E2 - Turn off chamber fan

2JP
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E2 - Turn off chamber fan

Postby 2JP » Sun Jun 14, 2020 6:02 pm

Is it possible to turn off chamber fan in printer settings?

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Vicky@Raise3D
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Re: E2 - Turn off chamber fan

Postby Vicky@Raise3D » Mon Jun 15, 2020 7:56 pm

You mean the filter fan or PSU fan?

2JP
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Re: E2 - Turn off chamber fan

Postby 2JP » Thu Jun 18, 2020 9:36 am

The filter fan. We want to increase build volume temperature.

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Vicky@Raise3D
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Re: E2 - Turn off chamber fan

Postby Vicky@Raise3D » Thu Jun 18, 2020 9:28 pm

You can have it off when the printer is idle on touchscreen. Not sure whether it is what you are looking for not it.

leonhart8888
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Re: E2 - Turn off chamber fan

Postby leonhart8888 » Thu Jul 16, 2020 4:30 pm

I think OP was asking if you could disable the back filter fan during printing so that the chamber temperature increases and reduces warping of filaments like ABS.

I'm also curious if this is possible...or if we have to physically disconnect the fan.

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Vicky@Raise3D
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Re: E2 - Turn off chamber fan

Postby Vicky@Raise3D » Fri Jul 17, 2020 1:40 am

At this time there is no way to dsiable the filter fan while the machine is printing. Also, there should be no concern with the filter fan pulling enough air out of the chamber to cool down the prints. The machine is fully encloused so as long as you are printing at the correct temperatures there should be no issues. There is a connector that can be unpluged if the fan ever need to be swapped, however we do not recomend unplugging the fan while printing.

leonhart8888
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Re: E2 - Turn off chamber fan

Postby leonhart8888 » Sun Jul 19, 2020 6:38 pm

Thanks Vicki. I may unplug mine to test and see if it improves things and reduces warping a bit for ABS and Nylon.

The axial fan does seem to push out quite a bit of airflow. These fans typically don't work well in high static pressure situations, which means that if it's moving air out, it's definitely pulling air in.

leonhart8888
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Re: E2 - Turn off chamber fan

Postby leonhart8888 » Sun Sep 27, 2020 7:24 pm

Just an update - I have unplugged my fan since I mostly print with ABS & PC with great success.

Bikeracer
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Re: E2 - Turn off chamber fan

Postby Bikeracer » Mon Sep 28, 2020 7:08 am

leonhart8888 wrote:The axial fan does seem to push out quite a bit of airflow. These fans typically don't work well in high static pressure situations, which means that if it's moving air out, it's definitely pulling air in.


I am only printing PLA at the moment and after removing the Hepa filter I have the fan running all the time, but I keep the lid and door closed. I just assumed it would be better to have fresh air sucked in via the holes in the bottom of the filament compartment and constantly moving across the print than just relying on convection with the top open and the fan pulling the warm air back down into the chamber.

So if as you say about fans pulling air in from a static pressure environment it seems a better way for me to print PLA.

So if anyone can recommend a quieter direct replacement fan unit it would be appreciated.

neslekkim
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Re: E2 - Turn off chamber fan

Postby neslekkim » Thu Oct 01, 2020 10:59 am

read this thread, solution is on page 3, they have connected the fan to wrong connector.

gianni
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Re: E2 - Turn off chamber fan

Postby gianni » Tue Feb 08, 2022 6:58 pm

leonhart8888 wrote:Thanks Vicki. I may unplug mine to test and see if it improves things and reduces warping a bit for ABS and Nylon.

The axial fan does seem to push out quite a bit of airflow. These fans typically don't work well in high static pressure situations, which means that if it's moving air out, it's definitely pulling air in.


Greetings,

I'm wrong but does the hepa fan posh or pull ?, I'm asking because my E2 takes the air from outside enclosure and push it against the filter, in that way if I put a piece of paper outside in front of the fan that is sucked

Thanks
Gianni

Raise3D_User1
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Re: E2 - Turn off chamber fan

Postby Raise3D_User1 » Wed Feb 09, 2022 2:56 am

gianni wrote:
leonhart8888 wrote:Thanks Vicki. I may unplug mine to test and see if it improves things and reduces warping a bit for ABS and Nylon.

