Re: Da Vinci long print problem
Hi there!
I had the same problem with my Davinci 1.0A that it stops without a reason in the middle of a print! Short print jobs usually went well but on longer print jobs I had these random resets. There was no Error message on the screen - it simply stops the print and returns the extruder to home position.
When I looked in the Internet I found other people had this problem too but I couldn't find any solution. A general recommendation was to add extra power line filters or power conditioners. So I tried all kind of stuff to improve the power supply - I've added ferrite coils, extra capacitors, even external power supplies ... I spend so much time and wasted prints as theses random failures are very hard to find ...
To cut a long story short: It turns out that a loose contact of the heating element connector caused this trouble! This connector is exposed to heat and vibration so once in a while it looses contact making the firmware to assume the heating element failed!
As the warranty of the printer already expired I simply removed the plastic housing of the connector, pushed two stripes of shrinking tubes on the cables and stick the contacts back together. Then I've made a solid connection by soldering the contacts together, shrinking the tubes - no more trouble!!! The advantage of reusing the old contacts is that they act as a strain relief and the cable length stays the same.
Here are some pictures:
Before soldering:
Finished:
I hope that this will help some of you facing the same problem!
Take care!