sthysel / nejemojo

NeJe engraver driver

nejemojo (Version 0.1.0)

NeJe NEJE DK-8 Pro-5 500mW Laser Engraver tool. Loads and burns images on your NeJe mini-burner.

Usage

$ nejemojo --help

Usage: nejemojo [OPTIONS] COMMAND [ARGS]...

Options:
  -p, --port TEXT  The serial port  [default: /dev/ttyUSB0]
  --help           Show this message and exit.

Commands:
  box       Draws preview box
  burn      Burn the image
  burntime  Set the pulse burn time, the longer the darker
  erase     Erase image from eeprom
  home      Move to home position
  load      Load the image
  pause     Pause Neje burning
  read      Read from port
  reset     Reset Neje
  view      View the image

TTY settings

• baud 57600
• 8 data bits
• 1 stop bit
• parity none

Engraver protocol

msg	description
0xf9	stop/reset
0xf1	start (Once issued incoming data will specify the position, data uses a modulus format.)
0xf2	pause
0xf4	engraving preview (visualizes bounding box)
0xf5	go up
0xf6	go down
0xf7	go left
0xf8	go right
0xf3	go to left corner
<time in hex default 0x3c	(60ms)> burn time
0xfa	set motor parameter <hex speed default = 0x23 (35ms)>
0xfb	go to center
0xfc	fast backward <parameter 0x55> fast forward <parameter 0xaa> recarve <parameter 0x77>
0xfe x8	erase + send picture (BMP specification Black & White 512x512px)

Install

Seems tkinter is not the dejour GUI lib it used to be, thats propably a good thing.

$ sudo pacman -S tk

Need to be able to use ttyUSBn as normal user.

$ sudo gpasswd -a $USER uucp