RE: PC printing on Core One
Farenheit 450 ! That's Ray Bradbury territory. 😋
I prefer to use dedicated driers, even if I agree that they're overpriced. Ovens usually aren't able to keep a very accurate temperature and hot air management, so to speak, isn't as good as a well designed filament drier.
RE: PC printing on Core One
Farenheit 450 ! That's Ray Bradbury territory. 😋
I prefer to use dedicated driers, even if I agree that they're overpriced. Ovens usually aren't able to keep a very accurate temperature and hot air management, so to speak, isn't as good as a well designed filament drier.
What I wonder about with gas ovens is: part of the combustion products is H2O... does that have an impact on lower temperature drying in said over?
RE:
Farenheit 450 ! That's Ray Bradbury territory. 😋
I prefer to use dedicated driers, even if I agree that they're overpriced. Ovens usually aren't able to keep a very accurate temperature and hot air management, so to speak, isn't as good as a well designed filament drier.
What I wonder about with gas ovens is: part of the combustion products is H2O... does that have an impact on lower temperature drying in said over?
I'm thinking of picking up one of these as an "annealer oven" CHEFMAN Multifunctional Digital Air Fryer+ Rotisserie, Dehydrator, Convection Oven Can't beat $79 plus it has a rotisserie feature 😉
RE: PC printing on Core One
This one looks better: Cuisinart Air Fryer, 4.5-Quart Basket Fryer and the basket is exactly the size of a filament spool. Thinking of added a vertical spool and a Bowden coupler to it... Certainly cheaper than the SUNLU E2
RE: PC printing on Core One
H-O-L-Y C-R-A-P! Air Fryer.... you're an evil genius! <Golf Clap> Damn...
RE: PC printing on Core One
H-O-L-Y C-R-A-P! Air Fryer.... you're an evil genius! <Golf Clap> Damn...
Yup. And the first roll I will test/sacrifice is my IEMAI PC-CF. If it accidentally turns it into molten slag, then I'll know it didn't work but then no loss...
Oh, and they have a "2 spool" version as well: https://www.amazon.com/dp/B0FNT5M8VS?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
RE: PC printing on Core One
"That's not filament drier it's a air frier!"
Said like "That's no moon. It's a space station...!"
RE: PC printing on Core One
Just be careful, this is why ovens are a bad idea for filament drying, they are very likely to have quite a variance in temperature. eg you set it to 80 degrees and that thing could be swinging between 70 and 90, giving an average of 80 degrees. I'd be extremely cautious of the cheap ones.
If you do get one then definitely give it a test run with a wireless temp probe in it first so you can see if the variation is substantial.
RE: PC printing on Core One
Just be careful, this is why ovens are a bad idea for filament drying, they are very likely to have quite a variance in temperature. eg you set it to 80 degrees and that thing could be swinging between 70 and 90, giving an average of 80 degrees. I'd be extremely cautious of the cheap ones.
If you do get one then definitely give it a test run with a wireless temp probe in it first so you can see if the variation is substantial.
I have a Creality SpacePi X4 already. In my case I'll be using it for annealing printed parts. If the temp holds then I'll use it for PA.
RE:
Thought I'd share this. Side by side comparison of Prusa PC-CF and IEMAI PC-CF in this image. Top is Prusa, bottom IEMAI both straight from the dryer and using manufacturer settings for each.
Then I flexed them a bit applying the same amount of force to each. And IEMAI snapped like a dried twig... and was slightly warped.
RE: PC printing on Core One
For those looking at air fryers and countertop ovens: Watch out!
A few cautions are relevant:
1. The average filament dryer consumes approx 150 watts. The average air fryer consumes from 1000 to 1700 watts, depending on model.
The same applies to countertop convection toaster ovens: approx 1450 to 1800 watts.
At these levels, if using it more than 10 minutes, you are going to find the molded plug on the cord getting very hot. And if your wall plug outlet
is old and has worn spring metal inside, you will soon be looking at a fire.
If you want to find an air fryer or countertop convection oven that can run 2 to 4 hours for filament drying or desiccant drying at high temps,
you may wish to replace your wall plug with the heavy duty 20 amp outlet plugs. These have larger metal springs inside to push onto your plug,
so the connection is more secure (less resistance), and hence FAR less likely to start a fire.
The same can be said for the molded plug on the cord that is attached to your appliance. These are almost ALL cheap china plugs that are
spot welded (poorly) with typically smaller wire than should be used (to save money AND pose a safety risk). If you simply cut off the factory
plug and screw on a real plug (properly) from Home Depot, you will find FAR less heating during usage. And far less fire risk.
2. Many air fryers do not have a timer that goes very long. Many countertop convection toaster ovens also do not have timers that go very long. The more
expensive countertop convection ovens have timers for between 2 and 10 hours, so are better suited for drying, especially Alumina desiccant which needs
450°F for approx 2 to 3 hours. So apparently you get what you pay for. The cheaper fryers and small ovens limit their run time because the design is so poor
they are well aware that the unit would fail quickly if permitted to run 3 or 4 hours continuously. If you need high temps or long periods of time, look for
the lower cost COMMERCIAL convection ovens, which are designed MUCH better and intended to run for long periods without overheating.
3. I found that many of the lower cost consumer fryers and ovens, even by good known brand names, do not reach anywhere near their claimed temperature specs.
