Can't connect to new RAMPS board

I have a RAMPS 1.4 + Mega 2560 combo purchased from MakerGeeks.com. I have it connected to power and only one motor and end-stop connected at the moment.

I'm trying to connect to Repetier 1.5.6 using the Repetier Firmware. I have a "vanilla" version (meaning I did no customization in the config wizard online) and I have loaded it to my Mega.

When I try to connect to Repetier, I get the message "No start signal detected - forcing start" then I see a bunch of commands being sent (A sample log is included at the end of this post.) As far as i can tell, I'm not getting any intelligible responses back. I tried sending M115 and M119 and got no responses. I verified that the baud rate set in the firmware matches what is in the printer settings dialog.

Can anyone point me to some troubleshooting steps beyond what I found in the Repetier troubleshooting guide?

Any help would be appreciated.

Log follows...

17:01:45.197 : No start signal detected - forcing start
17:01:45.213 : N1 M110 *2
17:01:45.213 : N2 M115 *4
17:01:45.213 : N3 M105 *4
17:01:45.213 : N4 M114 *3
17:01:45.260 : N5 M111 S6 *66
17:01:45.260 : N6 T0 *28
17:01:45.260 : N7 M20 *54
17:01:45.260 : N8 M80 *51
17:01:45.260 : N9 M105 *14
17:01:48.385 : N10 M105 *54
17:01:51.447 : N11 M105 *55
17:01:51.447 : H??J??-?*?N?8O}?v?Nm.oh?/^fNN^?~X?^H&CNNa?-hH&    @~a~?HoBO6Ha&??g:=
17:01:54.510 : N12 M105 *52
17:01:57.572 : N13 M105 *53
17:02:00.636 : N14 M105 *50
17:02:03.698 : N15 M105 *51
17:02:06.761 : N16 M105 *48
17:02:09.821 : N17 M105 *49
17:02:49.876 : Communication timeout - reset send buffer block
17:02:49.876 : N18 M105 *62
17:02:52.723 : N19 M105 *63
17:02:55.787 : N20 M105 *53
17:02:58.877 : N21 M105 *52
17:02:58.877 : ?6?(?'z}M?V
17:03:01.946 : N22 M105 *55
17:03:04.984 : N23 M105 *54
17:03:08.073 : N24 M105 *49
17:03:11.133 : N25 M105 *48
17:03:14.190 : N26 M105 *51


Comments

  • ?6?(?'z}M?V

    is your printers response the host does not understand. Reason is a wrong baud rate. Try 115200 or 250000. It's most probably one of these that will work.
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