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pretengineer

Cura 12.12 with RAMPS 1.4 connection issue

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Hi,

I've recently downloaded Cura 12.12 to use with my RepRap Prusa but I can't get it to connect. When I click connect in the print dialog, it goes from 'Machine State: Detecting baudrate' to 'Machine State: Error: No more baudrates...'

I've tried setting different baudrates in the firmware but no luck. I've been using Slic3r and Pronterface for the past few weeks with little to no issues.

I'm using RAMPS1.4 and Sprinter software.

Any ideas on a solution?

 

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Error Log

Changing monitoring state from 'Offline' to 'Opening serial port'

Connecting to: COM8

Connected to: Serial<id=0x350c670, open=True>(port='COM8', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=0.1, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor

Changing monitoring state from 'Opening serial port' to 'Detecting baudrate'

Trying baudrate: 250000

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 230400

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 115200

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 57600

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 38400

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 19200

Send: M105

Baudrate test retry: 4

Send: M105

Baudrate test retry: 3

Send: M105

Baudrate test retry: 2

Send: M105

Baudrate test retry: 1

Send: M105

Baudrate test retry: 0

Send: M105

Trying baudrate: 9600

Send: M105

Changing monitoring state from 'Detecting baudrate' to 'Closed'

Changing monitoring state from 'Closed' to 'Error: No more baudrates to...'

Connection closed, closing down monitor

I should mention that I had this same problem with a RAMPS 1.3 board and a different Arduino as well.

 

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Odd. I've never tried sprinter myself (as we use Marlin), one of the things that could be it is that it takes a while for sprinter to be start-up. If you use pronterface, how long does it take to connect? (Pronterface uses very long timeouts, while those of Cura are pretty short)

 

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