flashforgefinder-protocol

A reverse engineering of Flash Forge Finder WIFI protocol

Capture is done with Wireshark over Ethernet, if this is successful I'll maybe take a look into the USB protocol also. The pca-captures are located in the wireshark folder, label the scenario made. Also all pca-cap has a tcp-folow in markdown.

Findings so far:

This was much easier than expected. The printer talks G-code directly over tcp socket. As soon as the M-code M601 is sent you can talk both G and M code directly to the printer.

Now I only need to figure out what M-codes are supported.

If I keep the connection open and connect with the FlashPrint software at the same time, the ff-toolbox receives data from the printer. (side note: this is a bit interesting, you are unable to be connected to the printer with 2 instances of flashprint, but I'm able to be with a simple tcp socket)

Example:

Client:
~M27\n

Printer:

SD printing byte 5525653/5525652
ok

Client:
~M119

Printer:

Endstop: X-max: 1 Y-max: 0 Z-max: 1
Status: S:1 L:0 J:0 F:1
MachineStatus: READY
MoveMode: READY
ok

Command List

Code	Response	Verified	Comment
~M601 S1	CMD M601 Received. Control Success. ok	true	Login Command
~M602	CMD M602 Received. Control Release. ok	true	Logout Command
~M146 r255 g255 b255 F0		true	Sets the color of the leds