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Ormerod commissioning problems (6 replies)

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I've been trying to commission my Ormerod (#072) for most of the day. The current problems are:

1. I can't get Pronterface to consider the printer is online without resorting to a cumbersome procedure. It looks like the Duet firmware (updated to latest as of today) is not going into Marlin emulation mode. When I try to connect to it in Pronterface, it sends out the M105 commands and the Duet responds with the temperatures, but without the "ok" at the start. So Pronterface doesn't treat the printer as online. If I use the Arduino serial monitor and issue the M503 command, it prints the commands from config,g, including the M555 P2 command to set Marlin emulation mode, so it's definitely there. If I send "M555 P2" manually, then the Duet starts putting "ok" at the start of its responses. After that, I can close the serial monitor and then connect with Pronterface. So I guess the Duet is either ignoring that line in config.g or resetting its configuration after processing it.

2. I can't connect to the Duet over Ethernet - I can't even ping it. Maybe it's ignoring the whole config.g file so the IP address is wrong. This is while the board is powered form USB, because I know about the problem with lack of 5V supply on early Duet boards if the USB port is not connected.

3. Y axis homing works OK but X and Z axis homing doesn't. When I connected the proximity sensor yesterday, I was sure I had the connector the right way round as in the photos. But I checked this evening and it was the wrong way round. Was it me, or have the photos changed today? (they change so often). I've corrected the connections, but homing still doesn't work. Is my proximity sensor board blown? I tried to find a schematic and PCB layout for it so that I can check it with a multimeter or scope, but I can't find them, just a bunch of mechanical design files for Ormerod.

Any help gratefully received. I've emailed RepRapPro support, but they seem to be taking a long time to respond recently (I guess they are overwhelmed).

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