[Noisebridge-discuss] Makerbot: Making

[Shamrock Man]

Most common ABS plastics are safe for food use. I would not use it for
anything above 140°F. The general rule of thumb is that if you cant keep
your finger in/on it for 5-10 seconds, its too hot.
Do not use it for boiling water/near boiling water as the strength of the
ABS will be very minimal.

On Mon, Aug 10, 2009 at 2:08 PM, Marnia Johnston <marnia at gmail.com> wrote:

>
>
> On Sun, Aug 9, 2009 at 7:23 AM, Jonathan Lassoff <jof at thejof.com> wrote:
>
>> Excerpts from Sai Emrys's message of Sun Aug 09 07:12:14 -0700 2009:
>> > That's awesome.
>> >
>> > Are the tolerances good enough that it could be made functional? (i.e.
>> > hollow spout and body, recession that fits lid)
>>
>> Eh.. not as function as you describe.
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>
>
>>
>> Not exactly food safe (can't hold water; would the boiling water remelt
>> the plastic?). I'm a ceramic artist and we use these 3D printers to print
>> out a 'pattern' that we then use to make a slip cast mold. I can then use
>> the mold to make ceramic tea pots.
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>
>
>>
>> I'm still not sure how to best get it laid down to start. It's almost as
>> if the plastic doesn't stay hot enough or something.
>> As it comes out, I'm having a hard time to get it to start sticking to
>> the stage or to the layer underneath it, and it will roll up under the
>> head and make a mess.
>>
>> > I'm impressed that it's able to do bits where there isn't underlying
>> > material (like the handle). How do you do that? The only way I can
>> > think of offhand is by using something underneath that's then taken
>> > out - either in some alternate material that is easy to remove, or a
>> > little snappable post like you see holding the pieces in model kits to
>> > their container.
>>
>> There is some filling mesh-like material. See here:
>> http://www.flickr.com/photos/thejof/3804170316/
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>
>
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