I wanted to see how the temperature spread in the build platform in the long quest for minimizing warp and had the chance to borrow a thermal camera. I´ve posted a few pictures in intervals using the "preheat" function.
I had the chance to borrow a good thermal imaging camera, so why not take the opportunity and take some platform pictures? I tried a few test surfaces with a know temperature before I started and it reported the correct temperature on those so I feel like I can trust the image values.
This is the starting position. The camera said 20.0 as
well as my fluke thermometer. Reported temperature by
UP software is: 15.9c, the difference can be explained
that it was stored in a colder room about an hour before.
2:30 after start, there's around 10c difference between
center and edges. Reported temperature by UP software
About 3 minutes after start. Reported temperature
by UP software is 63c.
A little more than 4 minutes after start, UP software reports
5 minutes after start. the UP software reports 86c.
Hottest spot is 75c and around 2cm from the edge
the temperature is almost 64c.
10 minutes after start, the UP software reports 103c
and the 10c difference between hotspot and edge
seems pretty consistent.
15 minutes after start, the UP software reports 105c and
there is not much difference after this point. it seems like
it's the maximum temp.
A view from the side showing the aluminium profile
where the heater element is.
So there seems to be around 10 degrees celsius difference between center and around the edges, or at least a few cm in from the edges. I'm not sure if this a problem or not?
I have to put on my thinking hat and grab a beer...