Time to dehydrate filament?  

RE: Time to dehydrate filament?

The need to dry the full spool and not only the outer coils is yet another argument against those solid-sided filament spools, especially now that so many manufacturers are able to do tight windings. It's very difficult to dry the center of a spool. This might be a real consideration for nylons and other hygroscopic filaments. I like vented spool side to view remaining filament, but they also aid drying. 

RE: Time to dehydrate filament?

I'm probably just going to ash-can the rest of that roll.  It's not that much as it's the 'runt' left over from what would comfortably fit on two smaller spools when I respooled that obnoxiously-large 2KG spool and I also have a good amount of that filament on a good spool in one of the dry boxes.

If anyone wants to propose any further experiments with it I'm game, but I do not envision those cracks healing with any further dehydration attempts.  It's obvious from a close inspection that they are not just superficial.

RE: Time to dehydrate filament?

Another option is to just run the filament out of the dryer, (if you have a means by which to do so) as the filament is exposed it begins to dry more rapidly and the strand as its leaving receives a nice pre-warming. doing this also has other added benefits.

My condolences for your loss,

Swiss_Cheese

RE: Time to dehydrate filament?

Thanks guys, 

I let it dehydrate overnight and a small test print worked just fine. 

LOL, I didn't think that this would start this much of a discussion. 

RE: Time to dehydrate filament?

I have  a fixdry spool dryer.  It blasts the hot air through the center core of the spool.  Maybe this type of design overcomes the problem of the inner filament windings not getting dried?

RE: Time to dehydrate filament?

Curious about a halogen bulb as they can create a lot of heat, maybe too much for this application…I have yet to build a drying box but what you have made is quite close to what I have in mind. 

RE: Time to dehydrate filament?

I made a makeshift dehydrator out of one of my dryboxes shortly before we got the Ninja Cooker, which is what I regularly use to dry filament.

Basically an incandescent light bulb (you can still get them here in the States if you look around, probably more common elsewhere) which warms the interior of the drybox to somewhat over 100F (~38C) but I do not use it anymore since the Ninja Cooker is more convenient.  On my do-it list is to remove the bulb and socket for more room in the box.