Electronics > Projects, Designs, and Technical Stuff
power supply enclosure
beanflying:
--- Quote from: exe on May 03, 2019, 06:50:50 am ---When doing temperature measurements be sure to wait enough time for temperature to set. It's recommended to wait at least 15 minutes to do final measurements (but the temperature should be monitored all the time to avoid overheating). Also room temperature plays a big role. 18C in the winter is not the same as 33C during hot summer.
If possible, I'd add some thermal protection circuitry.
--- End quote ---
Giggle we hit 45C here this Summer and a bunch over 40C ;)
On topic some of the power bricks I own including 'branded' ones do get what I consider over hot I have substituted one on a Netgear Storage Box. The best solution is always Airflow over the power bits on any supply be it natural or fan forced..
coppercone2:
don't make it like dave jones contactor on the roof that just broke
Emil:
--- Quote from: exe on April 27, 2019, 07:20:40 am ---Why not anneal PLA: it shrinks :(. I didn't do it myself, but I watched videos, dimensional accuracy suffers a lot. It also shrinks differently in different axes.
--- End quote ---
Dimensional change is different along the Z-axis compared to X and Y.
The dimensional change is very consistant, so you can print a test piece, measure it and then scale future prints accordingly in the slicer.
exe:
--- Quote from: Emil on June 03, 2019, 10:28:06 am ---The dimensional change is very consistant, so you can print a test piece, measure it and then scale future prints accordingly in the slicer.
--- End quote ---
I never tried this myself, but I guess different filaments behave differently. Parts also tend to deform. Also changing printing orientation will need adjustments... I mean, it all sound quite a bit of trouble to me. I think I'll try other plastics before going this way...
Anyway, do you have experience with annealing?
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