Yet another extruder not working
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I should have included the link to the 3.3 zip file and told you to upload that and it would likely have "just worked".
https://github.com/Duet3D/RepRapFirmware/releases/download/3.3/Duet2and3Firmware-3.3.zip
Beta releases don't get the full zip file treatment. As a general rule with most software I'd say it's a good idea to avoid beta releases unless you either have a working system and want to test the new changes, or you know there is a fix to a specific problem only available there. Jumping into a beta release during commissioning or troubleshooting is a recipe for chaos.
@jens55 said in Yet another extruder not working:
I do not know if the RRF road map includes some sort of self check to verify that the expansion card and main controller software are matching
Maybe. In the meantime you can do this today by creating a macro with M115, M155 B0, etc for all your boards and run it after a firmware update to see if they are all updated.
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@jens55 said in Yet another extruder not working:
I do not know if the RRF road map includes some sort of self check to verify that the expansion card and main controller software are matching but I hope that is in the works. There are just too many ways that the user can screw this up if it is something that is left for the user to do/verify.
...even if there was a selftest, DWC wouldn't show errors unless the user runs M98 P"config.g" after connecting to DWC.
I'm not familiar with Duet 3 family, but there should be another sign of warning (beeper or flashing LED) -
@o_lampe, with a single tool board hooked up things are quite manageable if you know what to look for (big 'if') but I can easily see a big pile of poo happening once you got expansion cards, tool boards and who knows what else all hooked up in a big machine.
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@jens55
one thing to avoid is bad crimping. You (and others) have experienced it. I always solder after crimping to be on the safe side. -
@o_lampe, soldering is bad ju ju after a crimp connection !!!!
The solder wicks up into the wire strands for a bit and wherever it stops you have an extremely high stress point that will fail if there is any wire bending going on.
While I had my share of bad crimp joints in the beginning, once you get the hang of it they are pretty darn reliable.
Now the tiny PH connectors for the 1LC board is something that I have not mastered yet and I am seeing the results I suspect I am using too large a crimp die for the wire crimp. The other issue, there is like a fraction of a mm between the wire crimp and the insulation crimp and the insulation crimp tends to 'fall off' the insulation which could be because of the wrong sized die as well.
Sometimes the wings of the insulation crimp don't form properly and again the joint is compromised.
I am ordering another hundred crimps from DigiKey to give me room for more failures or more practice. Maybe someone who has mastered these tiny things will respond to my thread on crimping .... -
@jens55
Lucky You, having a crimp tool at all. Poor Me uses needle nose pliers.
I'm aware of the stress points when solder raises too far into the strands, but I always bundle the wires and keep them fixed to avoid issues. -
@o_lampe said in Yet another extruder not working:
@jens55
Lucky You, having a crimp tool at all. Poor Me uses needle nose pliers.It's something like maybe $40 and absolutely essential !!!! Do yourself a favour and get the Engineer PA-09 !!!
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@jens55
I could tell you alot about the patent wars going on between various connector manufacturers. All I say is, you always look for the next-best crimp tool, which is an endless endeavor. In my former hardware-lab we had a peg-board wall full of crimptools dedicated to certain connectors. -
@o_lampe , don't I know it .... I don't have a pegboard full but I do have a drawer full of them but the PA-09 is, as I said before, essential for my Duet work. I also have the next size up from Engineer but I rarely use it (still nice to have).
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I splurged and got myself this set.
https://www.amazon.ca/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B0045CUMLQ/
Worth every penny so far.