Avoiding early Prusa Mini Issues + Common Issues  

RE: Avoiding early Prusa Mini Issues + Common Issues

This post should be stuck to the top of the forum. 2 weeks in and mine developed the under-extrusion problem.

I suspect the unload/reload procedures - I wish it had some more 'manually' methods.

RE: Avoiding early Prusa Mini Issues + Common Issues

is there an official post with the things we should all be doing to get our printers working?  or is this going to be a time consuming effort going out and reading everything for details?

RE: Avoiding early Prusa Mini Issues + Common Issues

@benjamin-g11

There are some HOWTOs for MINI: https://manual.prusa3d.com/c/English_manuals#Section_How-to  

RE: Avoiding early Prusa Mini Issues + Common Issues

My printer has jammed a couple of times and it would not fully unload.  

I found these two steps worked:

1. Reload the filament
2. Unloaded a second time 

RE: Avoiding early Prusa Mini Issues + Common Issues

@crawlerin

awesome - but not what im looking for.

this is how to do stuff.  I want a checklist of things i SHOULD be checking and possibly fixing because of manufacturing defects or imperfections.

RE: Avoiding early Prusa Mini Issues + Common Issues

@benjamin-g11

No manufacturer ever is going to do that with their product, it would mean admitting their product is faulty ("You are holding it wrong!"). More innocuous way is to add chapters in assembly and regular maintenance about common printing issues, then it's up to user to figure it out.

RE: Avoiding early Prusa Mini Issues + Common Issues

@crawlerin

i respectfully disagree.  A smart business will respect its customers time so their customers can spend more money with them.

NOT doing this will make the experience worse for those that have had a terrible experience and drive them to look to alternatives.  This is business 101. Delight the customer.

RE: Avoiding early Prusa Mini Issues + Common Issues

I have underextrusion problem in fast movement tipically second layer. I have try everything...... cleaning , three screw unbuild extruder and extruder motor everything it's ok 🙁 some help?

RE: Avoiding early Prusa Mini Issues + Common Issues

@denial84

I had a similar problem and it resolved with cleaning filament.  

RE: Avoiding early Prusa Mini Issues + Common Issues

What filament? 

Slowing print down may help too, Slicer profiles are pretty aggressive with their speeds.

RE: Avoiding early Prusa Mini Issues + Common Issues

I have unscrew the 3 screw on the heat sink pull up extruded very firmly then tighten now work again 😱the distance is 3.5 mm not 4.8 that I’ve read 😨

RE: Avoiding early Prusa Mini Issues + Common Issues

Posted by: @crawlerin

What filament? 

Slowing print down may help too, Slicer profiles are pretty aggressive with their speeds.

yeah this help a lot! Why prusa use 80mm/s in quality setting if cannot reach this speed...

RE: Avoiding early Prusa Mini Issues + Common Issues

@crawlerin

eSun

RE: Avoiding early Prusa Mini Issues + Common Issues

@crawlerin

eSun

RE: Avoiding early Prusa Mini Issues + Common Issues

@an-prusa3d

It seems to me like none of these problems were addressed because my August delivered printer has seemingly all of these problems.

RE: Avoiding early Prusa Mini Issues + Common Issues

In August, I received three minis that I bought and all three experience the same problem that you say in this forum.
The solution that worked for some, unfortunately it was not for me.

RE: Avoiding early Prusa Mini Issues + Common Issues

I had the clogging issue after 2 days of ownership (prusament PLA + prusament PLA blend). didn't know what to do. frustrated. hot-end reassemble video was very helpful. I had not planed on becoming this  kind of an expert in 3d-printing. well at least not in the first week.

while I was adjusting the MINDA position, I noticed that there was a screw missing (back screw that holds the minda-brace).

one from the spare parts bag had the correct length.

2 prints since then: both fine

RE: Avoiding early Prusa Mini Issues + Common Issues

the gap allowed filament to build this structure. was ok with the first layer (slow extrusion) but as the printer sped up, the temperature in this area sank, the filament hardened and jammed.

RE: Avoiding early Prusa Mini Issues + Common Issues

@quattro

Wow, that is a pretty defined structure!  

RE: Avoiding early Prusa Mini Issues + Common Issues

is this part of the printer (bottom end of the tube) supposed to get so hot that the filament melts?