Stepstick Stepper Driver A4988 R2
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The driver unit that can attach on the Ramps 1.4 main board, to drive steppers, this system called raprep mainly used on 3D printer system or other similar system like CNC machine. Very suitable for Mendel, huxley such raprep system.
A4988 IC can drive 2A per phrase of the stepper, the new version V2 of this module has 2oz copper thickness (70um instead of normal 35um), the higher copper thickness can provide better heat dispation, this unit with heat sink can keep working on 2A current for long time. You can find some heat sink on our store too.
The three axis X Y Z of the machine will need three pieces of this unit, and the extra 3D printer head will need this unit too, one head will need one unit.
This unit can also work standalone to driver stepper.
This product is a carrier board or breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; we therefore recommend careful reading of the A4988 datasheet (380k pdf) before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil (see the Power Dissipation Considerations section below for more information). Here are some of the driver’s key features:
- Simple step and direction control interface
- Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
- Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
- Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
- Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
- Short-to-ground and shorted-load protection
Package includes the heat sink, pins are pre-soldered on board now.
Buck order price is $1.5 per piece for more than 100pcs order, auto update price in cart.
marcolim87 (verified owner) –
Very competitive price.
I will testing with ramps as soon as possible.
email@example.com (verified owner) –
Perfect, Im using about 20 of them and they are perfect.
Careful not to power them up with the motor voltage source without a motor connected or you can damage them!
Also, start with current low and move up until motor is happy, these are small but powerful, I have driven nema 23’s with them so limit the current!
And consider airflow if putting it in a box, add a fan
muzy (verified owner) –
Those Stepstick Stepper driver work like charm and are the most cost-effective solution to control the usual 3d printers. For best best results I do recommend to attach a heatsink as the chip can get quite warm.
trhardin (verified owner) –
For the price, great! The pot is kinda hard to set and heat sink is further complicates this. The DR8825 board layout seems to give better pot access. Haven’t tried it with large supply, but with limited supply works great on mid sized motor.
Delia (verified owner) –
good price, works great.