General information regarding the Fly-CDYv3


This page covers any general information for the Fly-CDYv3 board.
It is currently available through AliExpress

Board Fuses

The board is supplied without the fuses installed.
It is supplied with different fuses than the listing on AliExpress. The fuses should be installed as shown below.

Fly-CDYv3 Fuse
Fly-CDYv3 Fuse

Driver Jumpers

The jumpers should be installed as below. “Common Interpolation” should be used for standalone drivers. “SPI mode Interpolation” is supported for TMC5160 drivers. “UART mode Interpolation” should be used when using smart drivers (i.e. TMC2208, TMC2209, TMC2225 and TMC2226)

Fly-CDYv3 Jumpers
Fly-CDYv3 Driver Jumper Locations

Z Driver Jumpers

If only one Z output is being used, jumpers should be installed on the other Z output as shown below.

Fly-CDYv3 Z Jumpers
Fly-CDYv3 Driver Z Jumper Locations

Driver Diag Pin

The driver diag pin is used for sensorless homing and stall detection.
The Fly-CDYv3 does not have a way of disabling the diag pin as it is designed to be used with Fly-2209 drivers which have a switch on the underside of them for disabling the diag pin.
If you plan on using endstops rather than sensorless homing and do not have the Fly-2209 drivers, you need to bend or remove the diag pin.

Driver Signal Voltage

The output voltage of each driver EN, STEP and DIR can be configured to either 3.3v, 5v or 12v. The default is 5v.

Fly-CDYv3 Signal Voltage
Fly-CDYv3 Driver Signal Voltage

Fan Mosfets

The Fly-CDYv3 has a unique feature in that the fan mosfets are replaceable. Each mosfet (AO3400) controls one of the fan outputs.

Fly-CDYv3 Fans Mosfets
Fly-CDYv3 Fans Mosfets

Fan Voltage

The fan voltage can be set using jumpers to either 5v, 12v and Vin.
Set them as shown below.

Fly-CDYv3 Fan Voltage
Fly-CDYv3 Fan Voltage

Input voltage

The board can handle an input voltage up to 32v.

Initial Installation

The board that you will receive doesn’t have any firmware installed so when plugged into a computer, the board will show as an unidentified device. Follow the WiFi instructions.