Topics created by 3dparadis

Duet is open hardware, so you should be able to manufacture the PCB and source all components to build your own boards, I guess. Whether it's worth all that work is another matter. Perhaps if you need a lot of boards.

If another motor worked then it is almost surely not a driver fault. As David said it could be intermittent crimp connections so check them twice before using a new motor. After all it could be just a bad quality motor.

I work in an aerospace tooling company, and we regularly build thermocouple extensions up to ~25', and many of the thermocouples themselves are already 10-15' long, so your printer shouldn't have an issue with wire length.

Regarding making them, as Edkirk was saying, just make sure you have a good connection between the two wires, but ONLY at the end, where you want to measure the temperature.
My work uses a specialized TIG welder to fuse the wires, but there are many methods for field expedient joints.

Whatever you do, make sure that you have the right type of thermocouple.
The boards are designed to work with Type-K thermocouples, so plugging in a Type-J, for instance, would throw the readings off completely.

One last thought: Also, if you are making, or buying, a complete new thermocouple, make sure to buy stranded wire if it will be moving. The cheaper solid wire does not like flexing, and will break in short order.