Economy controller vs High-Performance GRBL CNC controller

Arduino + Gshield Economy controller High-Performance controller Duet 2 wifi
Not pictured Left in picture Right in picture Not pictured
Good choice for adding laser and SD card Good aesthetics (premium black anodized aluminium housing) For the software geek
Cost € (not offered anymore) € (€94,99 VAT included)
Options:
– LCD screen and SD reader: €50
– external emergency button: €5
€€€ (€274,99 VAT included) €€ (149,99 VAT included)
Voltage

24V

220V->24V external power supply required

24V

220V->24V external power supply provided

24V

220V->24V internal power supply integrated

24V

220V->24V external power supply provided

Amount of stepper motor drivers 3 (Y1 and Y2 motors share one stepper motor driver) 4 (Y1 and Y2 motors have their own stepper motor driver) 4 (Y1 and Y2 motors have their own stepper motor driver) 5 (Y1 and Y2 motors have their own stepper motor driver)
Stepper motor driver Texas Instruments DRV8818 Texas Instruments DRV8825  Toshiba TB6600 Super quiet TMC2660
Current per stepper motor driver (NEMA 23 for CNC’s usually can take max 2.8A for max torque) Max. 2.3A Max 2.5A Max 4A but electronically limited to 2.8A Max 2.8A but software-wise set to 2.4A
Limit switches and Z probe No pin for Z probe, but free pin on arduino. Pins for adding limit switches, but requires soldering Connectors for Z probe and limit switches Connectors for Z probe and limit switches Connectors for Z probe and limit switches
Attaching motors Tiny screw terminals – need extra wiring for Y axis as Y1 and Y2 motors wires share one terminal Each motor has it’s own connector on the controller Each motor has it’s own connector on the controller Each motor has it’s own connector on the controller
Attaching laser No pin for laser, but free pin on arduino.

Physical button to set to laser mode

Connector for controlling laser

Connector for controlling spindle (requires relais) or laser Yes, unused connectors are available, and can be configured in the software
GRBL Yes 1.1 Yes 1.1 Yes 1.1
Compatible with UGS, Easel, etc Yes Yes Yes No
Cooling of the stepper drivers  You can add heatsinks  Heatsinks are recommended Heatsink is optional as stepper drivers do not operate on full current (electronic reduction to 2.8A for motor protection) You can add heatsinks
Cooling of the housing  You can add your own fan 4cm 12V fan 4cm 24V fan Connector for connecting 24V fan
Housing You can print a 3D housing A 3D printed housing is provided Premium black anodized aluminium housing You can print a 3D housing
SD card? Requires using pins on the arduino – no easy plug and play product available Connector foreasy plug in of LCD display and SD card for offline control (a cost applies for the LCD display and integrated SD card reader option) Pins on the controller’s PCB are available – requires soldering 4 contacts to add LCD display and SD card for offline control (a cost applies for the LCD display and integrated SD card reader option) Yes, micro SD card reader
Wifi? No No No Yes
LCD display? Requires using pins on the arduino – no easy plug and play product available Connector for easy plug in of LCD display and SD card for offline control (a cost applies for the LCD display and integrated SD card reader option)  Pins on the controller’s PCB are available – requires soldering 4 contacts to add LCD display and SD card for offline control (a cost applies for the LCD display and integrated SD card reader option) Optional

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