What is the strongest way to bond styrene onto ABS?

[Russ BParticipant @russb]

3D printing machines are not uncommon these days, and are probably what a lathe and mill was to many 50 years ago.

So you (or someone else) could print a labyrinth of HIPS and HDPE layer by layer (both of which are available in 1.75mm or 3.0mm spooled filament – although not that common, especially not HDPE, partly as its nearly impossible to get it to bond to anything, and it degrades slightly when extruded – I think)

This would be completely impossible using conventional methods and on a dual extruder machine the HDPE and HIPS could be interwoven without needing to stop and change the filament! I would say probably start with HIPS as it will more easily bond to the build plate and then capture pockets of HDPE in the HIPS and build up layer by layer from there – its as simple as designing the part in 3D and using a software like MatterControl with MatterSlice or Slic3r it will automatically "slice" the 3D part into layers of your chosen thickness and print away automatically.

I wonder if a thin piece could be 3D printed made up of dotted HIPS and HDPE as a sort of bonding medium via suitable chemicals between pieces of pure HDPE and HIPS

I have a large 3D printer but it's a single filament machine and I'm not planning on converting it to a dual material/color any time soon (walking before I can run!)

Here's the sort of quality a novice (that's me!) can achieve. This was Verbatim ABS printed in 0.1mm layers through a "medium" 0.5mm nozzle @230°C on a 80°C borosilicate (Pyrex?) build plate with Elmers Disappearing Purple glue (as ABS doesn't stick to glass!) – All good (clean!) fun and easy to keep SWMBO happy with pretty pussy cats for calibration pieces 

And for my next trick: http://www.thingiverse.com/thing:536050

Edited By Russ B on 10/11/2015 14:38:16

Edited By Russ B on 10/11/2015 14:39:31

Edited By Russ B on 10/11/2015 14:41:03

[Neil WyattModerator @neilwyatt]

John,

Look up "Threaded Inserts and Other Hot Topics" by Mark Noel in MEW 225. All about how to perform the operation in the home workshop.

Neil

[John Smith 47Participant @johnsmith47]

Posted by Neil Wyatt on 10/11/2015 20:16:54:

John,

Look up "Threaded Inserts and Other Hot Topics" by Mark Noel in MEW 225. All about how to perform the operation in the home workshop.

Neil

Do I have to be a subscriber to see this?
I searched online briefly but without success …

Thanks

[Martin KyteParticipant @martinkyte99762]

What about

**LINK**

Your heading says styrene to ABS but then you talk about Polyethelene so it's a little confusing?

regards Martin

[John Smith 47Participant @johnsmith47]

Posted by Martin Kyte on 12/11/2015 08:30:36:

What about

**LINK**

Your heading says styrene to ABS but then you talk about Polyethelene so it's a little confusing?

regards Martin

I have two different requirements running in parallel and I may have got my threads confused. Humble apologies.

Fwiw, on your link it says:
>>>
WELD-ON 2354 is formulated for bonding ABS, styrene (general purpose high impact), acrylics and poly-carbonates to themselves. It should not be used for joining dissimilar materials such as: ABS to styrene, ABS to acrylics, ABS to PVC or PVC to styrene.
>>>

[Martin KyteParticipant @martinkyte99762]

But it does say

WELD-ON® 1802 is formulated to bond acrylic (poly-methyl methacrylate), ABS, cellulose, acetate butyrate, rigid PVC, and polystyrene to themselves and to each other.

[Neil WyattModerator @neilwyatt]

Posted by John Smith 47 on 11/11/2015 19:12:04:

Posted by Neil Wyatt on 10/11/2015 20:16:54:

John,

Look up "Threaded Inserts and Other Hot Topics" by Mark Noel in MEW 225. All about how to perform the operation in the home workshop.

Neil

Do I have to be a subscriber to see this?
I searched online briefly but without success …

Thanks

Hello John,

I'm afraid yes, you need the back issue (225 & 226) or a digital sub to allow you to access the archive.

I'm looking at whether the article could be put on line, but it's rather long and complex, so it will need to be edited down, so this might not happen.

Neil

[John Smith 47Participant @johnsmith47]

Posted by Martin Kyte on 12/11/2015 12:03:29:

But it does say

WELD-ON® 1802 is formulated to bond acrylic (poly-methyl methacrylate), ABS, cellulose, acetate butyrate, rigid PVC, and polystyrene to themselves and to each other.

Good point – i.e. it flatly contradicts itself!

So far I have been using ABS and styrene in the same model as if there were both styrene, bonding with Tamiya Extra Thin or EMA Plastic Weld. Both seem to bond pretty well even though I have not formally tested the strength of the bonds. Fwiw, on balance I slightly prefer the Tamiya as it seems be slighly less "hot" as they say and seems to give slightly longer working times being as it evaporates a bit slower.

[Martin KyteParticipant @martinkyte99762]

Are there not two products 1820 and 2354 ?

Martin

[John Smith 47Participant @johnsmith47]

Posted by Martin Kyte on 12/11/2015 13:33:23:

Are there not two products 1820 and 2354 ?

Martin

At a quick skim the way the page is structured, that wasn't completely obvious but yes, you are correct. Apologies – I was skim reading too fast.

[John Smith 47Participant @johnsmith47]

Posted by Neil Wyatt on 12/11/2015 12:21:23:

Posted by John Smith 47 on 11/11/2015 19:12:04:

Posted by Neil Wyatt on 10/11/2015 20:16:54:

John,

Look up "Threaded Inserts and Other Hot Topics" by Mark Noel in MEW 225. All about how to perform the operation in the home workshop.

Neil

Do I have to be a subscriber to see this?
I searched online briefly but without success …

Thanks

Hello John,

I'm afraid yes, you need the back issue (225 & 226) or a digital sub to allow you to access the archive.

I'm looking at whether the article could be put on line, but it's rather long and complex, so it will need to be edited down, so this might not happen.

Neil

OK I'm tempted to go for a 3 month trial subscription – possibly of print and digital. Any idea where I can get a promo code from?

[Author]

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