Dehumidifying Your Filament
Dehumidifying Your Filament
Here's an experiment to see how well rice works as a filament dehumidifier (clicky for more dots):
I put 200 g of rice in a bowl inside a small safe (about 1 ft³) with a gasketed door. During the next 11 days, the humidity rose toward the ambient 52 to 54 %RH maintained by the basement dehumidifier. Afterward, the rice still weighed exactly 200 g, so it hadn't absorbed or released any water vapor.
When I replaced the rice with a bag of silica gel, the humidity abruptly dropped below the data logger's 15% lower limit. The spike just after the drop shows where I opened the door to check the humidity indicator telltale.
Conclusion: rice may fill your tummy and break up clumps in your salt shaker, but it won't do anything for your filament.
Jules made me do it:
viewtopic.php?f=6&t=2837
I put 200 g of rice in a bowl inside a small safe (about 1 ft³) with a gasketed door. During the next 11 days, the humidity rose toward the ambient 52 to 54 %RH maintained by the basement dehumidifier. Afterward, the rice still weighed exactly 200 g, so it hadn't absorbed or released any water vapor.
When I replaced the rice with a bag of silica gel, the humidity abruptly dropped below the data logger's 15% lower limit. The spike just after the drop shows where I opened the door to check the humidity indicator telltale.
Conclusion: rice may fill your tummy and break up clumps in your salt shaker, but it won't do anything for your filament.
Jules made me do it:
viewtopic.php?f=6&t=2837
Re: Dehumidifying Your Filament
Dude! I didn't realize you'd actually done it!
I ran my own little rice experiment as well....guess what?
If you leave bags of rice at room temperature with little holes poked into them, without freezing them first, you wind up with............
.
.
.
.
.
wait for it........
.
.
.
.
buckets full of weevils.
We have reached perfect accord on the rice.
I ran my own little rice experiment as well....guess what?
If you leave bags of rice at room temperature with little holes poked into them, without freezing them first, you wind up with............
.
.
.
.
.
wait for it........
.
.
.
.
buckets full of weevils.
We have reached perfect accord on the rice.
Re: Dehumidifying Your Filament
Toss some oxygen absorbers in those buckets:Jules wrote:buckets full of weevils
https://en.wikipedia.org/wiki/Oxygen_scavenger
Slows the little buggers down enough that you can eat your way ahead of 'em... [evil grin]
Re: Dehumidifying Your Filament
Didn't put them in the filament buckets 'cause I'm in and out of them too frequently. One of the buckets that had not been opened in a while, all the little buggers were quite dead, without even having to use one.
So if you were in a real bind for oxygen scavengers, you could just toss a bag of rice in there, let them hatch and suck up all the oxygen.
Poor man's oxygen scavenger.
(If you can get past the gross-out factor. )
So if you were in a real bind for oxygen scavengers, you could just toss a bag of rice in there, let them hatch and suck up all the oxygen.
Poor man's oxygen scavenger.
(If you can get past the gross-out factor. )
Re: Dehumidifying Your Filament
Is this just a coincidence, or was there some debunking of the rice myth that I missed?
http://xkcd.com/1598/
http://xkcd.com/1598/
Re: Dehumidifying Your Filament
When every one of us does our part, that's how we make progress!Tim wrote:debunking of the rice myth
- Mark the Greater
- Posts: 124
- Joined: Mon Jul 27, 2015 8:27 pm
- Location: Brookfield, IL
Re: Dehumidifying Your Filament
If rice absorbed water it would "cook" if you left a bowl out on a humid day. It don't, so it don't!
Nice debunking everyone! Well, everyone except Jules since all she did was feed bugs. Nice bug feeding Jules!
Nice debunking everyone! Well, everyone except Jules since all she did was feed bugs. Nice bug feeding Jules!
Love Always,
MtG
MtG
Re: Dehumidifying Your Filament
(this is me sticking my tongue out)Mark the Greater wrote:If rice absorbed water it would "cook" if you left a bowl out on a humid day. It don't, so it don't!
Nice debunking everyone! Well, everyone except Jules since all she did was feed bugs. Nice bug feeding Jules!
Re: Dehumidifying Your Filament
I still don't understand why I can't get below 25% measured on a DHT22 in a sealed bucket with a ton of silica desiccant and Damp Rid to boot. https://thingspeak.com/channels/14270
Maybe the library code is incorrect.
Maybe the library code is incorrect.