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Archive for October 8th, 2011

Thing-O-Matic: Delamination

ABS plastic shrinks as it cools and large objects with thin sections tend to delaminate, as seen in the Barbie Pistol and a few other objects. The box for the GPS+voice interface is four threads thick and 35 mm tall, which provided enough energy to rip the side apart:

Box wall delamination

Box wall delamination

Solvent glue and a clamp shoved it back together again:

Clamping delamination

Clamping delamination

This one was extruded at 190 °C, which works fine for small objects and isn’t quite enough to fuse something like this. I’ll crank it up to 210 °C for the next iteration to see if that improves the result.

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