Quote Originally Posted by clough42 View Post
The extra current doesn't hurt the motors, but it does make them get hot. The heat is only really a problem with the extruder motor, which is mounted to a plastic part. You can either turn down the current on the extruder motor, or you can add a fan with an appropriate shroud. My shroud is here: http://www.thingiverse.com/thing:34302
Looks like the wrong link, or I don't understand how that thing is used with motors

Quote Originally Posted by clough42 View Post
Or you can ditch the Greg's extruder altogether and use something else. Here's what I'm currently using: http://www.thingiverse.com/thing:389105
How is that extruder really different from Greg's? Except for the belt general construction looks very close, motor is still mounted directly to plastic. I have a great heat problem with extruder, it melted original small gear that came with the kit, and now it melted mount I printed with PLA. I gets so hot I can't really touch it, and it's set to 0.37v.