G3D driver

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A4988 G3D Stepper Drivers

Release status: working

G3d 1.jpg
New generation stepper motor driver
CC (Noncommercial)
CAD Models
External Link


This is the new innovative stepper motor driver for your 3D printer or any task involved stepper motors! It is a new generation as replacement for Pololu/StepStick it is fully compatible with Pololu and StepStick.

Professional design ensure stable operation of this driver - it contain double copper PCB for better heat dissipation.

Using standard A4988 drivers you face the problem of vibration / shaking stepper motors and frame when stepper motors are moving (most noticeable on Z stage). These drivers solves this problem by using an additional 30k trimpot to correctly select the off-time settings. Is it complicated to use? No, you only need to turn second trimpot (OSC) fully counterclokwise and that's all - you can enjoy smoother and quieter stepper motors operation and no more lost motor steps because of non-optimal off-time settings.

Where to get it?

4pcs or 5pcs G3D Drivers fully soldered and assembled and ready to use:

4pcs GADGETS3D.com
5pcs GADGETS3D.com
Fabster3D Ebay

You can also build it by yourself design files you can find at bottom of page.

VREF Calculation Formula

REF = I_TripMax * 8 * 0.1 I_TripMax - Trip current of your motor (A)

Example: 0.4A * 8 * 0.1 = 0.32V


G3d 11.jpg

G3d 22.jpg

G3d 33.jpg

Design Files

Files will be available within 24-48h.