Ender 3 Pro and ABS

The printer is stock and I have an enclosure.

Will this printer reliably print ABS as is? I have a spool of Novamaker filament.
If not, what upgrades, or forget about it on this printer?

I have the magnetic bed. Is there any prep I might need to do? Glue?

What temps work for ABS? I'm seeing 235ºC and 110ºC to start and adjust from there.

What enclosure temps are generated? Is there a limit before things go downhill?

I'm assuming the enclosure port for the power supply should be open a bit to allow PS cooling. A vent to outside will be used.

TIA

With an enclosure printing ABS at 232C with the bed set to 96C Have 3D Printer over 2 year now with these settings.

recommended bed setting is 85c for abs - but as cliff shows - each machine and setup is unique.
The ideakl bed temp is often the glass temp. So the point that filament begins to soften enough to not shrink from thermal cooling - but not enough to deform under pressure because it's too soft.

The best advice is to simply find something small and useful and print them with different settings.

All we can really do is tell you what works for us.
We are NOT using your printer, in your enclosure and in your work room.
(you sure as hell are not using anything in what remotely resembles my work room: warmed up today, a sweltering 15c !)

One of the best pieces of advice I can give you is to simply print things.
Approach tempo changes sensibly and above all else DON'T PRINT BENCHIES !

Find something small and useful - I tend to use shopping trolley release keys - and use that for a test file.

A benchy teaches you nothing you can't learn from almost ANY other print.
So make something you actually want.

My son is designing, and I am printing, Hank the Hexabot. Something he's been designing for quite a few years.
So far it's all PLA, but some parts might be better in ABS. So we'll give it a go.

One Benchy, one Baby Yoda, and one Garden Gnome was enough.

lol you can't go wrong witha baby yoda at the moment :-)

you migh want to look at pet-g, rather than abs,

If it's for 'click together' joints then pet-g is way way better than abs. For everything else pla is going to be better than abs.

Pet-g has a lot more 'give' than abs. It's not as rigid or strong as pla - but it's 'tpugh' so is unlikely to crack if a particular joint is a tight fit.
And it's pretty easy to print with.

Quote:

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Originally Posted by curious aardvark

I tend to use shopping trolley release keys - and use that for a test file..

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OK, I must ask, what is a trolly release key?
In my mind it's a key to release a shopping cart from the rental lines. No?

I'll give pet-g a look. From what I've been reading here, it doesn't appear to be a favorite filament of some.

We want some flex in parts such as the main frame. So far we have the frame, and have finished the first leg sections. I'm printing the second leg sections now. Electronics mounts are next. PLA has been working very well for everything.
Frame length is 212mm long. This thing is going to be a pretty good sized bot crawling around the floors.

yeah Trolley, think Harry Potter.. cart with wheels, least that is what I imagined as a Yank!

Quote:

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Originally Posted by Axl_Myk

OK, I must ask, what is a trolly release key?

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We do not have any of these where I live but found this
https://www.youtube.com/watch?v=GZpdDch2o4M

All ABS's are not equal. We have been printing with ABS for about a Year and have tried 3 different Filaments 2 of which worked well the best was ABS-x from Mitsubishi Chemicals in Holland and sold widely as a own brand in UK by OOznest and 3dfilaprint the next best we found was also made by them. The 3rd filament whos brand name I won't quote was difficult to get to adhere to any surface and when it did stick but after after mm of print height it warped so much that it split along the layer lines.

The other 2 filaments we print on Tufnol (garalite) sheets with a coating of ABS milk (10g of ABS in 100ml Acetone)
On the simplest (Crudest) of all machines an Ender 3 pro but in an enclosure we routinely print ABS pro and ABS norm. without problems.

our Print setting are slightly different from Aardvark's
Print 250C
Initial Layer 245C
Bed 80C

Print speed 100mm/S

we normally use a skirt

PS I agree with Aardvark that PET-G is nicer to prinf and gives better results if you aren't bothered with chemical compatability.

well as a rule pet-g is far more chemical resistant than abs.
what are you using that attacks pet-g ?

