Batman looks horrible  

RE: Batman looks horrible

Another info: after printing I received the message "pause thermal error" (in Spanish but I'm translating it).

RE: Batman looks horrible

Please attach a picture of your first layer calibration. Also, what material are you using, and are you using a standard filament preset in the slicer?

A picture of what it is supposed to look like will also be helpful.

RE: Batman looks horrible

That's rather strange. I did the first layer calibration before printing batman and it was looking pretty good. I've just redone it and it looks pretty bad as well. Maybe because the message pause thermal error appeared and it messed it up. But this is how first layer looks now (I'm really having trouble to use Prusa, didn't use it for couple of years but I had no issues back then).

Batman should look this way (see attachment). But clearly, now the problem is that calibration is not working well even...

RE: Batman looks horrible

1. What printer do you have?

2. What filament brand and type are you using?

3. Are you using a standard filament preset in the slicer?

4. Do you think your filament is dry?

RE:

The nozzle is way to high, you need to lower it a lot. Rerun the first layer calibration until you get a proper result (see: https://help.prusa3d.com/article/first-layer-calibration-i3_112364) It might take you a few runs but it makes no sense to further troubleshoot and change stuff before you get the first layer right. Use the build-in first layer calibration (like for the pictures you took) since you do not have to worry about slicer settings and profiles when doing so.

The thermal error has nothing to do with that, I think. Ignore it for starters, if it reappears frequentliy you can start looking for a problem.

RE: Batman looks horrible

I agree that it looks like your nozzle is very high. I wonder if the PINDA sensor is not about 0.4mm to 1.0mm higher than the nozzle.You should check that, and then perform the XYZ calibration. Then try the first layer calibration again.

RE: Batman looks horrible

Hello!

Apaprently, when I did some calibration, I lost my Z calibration (it reset) so I had to re-do it again. As you mentioned, it was very high now and I set it up back to normal. I also had thermal anomaly that I fixed after pinda calibration, firmware flashed again and a full reset (Thanks to Prusa CS).

Now I redid the whole calibration and I could appreciate the left edges of the rectangles where a bit up (but right ones were looking well). I dared to print the batman again and it looks this way:

How can I fix/calibrate the last bits to have the printer working well? As you can see, around it's not fully perfect, on the left side it's bad and on the right side it looks pretty well.

Thank you,

RE: Batman looks horrible

Still too high. Redo the first layer calibration. Take a picture of the resulting rectangle still on the bed and post it here. 

RE: Batman looks horrible

PS and thoroughly clean the bed surface with lots of hot water and dish washing agent or lots of IPA and paper towels. Don’t touch the surface afterwards. 

RE: Batman looks horrible

I cleaned it with a specific alcohol.

I lowered it down from -0.9 to -1.0 and this is the result:

As you can see, lines are aligned, shape looks good... But the square looks funny of the left side.

RE: Batman looks horrible

I found that alcohol isn't sufficient to clean the smooth sheet. You need hot water and a dishwashing agent (i.e., Dawn) . I only use the satin sheet now because I got so tired of dealing with issues with the smooth sheet not being perfectly clean.

The square doesn't look good.  Do you have another filament to try? Something that you know is dry. You never said what type of filament you are using.

When I had my MK3S I used to print a 3" x 3" single layer square and adjust the z-height multiple times as it was printing. Then you can really get it dialed in properly.

RE: Batman looks horrible

I'm using PLA from Prusa. I had a filament that was giving horrible results so this filament is a new one that I just opened. I would expect to have issues on both sides if the filament is the problem. 

I use toilet paper + the alcohol to wash it well and I'ev just done it very thoroughly. Can it be something else?

RE: Batman looks horrible

Okay. Let's say the filament is okay, and you are using the Prusa PLA profile in the slicer so the temperatures should be correct.

As I wrote above, I don't think that alcohol is sufficient. And I think you need to print out a larger square and make a series of larger z-height adjustments while it is printing. Watch it print. You want to adjust it from too high to too low in order to get it right.

RE: Batman looks horrible

How does it look now?

RE: Batman looks horrible

Alcohol is perfectly suitable to degrease and clean the smooth PEI despite people frequently claiming it isn’t. I only use 70% IPA, lots of it and paper towels since I bought my MK3 a few years back and never had a adhesion problem. 

RE: Batman looks horrible

I reprinted Batman and this is the result

How do you see my last first layer calibration and this batman?
When removed, the actual piece was looking good. But it makes me wonder if it's right since around, before removing the extra filament, it looks so so.

Thanks

RE: Batman looks horrible

I printed the dragon that comes with the Prusa to see the result and it looks very good to me.

Do you think this is the best quality possible? 🙂

Thank you,

RE: Batman looks horrible

It's a little hard to tell from the pictures, but it looks good to me. There are a few little hairs that can easily be cleaned up. Sometimes I trim. Sometimes I use the heat gun

I have never printed the Adalinda - or the bat mask so I can't answer you directly but:

I would rate that print as good enough for the first few months.

Every user builds their printer slightly differently, pre-built models are shaken up in transit and second hand ones have an uncertain history followed by inexpert transportation so during the first few weeks of use the printer will run-in and settle its parts together; then you will have to go over the basic maintenance checks, lubricate and recalibrate. Even if you got everything dialled in perfectly today, it would all need re-doing.

Better to settle, temporarily, for a basic working printer and get some useful printing done, make your early mistakes, establish a routine and generally get used to the process. Then when you do your monthly services you can take extra care knowing the new settings on your now stable printer are likely to last for several months.

Cheerio,