Can't connect to AxiDraw

[TheAmazingPT]

I made sure, that the AxiDraw is properly connected to my Laptop and has power.

My system:

Ubuntu 16.04.4 LTS (Xenial Xerus)

Node: 10.5.0
NPM: 6.1.0

» cat config.ini
httpPort=4242
httpLocalOnly=true
swapMotors=false
maximumBlockingCallStack=100
showSerial=false
serialPath={auto}
bufferLatencyOffset=30
corsDomain=*
debug=false
botType=watercolorbot
scratchSupport=true
flipZToggleBit=false

[invertAxis]
x=false
y=false

[botOverride]
info="Override bot settings E.G. > [botOverride.eggbot] servo:max = 1234"

» node cncserver.js --botType=axidraw --serialPath=/dev/ttyACM0
Successfully loaded config for AxiDraw! Initializing...
Starting IPC server, waiting for runner client to start...
RUNNER:Connected to CNCServer!
Finding available serial ports...
Available Serial ports: /dev/ttyACM0, /dev/ttyS4
Using passed serial port "/dev/ttyACM0"...
Attempting to open serial port: "/dev/ttyACM0"...
Serial failed to send data. Error #44
CONNECTSERIAL ERROR!
=======Continuing in SIMULATION MODE!!!============
CNC server API listening on localhost:4242
Sending EBB config...
---=== AxiDraw (simulated) is ready to receive commands ===---
Scratch v2 Programming support ENABLED

What does Error #44 mean? /dev/ttyACM0 is definitely the correct serial port. I followed the instructions in your Readme but i can't connect to the AxiDraw :(

Does anyone have an idea why?

[oskay]

Is the AxiDraw working otherwise?

[twotabsofacid]

Hi! I'm having the same issue on a Raspberry Pi running Ubuntu.

My system details:

Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:    16.04
Codename:   xenial

And what I get when I try to run cncserver.js:

$ node cncserver.js --botType=axidraw
Successfully loaded config for AxiDraw! Initializing...
Starting IPC server, waiting for runner client to start...
RUNNER:Connected to CNCServer!
Finding available serial ports...
Available Serial ports: /dev/ttyACM0
Using first detected port: "/dev/ttyACM0"...
Attempting to open serial port: "/dev/ttyACM0"...
Serial failed to send data. Error #44
CONNECTSERIAL ERROR!
=======Continuing in SIMULATION MODE!!!============
CNC server API listening on localhost:4242
Sending EBB config...
---=== AxiDraw (simulated) is ready to receive commands ===---
Scratch v2 Programming support ENABLED

I'm using Node v8.12.0 and Npm 6.4.1. I've confirmed that the AxiDraw works by running cncserver.js on my Mac (Node v8.9.0 and Npm 5.5.1).

Anything on what Error #44 is would be helpful, thank you so much!

[twotabsofacid]

This issue was fixed for me by running with sudo—hope this helps someone else, and apologies for bothering anyone.