@gambo - ABS at 100mm/s - now that's impressive !

And yeah there are a LOT of different recipe abs's out there now. I guess I need to adjsut my viewpoint - again lol
Is there one that doesn't smell like a chemical factory's exhaust vents ?
That's probably my main personal objection to it.

As far as flexiblily goes - pet'g is a LOT tougher than abs. I wouldn't like to make a living hinge with abs, but could definitely do one with pet-g. Also Pet-g has higher glass point. It's not as stiff as abs, but is much much better in outside or aquatic environments. Considerably more uv resistant.

PET (NOT pet-g) - is probably the nearest user friendy direct equivalent to abs. In that it's stiffer than pet-g, but also more brittle.
ASA is the most direct equivalent to abs and is easier to print with. But it still stinks my workshop out.

My crunch tests have pet and abs about the same. But pet has way better layer adhesion.
Unfortunaterly PET is difficult to find - the roll I have was sent by mistake. Well it was advertised as pet-g.
And weirdly works best when 'damp'.

But as has been mentioned, there has been a lot of modified abs filaments released in the last 5 years since I stopped using it.

And as I said - everyone's setup is different.

Best advice is to buy a bunch of samples and see what works best for you: https://globalfsd.com/
Therev are probably other sellers who do sample lengths. but as far as I know - globalfsd - do more than anyone else.
https://globalfsd.com/abs-filaments-5-c.asp

They even do a polycarbonate-abs blend. Now that would be an interesting beast.

I used to get all the newest filament samples from the tct show. But - obviously - there wasn't one last year and there were no filament manufacturers or retailers there in 2019.
So I'm a couple years out of date :-(

Well they do samples of abs-x - claims low warpage and very low odour.
Might have to give that a try.

Og yeah - trolley keys are for releasing supermarket shopping trolleys without having to use a trapped coin.

Essentially they are a semi-circle the thickness and diameter of the coin used to 'buy' a trolley. attached to a stick.
You poke it in the coin slot and wiggle it about to release the trolley and then turn it sideways andremove.
You then have a trolley you can safely abandon anywhere and never need have a coin with you ever again.
They cost a couple of cents to make, take about 5 minutes to print. And if - like me - you have your company name or logo written on them, it's really easy too see how well the filament is printing.
They are great for mass producing and are a giveaway that people will keep and use (hence the name and/or logo).
And can even be sold to small companies as a keyring give-a-way.

I've made them in loony (canadian one dollar coin has picture of a loon on and are commonly called loonies) size for my sister in canada, euro size for friends in ireland and pound coin size for the uk.

No idea what coin is used in the states, but I've probably got one I can use to measure :-)

If you can't be bothered to desing your own - lots on thingiverse:
https://www.thingiverse.com/search?q...&sort=relevant

well I was going to buy a 10metre sample of white abs-x,
but with post they want £4.95 - which is taking the piss somewhat !

@gambo - you got any offcuts I could have ? happy to pay postage :-)
A small coil could go in a small envelope with 2nd class stamp.
I've got bags and bags of samples or all kinds of filaments if you fancy something in exchange instead :-)
Hell I've even got three rolls of abs-pro that were free at one tct - so we grabbed a few ;-)

where abouts in the uk are you ?

Hi Aadvark ABS-x from 3dFilapint and ABS-pro from OOznest are the same material made in Holland by Mitsubishi Chemicals subsidiary that Used to be called Dutch Filaments.

As to chemical resistance you are quiet right PET-G does have a very good chemical resistance profile but unfortunately it does break down when exposed to polyphenols which we use in one of our processes and also slowly to some strong alkali solutions again which we use. I found that out the hard way many years ago when I store a strong basic solution in a PET bottle because I had run out of HDPE bottles and had a mess to clear up.

I have just started using PET-G though and as you say not withstanding the above problems where it can be used it is pretty good stuff. Incidentally the PET-G I am using also comes from Dutch Filaments.

Finally send me an address and I will happily send You a sample of the ABS-x/pro I have.