Topics created by Dave Parry

@droftarts Thanks, That sorted it. Although it does seem to exceed 500 normally, I have set it to 490 and it works fine

@Dave-Parry when the IR sensor reading jumps to 900 this means that the sensor is unable to operate because there is too much light entering the phototransistor. This is usually caused by direct bright sunlight reflecting off the bed. Was the weather especially sunny when the problem occurred?

@dave-parry said in Sensor error:

What commands do I need to reduce the sensitivity?

https://duet3d.dozuki.com/Wiki/Duet3dFilamentMonitor_RotatingMagnetVersion#Section_Calibration

@dave-parry said in Extruder 0 has no filament sensor:

Also console says no calibration data

It will get calibration data as it starts to print and can check the extrusion amount vs. the amount the sensor is saying came out. It's automatic.

Of you try m591 d0 during a print, you'll see more data.

@jay_s_uk Changed the sensor.
It was the same initially, but its behaving it self now.
When the print finishes will change the wiring connector. It's a 12 way molex. I have spares, so I will cut the wires and re-crimp them. see if that makes any difference. But moving the wires about didnt show any problems, but will change anyhow.

@siam said in Warning: M500: No M501 command was executed in config.g:

M911 S21.0 R23.0 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000"

Thanks Slam that seems to have fixed it.
Just have to recalibrate it now.
Have to say this hasn't been as easy a transition from a legacy duet to a duet 2 has I had hoped.
Thanks to all for their help.

I understand, and if I turn all the fans off in the tick box I get no fans message, Think I'm getting tired, Will carry on with calibration tomorrow. Thank you for your help. would'nt have got there without it.

I'm not very familiar with the old boards, but I would say that since you're starting with a new board that likely has RRF3 on it, you're going to need to update the config anyway.

I suggest using the config tool to generate a new file set for RRF3. You can use the values from your existing config as a road map.

https://configtool.reprapfirmware.org/Start

@dave-parry I think it's dead. I have taken the 3.3v reg and the 2 capacitors off the board, and there's still a short between Pins 1 & 2 and both sides of C4 all shorted to ground. Cant see anything that could be the cause. Maybe a track has shorted somewhere but no idea where. Dont understand why both sides of C4 are shorted to ground

Thanks David, All sorted now. I think I may have used the 2.05 combined file and also the backup config file I used had an old router address on. Anyway back up and running again.

I use a macro to set the G31 Z offset. That way if it ever changes, it doesn't affect the gcode files.

I use ton of MW psu's and I never opted to use the ones with fan on the "front/back" as they have to be noisy as $#^^@$^@$ .. so that one is expected to be loud, too much power in a very small package 😞 need to cool it down..

@Stephen6309 I have not tried those mufflers as I said so have no clue if they work, ppl designing them claim they do. I used the cover replacement technique - you get the top cover off and you print replacement where you put 12cm fan 🙂 .. makes the case 2cm thicker (for the thickness of the fan) but quiet 🙂 ... I also tend to select fanless PSU's and do the same thing to them, with a quiet slown down 12cm fan they last forever..

@Phaedrux
That worked perfectly, thank you so much!
I guess I didn't understand this thread as well as I thought, but now it makes more sense.

@Dave-Parry said in extruder fault problem and upgrade to 24v.:

Next problem is a power connector. 25 amps is a lot for a connector to handle.
My present one is a 8 way one

I'm not sure what you're referring to? Photo?

I think it should, but AFAIK that combination has never been tested.

@Dave-Parry said in 0.8.5 firmware upgrade:

Finally got it sorted. Used RepRapFirmware.bin which seems to have loaded correctly.

That's the correct firmware file for 0.6 and 0.8.5 Duets, as it always has been.

@Dave-Parry said in Heated bed Specs.:

I have a mini Kossel with a (old) duet 0.8.5 which I'm happy with.
I'm now getting intermittent heater bed errors, where I have to switch off then back on to clear. I'm pretty sure the bed heater is playing up and it has got some brown scorch marks on. Can you tell me if I can use NTC 100K 3950 (0.72 ohm) and a 12v 200 watt heater. I think the fuse rating for the bed heater is 15A so I think the heater should be ok but not sure about the sensor as the one I have is i think 4700 ohm.

A 12V 200W heater should in theory draw (200/12) = 16.7A so a little above the rating of a 15A fuse. However, the Duet 0.8.5 doesn't have a fuse.

The other consideration is the current rating of the traces on the Duet. 16.7A is OK for the mosfet but higher than the traces of a Duet 0.8.5 can probably handle. AFAIR the weakest trace is the one between VIN+ and bed heater +. You can add a wire link on the back of the board to bypass that, or connect the bed heater + wire directly to V+ on your PSU instead of to bed heater + on the Duet.

Caution, at high currents there is a risk that the VIN and bed heater terminal blocks on the Duet will overheat if the screws do not remain tight.