My extruder on my wanhao i3 plus keeps on jamming and I am not sure as to why. I set something to print that I have done before and it will print a little bit of the model but then it stops extruding but the promgram keeps on going.
I have removed the fan so that I can see if there’s an issue with the cog but it looks to be gripping the filament fine, could it maybe be a heating issue?
any help will be greatly appreciated
V
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Maybe a clog has developed inside the nozzle or the hot end? Search for “atomic clog filament” on your favorite search engine and you’ll find some good step-by-step instructions for clearing clogs. Good luck!
I had a blockage that sounds similar recently. I couldn’t unblock it for any substantial length of time (not sure why it happened) so I replaced the throat and nozzle. It worked fine after that. Beware though, the throats sold by Wanhao do not come with the PTFE tube, you have to add that yourself
What material are you printing in? If you’re printing PETG, the extruder temps required are sufficient that it degrades the stock tube in the hotend. If that’s the case, I’d suggest going with the Micro-Swiss all metal hot end.
Have you recently switched to a similar material from a different manufacturer? I print in PLA right now, and I’ve seen temperature recommendations range from 185-210 C, and I’ve seen that what worked for, say, my Hatchbox spool doesn’t work with the stuff from MakerGeeks.
Have you run any cleaning filament through your printer? I ran a foot through at one point and subsequent prints were nothing short of amazing.
Do a full clean out of tub and nozzle. Also tri the cold pull to pull out anything stuck to the walls
If you are printing in PLA, some brands can be very dry. Unlike ABS, PLA doesn’t usually have any oil/lubrication in the filament. You could try adding a filament oiler/filter in line. Add a drop of oil to the filter and see if that helps. I have to add a drop every 8-10 hours of printing with the filament I use. It doesn’t take much. Keeps things extruding smoothly. I use canola oil.
Combination of a few things can cause it. Most of the causes I have had is dirty or dusty filament, cheap junk filament, out of size filament, worn ptfe tube or dirty extruder gears. I have the D4s, but I think they share the same MK10 extruder setup. The following is my attack when this happens, assuming it was working previously and no changes like hotend temp or bad/dirty filament. Hope this helps: If it’s slipping on the extruder gears then you get lots of little plastic bits in there. That can cause issues or its the hot end Unload the filament. Take off the fan and heatsink so you can see the gear. If you see the plastic in the gear teeth then just get a tooth pick or dental tool and scrape them out when it’s turning (load/unload filament cycle is the easiest way I do. ) Put it back together and see if that helps… If that didn’t help or it is generally clean in those gear teeth it my be your hot end. Two things can differ here. First, If You have the stock hot end with the PTFE tube inside, you need to get a replacement ptfe tube from somewhere (wanhaousa?) and maybe replace that, it can get messeed up over time and cause issues. Its straight forward and you can find youtube vids, etc for itm Or, if you have the all metal upgraded hot end (like a microswiss upgrade kit) You heat it up with the extruder and fan removed (again, I just send it through a load filament cycle…) once it is up to melt temp and the extruder removed, push your filament through the heat break hole into the hot end. Does it melt and come out the nozzle? Or Does it just get soft but not come out the nozzle? If it doesn’t come out the nozzle your jam is still in and you can try a “cold pull” to clear junk out. End the filament load cycle, let it cool a LITTLE and start to harden the filament, then get some plyers and pull it out of the hole, hopefully with any junk causing a jam. rinse, repeat a few times to get junk out of the nozzle. If you still can’t get the jam cleared try a long sharp pokey item that you can carefully and slowly insert and hopefully clear any jam. I have a “titanium soldering pick” that I sometimes have to use. But that is usually last resort and follow that up with a cold pull after you get filament flow in case any of the junk that clogged it to start with is on the sides still. Hope it helps! Steve
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I bought one same model have exactly same problem, and return back to wanhao dealer, I’m thinking this is fireware problem. Need ask wanhao company to solution for you.
Can you provide some pictures and settings you are using?
what slicer are you using?
filament?
temps?
was this happening before? Is it a new printer? If working before what changed?
hacky
May 8, 2017, 8:22pm
10
I have had the exact same problem with my wanhao duplicator after 1 year of frequent usage. It would print a few layers and then block.
It was the PTFE tube that was falling apart. The heater was not too good either, everything was smudged with burnt PLA and the insulation shredded.
I polished the heatblock like new, exchanged the whole hotend with a swiss all metal hotend and I never want to go back.
It never jams, heats up to 255 degrees in no time and works any time together with a lokbuild surface.
ps: don’t forget to check that the cold-end cooling-fan works and the extruder motor stays cool. If the cold-end is hot it makes your extruder block.
Are you using the same filament as before? If so I would clean the teeth of the machined hob, and double check the pressure pushing the filament against the hob you may need to increase. If it’s different filament then increase the heat by about 5 Celcius, if you’re using a different slicer or different slicing profile from the one you used on the successful print then check fan speeds it may be too high.
Hope this helps
Ok I finally got a chance to sit down and try to fix the issue (curse you uni!) and it worked! took a while but I got it working. it was the nozzle that got jammed so that was fun trying to get it flowing again without damaging it. Cheers!
