[OpenSCAD] Joining parts

Dan Shriver tabbydan at gmail.com
Fri Jul 19 10:45:52 EDT 2019


Dichloromethane definitely is carcinogenic.  If you want to make a
permanent join on PLA (which I don't hence I was asking for friction fit
snaps) I'd recommend (aside from adhesives) maybe trying to heat or
ultrasonic weld it.

On Fri, Jul 19, 2019 at 10:40 AM Bryan Lee <leebc11 at acm.org> wrote:

> Thus arnholm at arnholm.org hast written on Fri, Jul 19, 2019 at 09:51:43AM
> +0200, and, according to prophecy, it shall come to pass that:
>
> > I think that is a very practical and sensible approach, nice idea. What
> kind
> > of glue do you use for PLA joined this way?
>
> I was just reading last night that:
>         "PLA is soluble in solvents, hot benzene, tetrahydrofuran, and
> dioxane."
> and     "PLLA can be solvent welded using dichloromethane."
> [ https://en.wikipedia.org/wiki/Polylactic_acid#Materials_properties ]
>
> Read the Material Safety Data Sheets on those first, as they may be
> carcinogenic and pose other hazards.
>
> Dichloromethane "is also used extensively by model building hobbyists for
> joining plastic components together. It is commonly referred to as
> "Di-clo." "  So it's use for gluing plastic seems fairly common.
> [ https://en.wikipedia.org/wiki/Dichloromethane ]
>
> Other than that, I've used Cyanoacrylate/superglue to glue PLA.
>
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