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Green CNC V3.0 shield with UNO R3 board, four red A4988 drivers and four 17HS4401S stepper motors

YINGHUA

YINGHUA CNC V3.0 Shield Expansion Board A4988 Driver Step Motor Kit

SKU CH-MEBT-856YZ

CNC V3.0 shield with UNO R3, four A4988 drivers and 17HS4401S stepper motors for four-axis motion control

  • Runs GRBL .8 on included UNOR3 for reliable G-code motion control
  • A4988 drivers keep power draw low and heat manageable during long prints
  • Four-axis design with six end-stop inputs suits CNC and 3D printer builds
  • Microstep jumpers let you tune resolution up to 1/32 with compatible drivers
  • Kit bundles shield, UNOR3, four motors, drivers and cables for immediate assembly

Professional CNC Shield Kit

This kit combines a CNC V3.0 shield expansion board, an UNOR3 microcontroller, four A4988 stepper drivers and four 17HS4401S stepper motors. It is aimed at makers building or repairing 3D printers and small CNC machines who need a complete motion-control package in one box.

GRBL 0.8 Compatible Firmware

The board runs GRBL 0.8c on the UNOR3, converting G-code commands into step signals for up to four axes using pins D12 and D13 for the fourth axis. Each axis supports two endstops, giving a total of six endstop inputs for precise limit detection.

12-36 V DC Power Input

The shield operates on 12 to 36 V DC, though only DRV8825 drivers can handle the full 36 V range. Motors connect via 4-pin Molex connectors or can be soldered directly, and jumpers set microstepping up to 1/32 where the driver supports it.

Highlights

  • Runs GRBL .8 on included UNOR3 for reliable G-code motion control
  • A4988 drivers keep power draw low and heat manageable during long prints
  • Four-axis design with six end-stop inputs suits CNC and 3D printer builds
  • Microstep jumpers let you tune resolution up to 1/32 with compatible drivers
  • Kit bundles shield, UNOR3, four motors, drivers and cables for immediate assembly

Specifications

No published specifications for this item yet.

Questions about this item

How does GRBL .8 firmware on the UNOR3 board translate G-code into motion on this CNC V3.0 shield?

The UNOR3 runs GRBL .8 and converts G-code commands into step signals for up to four axes, using pins D12 and D13 for the fourth axis.

What microstepping options do the A4988 drivers provide and what limits the maximum setting?

Jumpers on the shield set microsteps for each A4988 driver; the DRV8825 can reach 1/32 microsteps while the A4988 is limited to lower divisions.

What physical connectors do the included 17HS4401S stepper motors use to attach to the shield?

Each motor connects via a 4-pin Molex connector or can be soldered directly to the board.

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