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Comments by Grant
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New NEMA 17 stepper motor with optional integrated lead screw
- 21 March 2018The MP6500 and DRV8825 stepper motor driver carriers are higher-power alternatives to the A4988 carrier you originally asked, and they generally can work well with that stepper motor, though you still won't be able to get the full 1.7 A rated current out of the stepper motor with them. If getting the full rated current is important for your application, you might consider the AMIS-30543 stepper motor driver.
By the way, you might also be interested in our Tic stepper motor controllers, which feature additional integrated processing and offer higher-level control interfaces like USB. The T500 and T825 are based on the same MP6500 and DRV8825 stepper motor drivers that are on the carriers I linked to above. With the Tics, it would be easy to temporarily raise the current limit for when you really need the extra torque and then lower it again before the driver overheats.
Grant
New NEMA 17 stepper motor with optional integrated lead screw
- 20 March 2018Hello.
The A4988 has a lower current limit than the rated current of the stepper motor, so it will limit the performance you can get from the stepper motor. To get more performance, you should consider a stepper motor driver with a greater current limit.
You can use a power supply with a voltage higher than the rated motor voltage if you use a driver with current limiting. You can read more about this in the first FAQ under the FAQs tab on the product page for the stepper motor.
Grant
New product: A-Star 32U4 Prime LV
- 11 August 2017Hello, Caleb.
We have put up step files for those boards under the "Resources" tab on the A-Star Prime's product page.
New NEMA 17 stepper motor with optional integrated lead screw
- 12 June 2017Hello, Jan.
The datasheet for the stepper motor, which can be found under the "Resources" tab on the product page, gives a maximum axial force of 10N. Our expectation is that the axial load rating already takes any such bearings into account, making it equivalent to a linear force rating.
-Grant
New product: Pololu Ball Caster with 1″ Plastic Ball and Ball Bearings
- 20 March 2017Hello, Vincent.
Can you characterize how much rolling resistance you are seeing?
Grant
New product: Aluminum mounting bracket for NEMA 17 stepper motors
- 22 December 2016Hello.
Thank you for the kind words! I am glad you are happy with the design of the brackets.
Grant
New Product: 5V, 5A Step-Down Voltage Regulator D24V50F5
- 3 June 2016Hello.
The mounting holes on the board are 0.85" from edges they are closest to. We do not have a dimension drawing for this board yet, but the DXF file has all the hole locations on the board.
-Grant
Two new motor driver shields for Arduino
- 5 May 2016Hello.
I am sorry you are having a problem with your motor driver shield. This is not an appropriate place for troubleshooting, but if you post about the issue on our forum with more details, like which driver you have, we would be glad to help.
Grant
37D mm metal gearmotors with encoders and end caps
- 25 April 2016Hello, Jason.
The shaft is supported by a bushing (sleeve bearing). We do not have any specific radial load ratings for these, and in general, more radial load will lead to shorter life. We do not recommend more than a few pounds of radial load on the output shaft.
- Grant
Video: Introducing the DRV8835 Dual Motor Driver Kit for Raspberry Pi B+
- 10 December 2015Hello, Dmitry.
Please check the product page for detailed specifications.
- Grant