Vertical lines on my prints. (This is not infill showing)  

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ssill2
(@ssill2)
Honorable Member

The stock stuff honestly works great.   I bought both my printers assembled.

Here's an XYZ cube.

The quality is pretty good for the price of one of these printers.

My only current gripe is with the MMU2S and I plan rectify that by probably getting an E3D tool changer instead.  But the base printer without the MMU is great!  As others have pointed out, you can spend many thousands of dollars on a 3d printer.  I would not buy a cheaper brand of printer and expect the quality of a prusa.  That being said, prusa is my first 3d printer, but I see no reason to change printers for single filament printing.

 

Posted : 16/05/2021 4:29 pm
ILovePrusa74
(@iloveprusa74)
Active Member

@ssill2

Can you show a photo of y please? I have most quality issues on y. So I could compare. 

Maybe someone else could tell me if my photo of y shows a normal quality or not. 

I have bought a mmu2s but I have not assembled it. I hope it will work fine. I have heard from many people that it makes a lot of problems. Others say it's just fine-tuning and then the mmu2s is very reliable with no problems.

I am curious.

Posted : 16/05/2021 6:16 pm
ssill2
(@ssill2)
Honorable Member

The one in white PETG I printed months ago.

The one in clear PETG I printed yesterday.

I can only tell you my experience with the MMU2S.  Today, currently, it's working.  But tomorrow under the same circumstances it might not lol   I can't count on it to work every time.  As most folks on here will tell you, that with upgraded parts, and replacement tubes, it can me made to work.  I have some 3mm ID 4mmOD tubes coming that I hope will get things more stable.  Be prepared for a lot of frustration should you choose to hook it up.   I use it primarily for soluble supports, seldom do I do multi color prints.   just recently I sort of got PLA and PETG working with  BVOH filament so I'm happy, but I still intend to replace the MMU with another printer that has multiple extruders.  I hate the amount of wasted filament from all the purging, especially with solubles since you have to purge a lot when changing from soluble to the non-soluble filament to ensure none of the soluble ends up in your model.

Posted : 16/05/2021 6:35 pm
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 --
(@)
Illustrious Member

@iloveprusa74

Maybe someone else could tell me if my photo of y shows a normal quality or not. 

I did say in about the second post that your prints look good - but you seem to have ignored the reply.

Those are normal vertical surface artifacts. Part of printing in layers with stepper motors.

Posted : 16/05/2021 6:37 pm
cwbullet
(@cwbullet)
Illustrious Member

The white has some artifacts.  I agree with Bob, the second looks pretty good.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 16/05/2021 7:29 pm
ILovePrusa74
(@iloveprusa74)
Active Member

@ssill2

I hope I won't get frustrated with the MMU. Perhaps I do have more luck than others. 🙂

I have seen the huge purge blocks in videos. I don't like them too. But sometimes I wish I could print more then one colour.

Posted : 16/05/2021 8:50 pm
ILovePrusa74
(@iloveprusa74)
Active Member

@tim-2

Oh sorry. I didn't ignore that. Maybe I didn't read attentive enough. Again sorry for that.

Posted : 16/05/2021 8:53 pm
ssill2
(@ssill2)
Honorable Member

@iloveprusa74

on a decent sized print, especially with soluble where you're purging a substantial amount of filament the purge block can be larger than the model! lol  I hate throwing it away at the end.   I do wish you success with the MMU, but I think you should know what you're getting into.  I'm glad I have a second printer that's a stock MK3S+ to do things like TPU, etc.   Bottom line is the MMU adds a lot more complexity and you should be comfortable with the base printer before you try to add the MMU.

Posted : 16/05/2021 9:52 pm
ILovePrusa74
(@iloveprusa74)
Active Member

@ssill2

I have read you can easily switch MMU on or off. So you only have the additional complexity of you really need it.

Posted : 16/05/2021 10:27 pm
ssill2
(@ssill2)
Honorable Member

it's not quite that easy lol.  you can make/install a switch, but that's not quite as easy.

Posted : 16/05/2021 10:37 pm
ILovePrusa74
(@iloveprusa74)
Active Member

@ssill2

That's the recommended solution that I read about:

1) Disconnect the bowden tube from the MK3 extruder.
2) Disconnect the MMU power and/or signal cable.
3) Cycle the power on the MK3.

If that really works then it's not very difficult.

Posted : 16/05/2021 11:13 pm
ssill2
(@ssill2)
Honorable Member

Wait until you're doing that on a regular basis lol.

Posted : 16/05/2021 11:22 pm
cwbullet
(@cwbullet)
Illustrious Member

@iloveprusa74

The MK3 does not have a Bowden tube.  Am I missing something?

--------------------
Chuck H
3D Printer Review Blog...
Posted : 17/05/2021 12:40 am
ssill2
(@ssill2)
Honorable Member

@cwbullet

he has the MMU2 but hasn't installed it yet.  After he installs it will have a bowden tube.

Posted : 17/05/2021 1:00 am
cwbullet
(@cwbullet)
Illustrious Member

@ssill2

Ok, that makes sense.  I missed MMU2 above.  It is in the regular MK3S forum.  

This post was modified 4 weeks ago by cwbullet
--------------------
Chuck H
3D Printer Review Blog...
Posted : 17/05/2021 1:02 am
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