QU-BU Extruder Improvements

General discussion of 3D printers

Re: QU-BU Extruder Improvements

Postby Enraged » Sat Mar 02, 2013 5:33 pm

Well I'm done with these QU-BD extruders. After trying Barts filament tensioner thing, getting the new version of the barrel, and buying 2 Arcol hyena wheels, I'm still having jamming issues with 1.75mm PLA.

So I'm going to scavenge the parts and go back to a Wades Reloaded and Jhead, which was working fine until one of the parts cracked due to too much pressure from one of the bolts. Luckily it's not a total loss, I can use the heater cartridge (wrap some copper tape around it and it fits nicely in the Jhead), the thermistors, and the motors.

If anyone wants my QU-BD Modification Kit (Left) send me a PM.
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Re: QU-BU Extruder Improvements

Postby bdring » Sat Mar 02, 2013 5:52 pm

I still have occasional trouble with PLA. It gets so locked in there that no drive system could push it out. I can print small jobs if I use very short retracts.

To remove stuck PLA, I turn off the fan so the whole barrel heats up and run it a few degree hotter then pull it out. Try not to pull so hard the filament breaks. It is a real pain if that happens.
Bart
"If you didn't build it, you will never own it."
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Re: QU-BU Extruder Improvements

Postby Enraged » Sat Mar 02, 2013 5:57 pm

The solution I was considering for removing PLA from my QUBD was to remove the hot end and toss it out the window. Not sure if it will work or not.
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Re: QU-BU Extruder Improvements

Postby SystemsGuy » Sat Mar 02, 2013 5:59 pm

If the window is closed, I've found she who must be pleased is not. I prefer an open window and snow on the ground. To be fair, I didn't get Chelsea to send me the new tube, I'd already given up.


Enraged wrote:The solution I was considering for removing PLA from my QUBD was to remove the hot end and toss it out the window. Not sure if it will work or not.
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Re: QU-BU Extruder Improvements

Postby gofast » Tue Nov 26, 2013 5:48 am

Oh man....what have I done???

I just ordered a dual MBE from QU-BD because I wanted a commercially available extruder that was ready to go, sounds like I've just blown my money after reading this thread.

Matt
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Re: QU-BU Extruder Improvements

Postby dave3d » Tue Nov 26, 2013 11:55 am

I struggled for so long with a QU-BD extruder. Best decision I made was when I abandoned it and went to a Greggs Wade extruder and a MK V jhead from Hotends.com.
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