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I have a Wanhao Duplicator i3 plus and have been using it for 6 weeks with little problems other than replacing y axis bearings. I do have it setup to print inside an enclosure to help keep it warm and limit abs warpage.

In the last 3 attempts to print I am finding that it is stopping mid print, the nozzle returning to home-y and going to menu (System, Tool, Print). The first print that it happened to was a large surface area print and it did not make it through first layer. The second and third smaller prints it made it through the first layer and stopped mid way through the second. The stop point does not coincide with the % completion.

I have tried the obvious and tried a different SD Card).

Any ideas how to troubleshoot this one?

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can you link it by the usb cable supplied to the pc or tablet that you run the slicer prog on, then open the console and look at the G code if you see a g50 or g45 instruction when you press run to then it could be the slicer. I use matter hackers slicer and run thro usb, a lot easier and more control. ginves you the option of 3 different slicer engines but more importantly gives you a running console so that you can see the code as its running. Just find on the internet a site which has the basic g code and M sets. its not hard to learn the language and its very basic. It could be a hardware prob, but this is a lot quicker to implement and will save hours of guesswork in the future. :slight_smile:

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Does it do the same thing when printing over USB, that would at least completely rule out an SD Card issue? I have been using Octopi for a while now and luckily had no issues so far.

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No clue all I know if mine had a melt down motherboard caught fire the thing is a hazard, shipped it back to wanhao usa yesterday lets see what they say

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On the first large print, when you found it in a finished state did the Z height run up as high as the print or did Z stay at first layer height? I have an i3V2 but have heard the i3 Plus has cable issues to everything on the carriage. Are your cables the ribbon type or something with a positive locking tab? If you have the ribbon type to X motor and the extruder motor a dab of adhesive is a good idea to keep them from pulling lose.

I typically watch the first layer go down and once convinced everything is good to second layer then I’ll walk away. Just sayin’…