at 4:15 | comment | added | Jack Creasey | @JonWatte True, using the L293D limits current, but the current (LR charging rate) is altered by changing the aiming voltage. This means you get to the current limit quicker, which increases the pullout torque. | |
| Jul 10, 2017 at 3:05 | comment | added | Jon Watte | @Jack Creasey: The problem is that the L293D limits the current at 1200 mA even for the first millisecond, so there is a practical upper limit on the voltage. You also have to be careful to not exceed the winding insulation voltage! | |
| Jul 10, 2017 at 3:03 | comment | added | Jon Watte | @JonRB: Yes, that's exactly what I said; force has to be measured at a distance from the center of rotation, and is derived from torque and distance. | |
| Jul 8, 2017 at 20:32 | comment | added | user16222 | Rotational motors produce torque not force | |
| Jul 8, 2017 at 19:25 | comment | added | Jack Creasey | One point ...a stepper motor is a form of BLDC. The stepper motor is very very voltage tolerant, the OP could simply raise the drive voltage for a few ms on the lead edge of each step to improve the pull out torque. Overall though it would be much more reliable to put in a gearbox to get the torque needed. | |
| Jul 8, 2017 at 16:49 | history | answered | Jon Watte | CC BY-SA 3.0 |