ABS really bad surface finishing (help)  

RE: ABS really bad surface finishing (help)

What setting are you using and are you sure it is dry?

Are you in an enclosure?

RE: ABS really bad surface finishing (help)

@cwbullet

Hi cwbullet

Thank you for your interest.

I'm using the "prusa ABS" filament setting.

The spool is brand new, just open. so it should still be dry.

I'm not using an enclosure.

but running 110 degrees on bed. and 255 on hotend

Have you ever experients the same?

Best Regards

Max Bursell

RE: ABS really bad surface finishing (help)

@max-bursell

I have never been able to get ABS to print without an enclosure.  It just will not print without warping or any respectable quality.  

What is the brand of ABS?

RE: ABS really bad surface finishing (help)

@cwbullet

Im using the 3DE premium ABS filament

Thank you so much for your help
Best regards 

Max Bursell

RE: ABS really bad surface finishing (help)

I would suggest that it is bedded upside down.  Those first layers also look suspect (wavy like water, Z too low).

RE: ABS really bad surface finishing (help)

@dan-rogers

Hard to tell with the poor quality but you might be right.

RE: ABS really bad surface finishing (help)

It looks like layer one is going down is too low (too thin).  But I'd flip the part over rather than try printing that as shown in the preview - with supports the surface will never be serviceable.

RE: ABS really bad surface finishing (help)

A draft shield will help if you don't have an enclosure.

+1 for flipping the part over

RE: ABS really bad surface finishing (help)

@max-bursell

Can you possibly post a zipped up .3mf project file, this would allow us to stop guessing and take a look at the settings your using in conjunction with your model, and the images you have posted provide clues as well. you can post the zipped up .3mf using the in the upper corner of the reply window.  this could be a simple cooling issue, it could be layer height, wet filament, ect,,. you get the idea the .3mf really helps since we can't be sitting there with you.

Good Luck

Swiss_Cheese

RE: ABS really bad surface finishing (help)

I've had good luck printing ABS on the I3 before I got the enclosure by using the Draft Shield.  It's available in both PrusaSlicer and Cura.

I do agree that the overall print quality with ABS is better and more consistent with an enclosure.

If I were printing this, I would print it with the large flat surface touching the build plate.  I would also use supports, but be sure to tweak the Z distance to .2 or .25 for 'break away' support material.

RE: ABS really bad surface finishing (help)

@jsw

Outside of ABS-T, I have had the same experiences.  

RE: ABS really bad surface finishing (help)

I'm really not familiar with ABS-T.  Chuck, what would you say the advantage(s) of ABS-T would be over plain old ABS?

I've seen it on the Filament-PM site, but never really considered ordering it.

RE: ABS really bad surface finishing (help)

@jsw

ABT-T is easier to print. ABS-T is suitable to print objects that have temperature stability into the 100°C and higher strength and hardness.  It is an acetone-soluble polymer. It does have a tendency to warp but less so than ABS.  

RE: ABS really bad surface finishing (help)

I'd leave the part in the orientation shown in your images, it offers the best chance for success, the default support settings with a XY separation of 1.5mm will be your best bet and leave the Z contact at 0.1 for your best support they will remove just fine if your printing at 0.15mm layer height.

you have not provided a project file so basically it's anyone's guess.

P.s. @Charles ABS can be printed fine outside of an enclosure, it really depends on the models shape, size and environment your printing in, skirts and temporary/permanent enclosures can defiantly assist in ease of printing though.  

Good Luck 

Swiss_Cheese

RE: ABS really bad surface finishing (help)

@swiss_cheese

I have found that I am more successful with less warping and fumes in an enclosure.  If you can do it, congrats,  I can not.  

RE: ABS really bad surface finishing (help)

@charles

I can, however like yourself I know that an enclosure works best, it's just easier. I mention that to you specifically because while you may have had a bad experience outside the enclosure it is possible and not always difficult.  I don't want the OP thinking that it can't be done, they are new to the material and impressionable, the OP's part is a very simple low profile part and should be easy to maintain the heat around at that level without an enclosure, as towlerg mentioned the use of a skirt should handle a model like that nicely.

As for flipping it over (I know you didn't mention this) I think that's not the right way to go, if you examine the model it has long round edges and would be a much better candidate in my experience for being printed on supports in the orientation shown.

Regards

Swiss_Cheese

RE: ABS really bad surface finishing (help)

@swiss_cheese

I concur.  You get more successful prints more often.