>>7144511>>7144514Solvent cement anon here
I've done ball socket repairs, but of all the ones I've done friction fit joints like ball sockets are the least likely to take. I personally use Plastruct Bondene, but any solvent cement for ABS should work (Methylene chloride or methyl ethyl ketone based.) I know Tamiya makes a popular cement as well. You can also buy straight MEK from the hardware store by the quart, but I think that might be changing. I know lowes pulled it recently.
Tips: It will be super watery! This is normal. You hold the pieces together first and then paint it over, allowing it to soak in.
Don't worry about gluing yourself to the part, it only works on plastics.
Don't overdo it! A tiny amount should do the trick. Any more can melt or weaken the plastic unnecessarily. If your brush is dripping it's probably too much.
Addendum to that, don't fuck up. The plastic will get weaker each time you have to try again.
It will work best on clean breaks. The sort where parts seem to fit perfectly back together.
It sets within seconds and it may be tempting to try to put it back together in a few hours, but let it cure for the whole 24 or maybe even longer. Pressure should be kept on for at least 10 minutes to ensure a good set in my experience.
Of figures I've done it on for ball sockets I've had mixed results. The Universe motorcycle minicon's hip and FE Cliffjumper's neck held, HFTD Brimstone's shoulders and ROTF Scalpel's hip sockets did not.