Breaking news ...
My conjecture has been confirmed. The linear stabilizer that powers the fans must dissipate a lot of power. Due to the above it becames very hot, which will definitely shorten his life ...
By tapping it with your finger you can get very burned. I examined the high temperature of this toddler with a thermal imaging camera.
You can see the results below.
That's why I de-soldered a goldpin from the controller board (I think it's just a bad thing, and I do not know why it was designed) that there would be more space. Then I equipped the linear stabilizer with an additional heat sink.
The achieved effect is sensational. The radiator is also cooled by a nearby fan ;-)
More interesting photos on my website, I encourage interested parties to watch.
[attachment=0]termo-7812+.png[/attachment]
[attachment=1]PCB_M201_nowy_radiator.jpg[/attachment]
[attachment=3]PCB_M201_bez_goldpina.jpg[/attachment]
[attachment=2]PCB_M201_ma nowy_radiator.jpg[/attachment]
by the way, I will add that more and more often I think about designing an additional electronic system that would help control cooling by other fans (hot-end & controller board)
the system would have two independent channels for controlling the fan
channel first autonomous - rotational speed depends on the current temperature (maybe two sets of settings to choose from) for Hot-end.
second channel - rotary speed adjustable by potentiometer (for controller board)
important information on the end
the cooldown option does not work in the printer menu.
Generally, non-action is manifested by the lack of any reaction.
so I think this option does not work
kaktus' guide - fans - appendix
kaktus' guide - fans - appendix
- Attachments
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- the linear stabilizer shines like a bulb
- termo-7812+.png (208.06 KiB) Viewed 21324 times
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- heatsink recovered from the VGA card
- PCB_M201_nowy_radiator.jpg (306.13 KiB) Viewed 21324 times
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- voila ;-D
- PCB_M201_ma nowy_radiator.jpg (403.25 KiB) Viewed 21324 times
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- de-soldered unnecessary component
- PCB_M201_bez_goldpina.jpg (369.92 KiB) Viewed 21324 times
Re: kaktus' guide - fans - appendix
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
This "large" heat sink which I mounted fulfils its purpose.
At the time of measurement and earlier only one fan was in operation.
I wrote that the heat sink fulfills its purpose, but is it sufficient?
![Wink ;)](./images/smilies/icon_e_wink.gif)
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.
Re: kaktus' guide - fans - appendix
Hi
One more part of the guide is related to the fans.
kaktus' guide - fans - however, it was not the end
Greetings to all M201 users
![Wink ;)](./images/smilies/icon_e_wink.gif)
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
One more part of the guide is related to the fans.
kaktus' guide - fans - however, it was not the end
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Greetings to all M201 users
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
![Wink ;)](./images/smilies/icon_e_wink.gif)
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.