Mine also arrived and fits beautifully - a very nice upgrade - thanks @Treth for the pointerby MrCrispi - Ormerod
Excellent - thanks; much appreciatedby MrCrispi - Ormerod
RS stock number is 746-8208 website is rswww.com - thanksby MrCrispi - Ormerod
I used an RS 10k one - will that be OK?by MrCrispi - Ormerod
Good catch - poor deductive logic on my part, but have just fitted a new thermistor and voila - all goodby MrCrispi - Ormerod
Nailed it - faulty thermistor! Many thanks to all who have helped me...particularly to @Radian for the picture showing where to apply a10k resistor to override the thermistor - above and beyond and really appreciated. As soon as I over-rode the thermistor the bed sprang to life (so ribbon cable was fine all along!) and I could feel it warming nicely - will now source new thermistor and I think Iby MrCrispi - Ormerod
And it does - that bit is fine at least (silver linings and all that!)by MrCrispi - Ormerod
I unplugged the duet end of the ribbon cable when taking the readings...just unplugged the two cables on the bed end and remeasured to cross-check- 1.1k ohm unplugged just as beforeby MrCrispi - Ormerod
Thanks for all the help radian stick with me! When powered up I only have 3 LEDs showing on the duet board - two come on whenever the USB port is connected and the third (half way down between the USB port and the bottom of the board) comes on when the ATX is powered up - nothing else lit up at any time...by MrCrispi - Ormerod
As far as I can tell the cable looks spot on...the split is 12 + 2 +12 as per instructions and all crimps look secure...always difficult to be sure on a ribbon cable I suppose, but if the ribbon cable were the problem wouldn't you expect there to be some difference in what was showing with and without the cable in place? The core message I get on sending an M105 code is identical with or withoutby MrCrispi - Ormerod
No sign of life on the bed at all - didn't even realise there were led's will further investigate wiring...by MrCrispi - Ormerod
Measured "vias" as suggested - With ribbon cable in place, negligible resistance (2 ohms) with ribbon removed 1.1k ohms - thoughts?by MrCrispi - Ormerod
Thanks for the superfast response - it is much appreciated...I will now see if I can hunt down what pin to remap to before trying something more drastic...meantime if anyone has more detail on what I need to do that would be greatby MrCrispi - Ormerod
I have seen a lot of posts about problems getting the duet to talk to laptops and thought I would share something I found that solved the problem for me. Although the laptop could see the duet, It couldn't read the SD card and the USB connection was very hit and miss. I assumed I had dodgy board. However I managed to source through a colleague a second duet board (a much older one that came withby MrCrispi - Ormerod
Just finished building and all looking very hopeful on the commissioning front EXCEPT I can't get the bed to warm up at all If I send an M105 code in a monitor window I get: ok T:27.7 B:-39.7 I am presuming the t is for hot end temp and the b is for bed temp? I therefore guessed this mean't my bed thermistor was not connected (dodgy crimp or similar) but rechecked and finally soldered the connby MrCrispi - Ormerod