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[Solved] How am I supposed to clean this? Bad design?  

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brentstrong07
(@brentstrong07)
New Member
How am I supposed to clean this? Bad design?

I have used this printer 3 times now. When I feed load filament it seems to not work very well, like sometimes it will not grab it or feed. Today, I went to print my third thing and the filament got stuck in the tube like half way. I found the latch to see the gears and the gears have stripped the filament. It was very difficult to get the filament out and I was heated to 260 but I managed to do so and the filament was all chewed up from this gear. It appears this gear cannot be cleaned and the worse part is it doesn't work well so I fear this will become an issue not worth dealing with. I hope I am wrong because I otherwise have loved this new printer for the first two prints. I have tried a wire brush and canned air and both fail to get the white filament residue off the gears. It seems there is no way to get at the gears to clean them. Additionally, my unit will no longer load filament and is currently a really cool looking paper weight. Anyone else? Suggestions? Thanks, see pics.

 

This topic was modified 2 years ago by brentstrong07
Posted : 06/06/2020 11:45 pm
brentstrong07
(@brentstrong07)
New Member
Topic starter answered:
RE: How am I supposed to clean this? Bad design?

Problem was the tensioner screw I knew nothing about. Back to loving the device!

Posted : 07/06/2020 1:20 am
Robee Shepherd
(@robee-shepherd)
Estimable Member
RE: How am I supposed to clean this? Bad design?

I learned a lot about the extruder assembly in my first few weeks, its actually really easy to disassemble and clean the gears. Once you get the tension right (which it sounds like you have now!) you'll probably not have to worry about it for many months (if at all!). But if you ever find you need to clean the gear, don't be scared to take that bit apart following the instructions.

Posted : 07/06/2020 7:41 pm
michaelbujaki2@gmail.com
(@michaelbujaki2gmail-com)
Active Member
RE: How am I supposed to clean this? Bad design?

@robee-shepherd

Where can I find the instructions for taking the extruder apart?

Posted : 05/04/2021 7:48 pm
Robee Shepherd
(@robee-shepherd)
Estimable Member
RE: How am I supposed to clean this? Bad design?

Here you go:

https://help.prusa3d.com/en/guide/how-to-access-and-clean-the-extruder-pulley-mini-mini_126457

 

Posted : 05/04/2021 7:56 pm
3DK
 3DK
(@3dk)
Eminent Member
RE: How am I supposed to clean this? Bad design?

There is no need to take the extruder to pieces for regular cleaning. You can clean the gears through the hole at the top with a sewing needle and a vacuum cleaner. I find that wearing a headband with magnifying lenses, even with cheap plastic lenses, helps a lot. It takes a little patience. With the point of the needle, push out the plastic from 3-4 cogs. Then use your vacuum cleaner to remove the displaced pieces. Next, rotate the wheel a little with your finger nail. Repeat. 

This post was modified 1 year ago 2 times by 3DK
Posted : 07/04/2021 7:43 am
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