Quote Originally Posted by Nargg View Post
That's a false statement made by someone a while back. Sad it still sticks around. There was an incorrect assumption that the extra connection at the top of the extruder assembly applied additional resistance. It does, but extremely small amount and doesn't affect the temp reading at all. My tests with my Dreamer have shown it's temp to be pretty consistent and pretty correct. Not that the Pro's not better, it is in a few ways. But the Dreamer is a great printer. The $100 difference to the Pro does get you a better machine for someone who's into the 3D thing for a long time though. The Dreamer looks better sitting on a desk, if that matters. (personal opinion of course...)

No it is still flawed, they just added the exhaust fans in the back to keep the machine from melting down.

The design flaw is the thermocouple being terminated in the junction box at the top of the print head. This creates a false reading since the thermocouple relies on 2 temps, ambient temp outside of the printer and heater block temp. What happens when the thermocouple is terminated inside the build area is the ambient temp keeps going up because of the heated area inside the printer. The thermocouple system is looking for a temp difference between ambient and the heater block. So if your ambient temp goes up the temp controller turns back on to compensate. The end result is thermal runaway and melt down, possible fire hazard. Again they kind of fixed this with the exhaust fans, but this isn't an idea setup for some materials which like a constant build chamber temp.

You can fix this by buying a creator pro thermocouple and running it from the heater block direct to the mainboard.