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nikolai.r
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Re: Electronics in or out the Enclosure?

Wed Feb 21, 2018 6:23 pm

This is something you have to try. To heat up the whole thing with MK2/MK3 with 100C heat bed over 50C should be pretty hard.
Just keep in mind that you could get a heat creep with some filaments if it's too hot in your enclosure. Maybe think about some kind of regulated air ventilation in case you need it.
I had no issues with ABS but with high temp PLA (245C).

keith.m10
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Re: Electronics in or out the Enclosure?

Wed Feb 21, 2018 10:12 pm

I know the old version of the Mini Rambo board with the older driver chips had thermal protection that would start dropping steps if they got too hot(reduced torque drive). I am not sure what the new driver chips have for thermal settings. But if you start seeing dropped steps you will need to cool the electronics.

stephan.e
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Re: Electronics in or out the Enclosure?

Thu Feb 22, 2018 6:45 pm

OK thank you for the help. In the moment I am thinking of building the enclosure without Styrofoam and let the electronics inside. I hope that's enough for ABS.

ben.c5
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Re: Electronics in or out the Enclosure?

Tue Mar 13, 2018 3:08 pm

Wires are not long enough to run stock cable outside of frame

sergey.s4
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Re: Electronics in or out the Enclosure?

Tue Mar 13, 2018 3:45 pm

Mk3 tmc2130 drivers are temp protected.
Not sure about bed and extruder drivers.

For abs printing, a simple passive inclosure is enough. I dont think you can do any damage with passive enclosure.
With heated enclosure you will have problems with electronics and extroder cooling, will need watercooling.

I see some discoloration on my extruder printed parts, probably due to heat. Will be printing all parts with more heat resistant matterials.

stephan.e
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Re: Electronics in or out the Enclosure?

Tue Mar 13, 2018 5:32 pm

OK, thanks!
Are at least the flat cables of the display long enough to put it outside?

stephan.e
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Re: Electronics in or out the Enclosure?

Wed Mar 14, 2018 8:09 am

@Sergey.S4 do you have a Mk3 or an older model? Of which material will you print the more heat resistant parts? Isn't PETG enough?
How warm is your enclosure?

I only want to build a passive enclosure, but instead of thin acrylic walls I will use Styrofoam.

andrew.w35
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Re: Electronics in or out the Enclosure?

Fri Mar 16, 2018 12:16 am

I built a frame out of wood and used foam panels for 3 side. I will be putting a plexiglass door on the front. I was going to see how hot it got... (still waiting for my MK3)... before I decide to figure out some either passive top to bottom venting along the PSU and Einsy board... or fan driven.

A conversation with support said the electronics should be kept at no more than 40C\104F but i'm guessing they are being conservative.
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enclosureB.jpg (78.05 KiB) Viewed 149 times

stephan.e
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Re: Electronics in or out the Enclosure?

Fri Mar 16, 2018 6:54 am

Hey Andrew,
nice enclosure! I will try it like you did, but my frame will be an Ikea-LACK-table.
I hope I can handle the temperature.

When did you order your Mk3? Maybe you get yours before I receive my own. So maybe I can profit from your experience.

sergey.s4
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Re: Electronics in or out the Enclosure?

Fri Mar 16, 2018 3:13 pm

stephan.e wrote:
Wed Mar 14, 2018 8:09 am
@Sergey.S4 do you have a Mk3 or an older model? Of which material will you print the more heat resistant parts? Isn't PETG enough?
How warm is your enclosure?

I only want to build a passive enclosure, but instead of thin acrylic walls I will use Styrofoam.
using mk2s .
i didn't print the extruder in different material yet , as it is still working , which is good enough for me .
if i'll need to print it in different material , i would use one of the fiber filled nylons or polycarbonate .
i might be going full water cooled extruder in the future to print at up to 400c with heated chamber (to print pie - ultem , ppsu and maybe peek)

i've heard of new filament from TreeD filaments (one of my favorite for strong filaments) that can be used at 150c with no issues , and with great mechanical strength . if that's true , i might delay my watercooling plans :)

i use glass and polycarbonate panels for my passive enclosure . i didn't measure the temp inside , but i dont think it can go any higher then 60c .currently i'm rebuilding the enclosure for active heating by using some unused build plates that i have . 2 heated build plates on the sides , and one on top should make the enclosure pretty hot .heated build plates are not the most effective heaters , but hey , that's what i got .

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