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csava

DIY Filament Dehydrator Oven

by csava Jul 15, 2017
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dumb question : what is the colorful box? u have not mentioned what is inside it or how you made it

it is a tin box for cookies. it came as a set of three pieces of different diameters one inside the other. The one i used was the largest so i could fit the heatbed inside.

Any idea how much it costs to get everything?

as i had all parts laying around i didn't bother to calculate the price.

i like the idea i actually had an idea similar to this earlier today but it is quite different. i have my printer in an enclosure and thought why not use the heated bed to dry it out :) anyway how long would you leave pla to dry ? im currently trying 1 hour with the spool on the bed (glass on the bed under it) i think that would be enough but i am not sure i dont fancy leaving it on for hours.

it depends on how humid is the filament. i don't have a specific time. i just try to print and see if it is good enough or if it needs more dehydration. pla is less prone to water absorption then nylon which can get unusable directly when printing for just a few hours.

Where does the moist / water the filamnet includes go to?
Shouldn't It escape the box?
Regarding the how does it work aspect the video tells not anything at all.
Why showing off a box 3:30 min doing nothing more than waiting for a beep?
I was told heating up to much (60 deg celsius is a bad idea)
Do you have included a temp monitor?
Where is the fan I'm missing
It should circulate the warmed up air from the bottom upwards through vents?

I didn't show this in the video but i keep the lid of the box semi open so it can naturally vent air so no fan but it can certainly be added as the board is capable of controlling a fan via g-code. I dry my abs and nylon at 100 degrees C and I have no meltdown - just drying faster - of course i keep the spool at a distance of 10 mm using a honeycomb pattern filled circle. The temperature monitoring system is actually built in by using a termistor and PID controller from the firmware - that way i keep it nice and steady with no fluctuations over time. It is by no means a professional solution, merely a tinkerer solution. Btw - i constructed and have in operation a second unit and both are working just fine.

I like the idea of using an old heated to dehydrate filaments. How well does it work? how much time do,say, half a kg of filament take?

it works well. it really depends on the filament. pla/abs/pet need less time. nylon on the other hand needs 12h or more.