Showing posts with label ABS glass. Show all posts
Showing posts with label ABS glass. Show all posts

Thursday 16 December 2010

Crème brûlée

This is what happened when the thermocouple fell off my heated bed: -


It happened while both myself and my wife were at work so the machine finished the build. When I came home the room stank of fumes.

The bed temperature will have been limited to about 170°C by the thermal cut out I have in series with the heater for safety. Since it was making a bed of six and it went wrong about 1/3 of the way through the build, they will have been cooking for about 4 hours.



Unsurprisingly the bottom of the object shrank and went brown. What was surprising was that the bottom layer became transparent and glass like. So glass like that I cut my finger on it. The meniscus edge was razor sharp. It seems to have softened over time though, this happened a few weeks ago.

Perhaps it might be a useful process if you want a transparent window on the base of an object. You could lay down a single layer and then cook it for a few hours at 170°C and then deposit the rest of the object on top of it.