Please help in printing  

RE:

Hey and welcome to the forum,

fist of all, this is literally the "printing help" forum, using a topic like "Please help in printing" is not helping others with the same problem to find the thing they are looking for. In your case "adhesion problems mid print" or "model detaching from surface" would be a better choice. 

Anyway, the two key factors for your kind of failure are: fist layer calibration and clean build plate, secondary factors are poorly designed model, wrong orientation, missing supports and choice of infill.

To tackle the key factors: run the build in first layer calibration and post a picture of the result still on the bed and clean your print bed (either lots of dish washing agent and hot water to rinse or lots of 99% IPA and paper towels. Both work nicely when done correctly. Don't ever touch the surface with your fingers, if you do: repeat cleaning)

Before printing new filament, always check the table at https://help.prusa3d.com/materials for compatibility.

RE: Please help in printing

Everything robin said is good advice. Please follow it. In addition, 280 is crazy high for Overture PETG, or PETG in general. I print Overture PETG at 230. 

RE: Please help in printing

Everything Robin and fuchsr said is good advice. What surface are you using? Generally PETG sticks too well, and can pull off the PEI from the surface. It generally does not loosen easily. Take pictures of your own results, of the print and the first layer as Robin asked for. That will be a lot more help to diagnose the issue.

Regards,

Mark

RE:

I agree with Robin about topic subject not helpful. I tried updating but did not see option. Will take more care next time.

Nozzle temp at 280 was typo. I was printing at 240.

Here are pictures of print and   first layer calibration.

broken print

area which printed well

first layer calibration result

First layer calibration setting

RE: Please help in printing

You need to take a close up picture of the rectangle on the first layer calibration.

I will hope a moderator can change the title.

Regards,

Mark

RE: Please help in printing

This model should print fine although it doesn't have much contact surface area for a model that  height. As suggested before, wash the sheet with plenty of hot water and dish washing soap. You can clearly see crud on the last photo. Also, while it shouldn't be necessary you may want to put a brim around the model to give it more context surface. Last, and it's always hard to judge from photos, with the way you scaled you may have a lot of gap infill. I'd try to adjust my extrusion width for perimeters to get rid of the gap infill or deselect gap infill in print settings. Gap infill may cause vibrations which in turn may help loosen the model's grip on the print surface. 

RE: Please help in printing

Here is close up picture

RE: Please help in printing

I wil wash the plate. Could you please point me in some instructions where i can understand more on infill and how to change settings. If i upload gcode and modified stls. Can it be verified?

RE: Please help in printing

If you want feedback/help with settings it‘s best to upload a saved (3mf) and zipped (needed for the forum to accept the file as upload) slicer project file. It contains the model and all settings. 

RE: Please help in printing

Your first layer looks good, a little bit too low maybe, but I‘d leave it there for the time being. 

RE:

I'd recommend to set Prusa Slicer to "simple" mode and start printing simple models. Learn about the available settings in the KB: https://help.prusa3d.com/category/prusaslicer_204  and if you are familiar with everything switch to "advanced" and repeat. Finally "expert" and repeat.

Always start with default settings (unless you know exactly what you are doing), change only one thing at a time, look how that affects the result.

If you run into problems with a specific model, get help in the forum...

RE:

here is model file attached.

AngelFish breeding cone - scaled

RE: Please help in printing

Hi Robin, I have attached file in another post. 

There's nothing obvious wrong with your settings.

I see no point in using 0.15mm layers, the 0.2mm SPEED setting should be fine.

As @fuchsr pointed out it is rather tall for the contact area, so set elephant's foot compensation to zero and add a few mm of brim.

The print sheet cleaning advice above is sound.  Starting with a scrupulously clean sheet - if it is textured or satin use it as it is with PETG, if it is the smooth sheet then either use a spray of Windex or a single line of gluestick spread around with a wet tissue.

Cheerio,

RE: Please help in printing

What Diem said.

And: Why did you change the "perimeter transition length" in Aracne advanced section? I'd use classic parameter engine anyway (until the bugs are sorted out, but I don't think your model is affected). Do not use grid infill in tall and/or big objects since it has crossing lines which might result in collisions and object detachment (in your case it won't make much of a difference since the space to fill is not big enough for crossings). 

RE: Please help in printing

Will try out and come back

RE: Please help in printing

here is updated 3mf file. I have tried to implement all suggestion. if possible, please see and let me it looks good. 

I will start printing if this looks good.

That has a better chance of working.

Cheerio,

RE: Please help in printing

One change I would suggest: change perimeters from 2 to 3. This will get rid of all the sparse infill in the main part of the cone which I suspect may cause some irregularities on the curved outer surfaces.