Replacement parts
Hi my wife bought me the MK3 kit for a combination of Christmas and my birthday gift this year which I received over a week ago. I built it up as instructed and got a really nice couple of prints from it. Very impressed...
But then it started to 'click' the filament as it went through the extruder motor. I changed my settings to go slower but it kept on happening.
I changed the retraction settings and gave the nozzle a clean. It would print fine for the first hour or so and then fail the print from under-extrusion.
I watched the next print to make sure it wasn't the filament from the spool causing it to get caught and not allow the filament to pass. It wasn't that.
I loosened the tension spring screws to the loosest setting and tried again. Tightening each time to see if it would make a difference. It didn't.
I checked the gears to see if they had any residue on them. They were clean.
I removed the PTFE tube to see if there was anything in there. Nothing.
I tried printing in ABS with the normal prusa settings. The clicking persisted.
I've taken the printer apart and put back together again about 20 times now. I've run out of cable ties.
On the last strip down I over-tightened a screw in the hot end housing and it would turn freely inside the printed part. I had to break the part to get at the bolt. During this procedure I snapped the cable to the hot end block so now I am completely stuck.
Is there a way to buy a new extruder unit with hot end attached? I don't need the motor or the fans I think they are still working.
Is this an unusual problem?
Re: Replacement parts
I had similar issues, swapped the nozzle to a new one and everything works again. Something must have clogged it up.
Try this first:
http://help.prusa3d.com/l/en/article/WWVRzOY1dX-clogged-nozzle
Re: Replacement parts
I have a broken heating element and no body to house the extruder or hot end.
I need these things first in order to try a new nozzle.
Re: Replacement parts
Replacement plastic parts are $3 plus shipping from prusa or you can get the part Stl from git and have a friend or printing service print for you. The heater cartridge is also available from prusa. I think $10
Hit up their chat to get the right parts.
As for the clicking, I just had this happen a few days ago. What is happening is the nozzle end us restricted, either some burnt filament (from going from pla to abs or a buildup of dust or particles from the filament. For instance if you print woodfill or bronze carbon ect it may restrict your your flow. You can use pla, abs or nylon and do a cold pull when you get the printer back to functioning.
Heat the printer up
Load filament
Use the included acupuncture needle and poke through the nozzle hole
Wait 10 minutes cool down to 20
Heat to:
60c pla
160c abs
140c nylon
Then pull up on the filament using pliers this should suck out any obstruction. You might see black particles if your filament is lighter colored or transparent.
Rinse and repeat until no black particles are seen.
I used nylon because it's white so you can see any particles and it has a high tensile strength so you can easily pull it out I did the needle on the first pull and had lots of black. Did not use the needle on the second and third pulls and it is working fine.
By fine I mean I can shut off the filament sensor and hit load on an already loaded filament and it just pushes out this fat string without any clicking. That's is the full volumetric capacity of the extruder. So I know the nozzle is wide open
Re: Replacement parts
parts, plastic
https://shop.prusa3d.com/en/3d-printer-parts/70-spare-plastic-part.html
heater and thermisor (not sure which you broke)
https://shop.prusa3d.com/en/mk2-spare-parts/122-e3d-40w-heater-cartridge.html
https://shop.prusa3d.com/en/mk2-spare-parts/145-es3.html
printable plastic parts here in case you have someone to print them. if you were near to sioux falls, i'd gladly do it for you
https://github.com/prusa3d/Original-Prusa-i3/tree/MK3/Printed-Parts/stl
Re: Replacement parts
Thank you for your help chris.6
I need a new heater but the shop does not allow me to "access" the part?
"Error 1 - You do not have access to this product."
Which is helpful.
I'm going to order the 3d printed parts now, and try to find the other bits from E3D.
Re: Replacement parts
You have to talk to chat and they will give you access (it is only for MK3 owners).
Re: Replacement parts
I am an owner, but because it was a gift from my wife, I am not allowed access to the full forum or the products it seems.
I have emailed Prusa, but they haven't responded (3 days ago).
Re: Replacement parts
Just hit them up on live chat...
Re: Replacement parts
I am an owner, but because it was a gift from my wife, I am not allowed access to the full forum or the products it seems.
I have emailed Prusa, but they haven't responded (3 days ago).
Eh. Maybe ask the wife to login then so you can do what you need to do? Seems like a pretty simple fix. I mean it is your wife. Lol