My take on a Bowden setup! It’s got a finger hole now!
Fail? Hot end cooled down, then comes the clicking? Dammit. I had a perfect first layer. This da Vinci is just as big of bitch as the ender and kossel. I’ve replaced the heater and thermister, new extruder and feeder set up. Same problem? Print starts and runs fine, hot end cools doun, clicking and fail?
I would suspect that the hotend wires are not screw clamped in at the controller board well enough. This is so common for the bed. I do not think as many people have a problem with it for the hotend, but you might.
@NathanielStenzel thanks , I will give it a shot!
This printer has had the hot end resister soldered closed and #4 fuse added. The hot end is a plug? I don’t see any signs of over heating?
I’m getting a solid 0 ohms reading across the 12v terminal and the hot end
The controller board often has screw terminals. Wires connected to the hotend’s heater cartridge or heating resistor may be connected at those screw terminals. Some people do not have the wires secured well enough.
0 ohms where exactly? What two points? Resistor soldered closed? I do not understand. Hmmm…give us some pictures?
How does it work?
How does it work?
I guess it’s a common problem on these machines to burn out the resistor, so the fix is to solder over the resister and ad a fuse?
@ELISHA_AWI it actually works really well, I just have to figure out why the hot end is cooling off 10 mins. Into the print?
R271 looks bad to me. R272 might have been effected, but I am not sure. The E1 heater may have a loose connection. I have doubts that the crimp job on the plug side of the E1 heater is proper. What is with the stray orange wire in the upper right hand corner of the first picture? What does the screw terminal wires connect to? Is it the heated bed wires in the plug next to the screw terminal?
I hope you unplugged the E1 heater plug before welding the fuse in. Otherwise, you may have caused the board to fry next to the plug.
I didn’t do any of these mods. I picked up this printer for $50. That stray wire looks factory, the screw terminals are heat bed. Yea, that r271 is the hot end resistor, the previous owner soldered over it and added the fuse. I’ve seen guys doing this mod in forums . I don’t see anything that looks overheated or damaged, I think I’m going to move on to replacing the plugs?
You do not see a dark area around R271?
I would unplug the hotend plug and check to see if the clips of the ferrules are all of the way in. Check to see if there is a reasonable resistance on the ferrules. Check to see if any wires are willing to pull out with a minimum of force.
@NathanielStenzel i can’t tell if the r271 burned out, or if the dark area is just from the solder mod? The terminals look ok. I need to find something to release them from the housing, small paper clip. That’s for later, I just got off work and need to go do the motor mounts in the firebird my son drives!
@DayRider76 I think that is a clip towards the top of the picture. Press and pull. That should work for unplugging it. The rest I would not know.