Hi Sandy! Thanks a lot for this awesome tool!
I am having a lot of problems losing connection between controller and arduino. Im sure is an issue with linux rxtx. While, I want to give a chance to the sd card reader. I am trying to debug but arduino doesn't write anything about the card...

POLARGRAPH ON!
Hardware: 2
MC_MEGA
Loaded width:2127
Loaded height:1300
Loaded mmPerRev:32.00
Loaded steps per rev:200
Loaded step multiplier:16
Loaded down pos:20
Loaded up pos:50
Recalc mmPerStep (0.01), stepsPerMM (100.00)
Recalc pageWidth in steps (212700)
Recalc pageHeight in steps (130000)
READY_100

Obviously i can't draw!

running ramps + mega + polargraph_server_a1

Any help?
Thanks!!!!

You're bold to try this - I haven't tried it since February 2012!

When you do the queue->exec part, you enter COMM.TXT as the file to draw from? That gets turned into a command that looks like C34,COMM.TXT,END, and that gets put into the command queue.

When that C34 command is consumed by the machine, what response does the machine give? It'll be either a complaint "Can't find the file ...", or a message like "drawing commands from ...".

Filenames are case-sensitive, comm.txt will not work.

Your COMM.TXT file has a "set home" as one of it's first commands?

I'm going to be honest, it's entirely possible this just doesn't work ... but I appreciate you trying to get it moving!

sn

More info:
https://www.dropbox.com/sh/1lv8c165wgz84vr/AADa7XMMPVqTXJFOaP08Wqf1a?dl=0

this is the beginning of the file COMM.TXT:
C08,2,2,END
C01,9855,4860,END
C13,END
C05,9900,4860,90,49,END
C08,2,4,END
C05,9900,4950,90,35,END
C05,9810,4950,90,52,END
C08,2,2,END
C05,9720,5040,90,56,END
C05,9810,5040,90,35,END
C05,9900,5040,90,37,END
C05,9990,5040,90,31,END
C08,2,4,END

The print seems to hang in the second line C01,9855,4860,END

Debug SD give this:

Last command:C34,comm.txt,END:616184625
incoming: Filename to read from: comm.txt
incoming: Array to read from: comm.txt
incoming: Opened file:comm.txt
incoming: Reading...
incoming: .C-Command building:C
incoming: Reading...
incoming: .0-Command building:C0
incoming: Reading...
incoming: .8-Command building:C08
incoming: Reading...
incoming: .,-Command building:C08,
incoming: Reading...
incoming: .2-Command building:C08,2
incoming: Reading...
incoming: .,-Command building:C08,2,
incoming: Reading...
incoming: .2-Command building:C08,2,2
incoming: Reading...
incoming: .,-Command building:C08,2,2,
incoming: Reading...
incoming: .E-Command building:C08,2,2,E
incoming: Reading...
incoming: .N-Command building:C08,2,2,EN
incoming: Reading...
incoming: .D-Command building:C08,2,2,END
incoming: Reading...
incoming: .
incoming: -New line
incoming: Stored command parsed.
incoming: Executing command:C08,2,2,END
incoming: Command building:
incoming: Reading...
incoming: .C-Command building:C
incoming: Reading...
incoming: .0-Command building:C0
incoming: Reading...
incoming: .1-Command building:C01
incoming: Reading...
incoming: .,-Command building:C01,
incoming: Reading...
incoming: .9-Command building:C01,9
incoming: Reading...
incoming: .8-Command building:C01,98
incoming: Reading...
incoming: .4-Command building:C01,984
incoming: Reading...
incoming: .6-Command building:C01,9846
incoming: Reading...
incoming: .,-Command building:C01,9846,
incoming: Reading...
incoming: .4-Command building:C01,9846,4
incoming: Reading...
incoming: .8-Command building:C01,9846,48
incoming: Reading...
incoming: .6-Command building:C01,9846,486
incoming: Reading...
incoming: .0-Command building:C01,9846,4860
incoming: Reading...
incoming: .,-Command building:C01,9846,4860,
incoming: Reading...
incoming: .E-Command building:C01,9846,4860,E
incoming: Reading...
incoming: .N-Command building:C01,9846,4860,EN
incoming: Reading...
incoming: .D-Command building:C01,9846,4860,END
incoming: Reading...
incoming: .
incoming: -New line
incoming: Stored command parsed.
incoming: Executing command:C01,9846,4860,END
incoming: SYNC,9846,4860,END

And hang! stop move!
-----

I printed directly from controller exactly the same queue, without any problem.

Help!!!