The axial fan does seem to push out quite a bit of airflow. These fans typically don't work well in high static pressure situations, which means that if it's moving air out, it's definitely pulling air in.


Greetings,

I'm wrong but does the hepa fan posh or pull ?, I'm asking because my E2 takes the air from outside enclosure and push it against the filter, in that way if I put a piece of paper outside in front of the fan that is sucked

Thanks
Gianni


The fan is supposed to blow the air from the chamber through the HEPA filter to the outside. If yours is SUCKING air from the outside, your fan is installed or wired backwards.

It wouldn't be the first. There was one here a few weeks ago with the same issue.

gianni
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Re: E2 - Turn off chamber fan

Postby gianni » Wed Feb 09, 2022 6:48 pm

Raise3D_User1 wrote:
gianni wrote:
leonhart8888 wrote:Thanks Vicki. I may unplug mine to test and see if it improves things and reduces warping a bit for ABS and Nylon.

The axial fan does seem to push out quite a bit of airflow. These fans typically don't work well in high static pressure situations, which means that if it's moving air out, it's definitely pulling air in.


Greetings,

I'm wrong but does the hepa fan posh or pull ?, I'm asking because my E2 takes the air from outside enclosure and push it against the filter, in that way if I put a piece of paper outside in front of the fan that is sucked

Thanks
Gianni


The fan is supposed to blow the air from the chamber through the HEPA filter to the outside. If yours is SUCKING air from the outside, your fan is installed or wired backwards.

It wouldn't be the first. There was one here a few weeks ago with the same issue.



Many thanks,
that was exactly my doubt, indeed that is supposed to be the need for the hepa filter.
I hope it will not be to complicated to fix.

Thanks again
Gianni

Proschi3d
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Re: E2 - Turn off chamber fan

Postby Proschi3d » Thu Feb 10, 2022 5:42 am

Hi there,
it must also be possible to switch off the fan via a gcode.
i will try it at the weekend.
You can also stop it in config g on the motionboard's sim card.
Raise 3D E2, Prusa i 3 Mk3s Mmus2

https://www.instagram.com/proschi3d/

gianni
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Re: E2 - Turn off chamber fan

Postby gianni » Thu Feb 10, 2022 7:50 pm

many thanks for your help,

as didn't want to eliminate the fan feature I took the time to understand what was going on, well in my case I found the following evidences:

1- the wiring color is crossed and it looks wrong at the fan side connector. I removed the fan assy and switch the wires to have it right , I did it at the fan-side as the cabinet harness is not easy to undo, of course I should have switched the cabinet side but the space to do it was limited.

By doing this I notice that the fan did not turn anymore , it was evident that the colors were crossed but the power polarity was right.

For that I put the wires back (crossed black/red but right polarity to the fan).

2- As I put the fan back (without ULPA filter) suddenly I realized that the air flow was right (pushing air from inside out the cabinet).

3- The fan assembly with the ULPA filter in place behave pulling the air in instead of pushing it out.

Basically it looks like there are two issues, one is about crossed colors at the fan connector which is only annoying for service but it brings the right polarity to the fan.
Second issue is about the airflow being blocked too much by the ULPA fitter, as consequence the air is sucked in instead of out. I guess some update will be needed.

Thanks a lot
Gianni

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Ryan@Raise3D
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Re: E2 - Turn off chamber fan

Postby Ryan@Raise3D » Fri Feb 11, 2022 9:04 pm

Thank you for doing this much due diligence on the issue you are having and I am going to send your findings over to our development team to get their opinion on the issue.

Timo
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Re: E2 - Turn off chamber fan

Postby Timo » Tue Aug 09, 2022 3:05 pm

So any update in this?. i notice also that my fan suck air when i tested it whit paper. What is correct way to go from here?.

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Ryan@Raise3D
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Re: E2 - Turn off chamber fan

Postby Ryan@Raise3D » Thu Aug 18, 2022 12:31 am

Unfortunately I do not have an update for this and the next update I would have would be an update to the Raise touch firmware for the E2. I am sorry that you are having this issue.


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