Quote Originally Posted by jfkansas View Post
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Note also that flashforge extruders and thermocouple will not fit the Qidi. The Qidi uses a slightly bigger diameter thermal barrier, and the thermocouple has 5mm threads instead of the 4mm threads on the Flashforge.
I have a Qidi bought around Nov. 1, 2015 and it has 4mm thermocouples. They went to the larger thermocouples last december in there latest update. They seem to roll in improvements to the machine several times a year.
I don't really think the thermocouples being a different size makes much difference unless you have multiple machines with the smaller size.
Also check Qidi ebay store there parts can be bought at ridiculously low prices that Flashforge will never match.