hobbes wrote:
Have you tried moulding them in metal from the casts? I have never tried moulding 3d printing plastic what sort of temperature can it take, it might be a way of resolving the snapping issue?
I only mention it as these are all fantastic!
Thanks. The snapping really isn't a big issue, it only happens when I zap the model with lots of UV. I do it to harden models that have not cured properly. UV or no UV it doesn't really help to bits that are just too thin to begin with. Printed resin can be softened with hot water and bent up to a point, then cooled in a fridge to set it. This sort of works, but the problem is that when heated again it tends to revert to it's original shape. I did this a couple of times with the robodragon wing and I didn't get it right the first time so I did it again, ending up with a bit wavy wing. I then added some putty and did some filing at it came out ok. Of course the right way of doing it would be to thicken the wing in the first place in the model before printing.
As to heating PLA or ABS I haven't tried it, my guess would be that if you have thin enough bit for it to work it probably didn't print properly to be of any use or it would snap with or without heating.