[OpenSCAD] Joining parts

David Gustavson dbg at SCIzzL.com
Fri Jul 19 13:22:42 EDT 2019


E6000 is not an epoxy. It's a tough, flexible, glue.

-- 
 David Gustavson
 dbg at SCIzzL.com



On Fri, Jul 19, 2019, at 10:07 AM, Dan Shriver wrote:
> E6000 seems kind of overkill since it is a specialized epoxy for high strength joins. It also looks like it uses a chlorinated solvent so it has the same health downside as a dichloromethane solvent weld.
> 
> nop_head's suggestion of ethyl acetate for a solvent weld (with low health risk); or standard cyanoacrylate (superglue) or epoxy would probably be less expensive.
> 
> On Fri, Jul 19, 2019 at 12:23 PM Hugo Jackson <hugo at apres.net> wrote:
>> E6000 (labelled as an automotive & industrial) glue was recently recommended to me for PLA. It’s a gel like substance and It comes in a 59ml grey coloured tube and according to the testing conducted by my friend PLA parts will break before the bond does. I’ve not done any testing but I have used it and I’m finding it great. Only downside is that it requires a 24 hr. cure. 
>> 
>>  > On Jul 19, 2019, at 9:07 AM, Alex Gibson <alex at alexgibson.net> wrote:
>>  > 
>>  > I agree the gel superglue is the best for surfaces with good contact.
>>  > 
>>  > For joining parts by textured sides, I would recommend the original 'Gorilla
>>  > glue'. It expands slightly into the texture and makes a less brittle joint.
>>  > 
>>  > Another option is I use a '3d printing pen' as a welding device. For a
>>  > really solid join, if you can get the internal access to the part, make a
>>  > grid of holes on the mating surface and 'plug weld' the two parts together
>>  > at those points.
>>  > 
>>  > You can add a couple of studs to the other side which line up with the holes
>>  > for a fantastic alignment - or just a matching hole and put a bolt through
>>  > them while you do the other welds.
>>  > 
>>  > This is a description of the process in metal but the actions are exactly
>>  > the same, I just use a pastel pink '3Doodler' clone!
>>  > https://www.mig-welding.co.uk/plug-weld.htm
>>  > 
>>  > Cheers,
>>  > 
>>  > Alex Gibson
>>  > 
>>  > 
>>  > admg consulting
>>  > 
>>  > edumaker limited
>>  > 
>>  > . Project management
>>  > . Operations & Process improvement 
>>  > . 3D Printing
>>  > 
>>  > -----Original Message-----
>>  > From: Discuss [mailto:discuss-bounces at lists.openscad.org] On Behalf Of Bryan
>>  > Lee
>>  > Sent: 19 July 2019 16:25
>>  > To: OpenSCAD general discussion
>>  > Subject: Re: [OpenSCAD] Joining parts
>>  > 
>>  > I was just recommended this:
>>  > https://smile.amazon.com/dp/B0778LB4RX
>>  > 
>>  > 
>>  > Thus arnholm at arnholm.org hast written on Fri, Jul 19, 2019 at 05:15:13PM
>>  > +0200, and, according to prophecy, it shall come to pass that:
>>  >> On 2019-07-19 16:40, Bryan Lee wrote:
>>  >>> Other than that, I've used Cyanoacrylate/superglue to glue PLA.
>>  >> 
>>  >> Thanks for the replies. I was mostly interested in something easily
>>  >> available and superglue fits the bill.
>>  >> 
>>  >> Carsten Arnholm
>>  > 
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>>  > 
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