Makerbot Thermographic Porn!

[Gav]

Hey All,

We were using a thermographic camera at the Robots and Dinosaurs
hackspace the other day, trying to figure out where the hottest spot
in the microwave is.


When we'd finished we got some good shots of the makerbot heated build
platform and the extruder controller.
Pics and info here:
https://sites.google.com/site/mechatronicsguy/coolthingoftheweek/microwave-hot-spots

Cheers,
Gavin.

[Rob Giseburt]

Thank you for that! I've often wondered about how well the HBP
distributes the heat...

-Rob

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[Jordan Miller]

w0w thats awesome! is there a way to decrease the camera exposure time to increase the max temp reading?

thank you for doing this.

jordan

[JohnA.]

I wasn't at all surprised by the MOSFET temps. Was the HBP pictured
driven from a relay or directly from the EC?


JohnA.

On Aug 8, 10:26 am, Jordan Miller <jrdn...@gmail.com> wrote:
> w0w thats awesome! is there a way to decrease the camera exposure time to increase the max temp reading?
>
> thank you for doing this.
>
> jordan
>

> On Aug 8, 2010, at 6:07 AM, Gav <the.mechatronics....@gmail.com> wrote:
>
>
>
> > Hey All,
>
> > We were using a thermographic camera at the Robots and Dinosaurs
> > hackspace the other day, trying to figure out where the hottest spot
> > in the microwave is.
>
> > When we'd finished we got some good shots of the makerbot heated build
> > platform and the extruder controller.
> > Pics and info here:

> >https://sites.google.com/site/mechatronicsguy/coolthingoftheweek/micr...

[Jordan Miller]

I think if the mosfets are hot it must be extruder controller driven (because relay board is supposed to obviate mosfet overheating).

jordan

[Gav]

Hey all,

Yep, the HBP was driven from the mosfet, not from a separate relay
board. And I'm not sure the high temp bothers me, I'll just leave
it :)

The exposure time on the camera doesn't need to be changed (it doesn't
have a shutter in the same way as a conventional camera does), just
the scaling of the image. The max temp shown in the pics is reliable,
but I forgot to push the 'auto-set' button to change the colour
representation before shooting, so it looks a little saturated. I
should be able to image up to 500*C before running into camera
problems.

Cheers,
Gavin.

On Aug 9, 11:55 am, Jordan Miller <jrdn...@gmail.com> wrote:
> I think if the mosfets are hot it must be extruder controller driven (because relay board is supposed to obviate mosfet overheating).
>
> jordan
>

[peterr]

i have some plastruder thermal images taken from a mendel (that has
printing problems however).
take the images for what they are, don't use them to analyze or
theorize around.
The camera was also not fully calibrated, so expect around 5°-10°
variance.

http://www.flickr.com/photos/49387085@N07/sets/72157624694318784/