Some that claim 450°F really only reached 350°F in customer measurement reviews. (The only people that lie more than politicians are the
the product marketing departments). Again, a low cost commercial unit, which may cost as much as $300 USD with tax, will much more likely handle
the temperature accuracy and runtime requirements for this 3D printing hobby.
While some commercial desktop ovens cost many thousands of dollars, an example of a lower cost unit that meets most needs is:
Vevor Countertop Convection Oven
which at this time costs approx $300 USD.
Now, lets be honest.... This starts to get very expensive for a hobby item. If you don't use Alumina Desiccants, you don't need 450°F.
If your main use is filament drying, your main concern is lower (but even and accurate) temps, and mainly a long cook timer that can
run for 4 to 8 hours without re-starting by hand every hour. So a much more simple oven can work. But I found that most of the lower
cost units do NOT have a timer that will stay on for more than 30 minutes or 1 hour. In order to get a several hour timer, we end up right
back in the over $200 range, for example:
https://www.breville.com/en-us/product/bov845
So, in summary, for less than approx $250 USD, I either find a very short cook timer, or very low temperatures, or bad reviews.
And, for those prices, you can buy a very good performing filament dryer that will consume FAR less electricity, by a factor of 10.
You mileage may vary, and I may be totally incorrect (which would be helpful in this case 🙂 ).
Cheers,
Neal
RE: PC printing on Core One
Just be careful, this is why ovens are a bad idea for filament drying, they are very likely to have quite a variance in temperature. eg you set it to 80 degrees and that thing could be swinging between 70 and 90, giving an average of 80 degrees. I'd be extremely cautious of the cheap ones.
If you do get one then definitely give it a test run with a wireless temp probe in it first so you can see if the variation is substantial.I have a Creality SpacePi X4 already. In my case I'll be using it for annealing printed parts. If the temp holds then I'll use it for PA.
Ive got the X2 !
Really quite like it, ideally it would go a little hotter , but it's (relatively) quiet , looks pretty cool and most importantly does a good job.
RE: PC printing on Core One
I'm still kind of shocked that there are so few options for PC CF... tons of nylon out there. Is nylon actually a good replacement for PC for printer parts?
I may get that Creality drier... as I like the dual chamber aspect of life. I love the idea of an air frier, but I suspect it'll require a bunch of testing to know exactly how to set it.
RE: PC printing on Core One
I'm still kind of shocked that there are so few options for PC CF... tons of nylon out there. Is nylon actually a good replacement for PC for printer parts?
I may get that Creality drier... as I like the dual chamber aspect of life. I love the idea of an air frier, but I suspect it'll require a bunch of testing to know exactly how to set it.
RE: PC printing on Core One
I print Prusament PA11-CF fairly regularly, and it would be probably a good replacement for PCCF in printer parts, if it wasn't for price. Being more expensive than PCCF ( which isn't exactly cheap ) the user should consider whether it's worth the extra expense.
PA11-CF is an excellent filament. It prints without adhesion issues on a Prusa PA steel plate, has low warping, and isn't as hygroscopic as other nylons,, no problem with temperature (heat deflection above 150C ) but, like all CF-filled filaments, it's very stiff (so it is PCCF). Therefore, I wouldn't recommend it for parts that require a minimum of flexibility, such as those assembled with a really tight fit ( e.g., smooth rod mounts ).
For printer parts, I use PA11-CF only for the Mosquito hotend mounts of my Vorons. After two or three years, these mounts are still as good as new. No wear, cracks or warping whatsoever.
RE: PC printing on Core One
I find the creality dual dryer to work very well, it has a heater which the air is blown through which then circulates around the surface of the filament reel, quickly drying this out which is what you will be printing with, as the reel unwinds more surface is exposed to this hot air so dries quickly. Meanwhile the core of the reel is heating up gradually and also drying out. The double reel version is also good as sometimes you can get a reel that is wider than standard so you just sit it across the two locations.
The only negative is the touch screen is cheap but functional and it can be a bit noisy.
Normal people believe that if it is not broke, do not fix it. Engineers believe that if it is not broke, it does not have enough features yet.
RE: PC printing on Core One
I find the creality dual dryer to work very well, it has a heater which the air is blown through which then circulates around the surface of the filament reel, quickly drying this out which is what you will be printing with, as the reel unwinds more surface is exposed to this hot air so dries quickly. Meanwhile the core of the reel is heating up gradually and also drying out. The double reel version is also good as sometimes you can get a reel that is wider than standard so you just sit it across the two locations.
The only negative is the touch screen is cheap but functional and it can be a bit noisy.
I used to own that one and got rid of it in favor of the Creality SpacePi x4 which can reach up to 85C.
RE:
I find the creality dual dryer to work very well, it has a heater which the air is blown through which then circulates around the surface of the filament reel, quickly drying this out which is what you will be printing with, as the reel unwinds more surface is exposed to this hot air so dries quickly. Meanwhile the core of the reel is heating up gradually and also drying out. The double reel version is also good as sometimes you can get a reel that is wider than standard so you just sit it across the two locations.
The only negative is the touch screen is cheap but functional and it can be a bit noisy.
I used to own that one and got rid of it in favor of the Creality SpacePi x4 which can reach up to 85C.
I just got the creality… you’re a bad influence. We’re not telling my wife! 😉
RE: PC printing on Core One
I just got the creality… you’re a bad influence. We’re not telling my wife! 😉
This is where you would apply an instance of "girl math": Honey, I just bought another filament dryer. Since I returned a bunch of stuff earlier, it's actually free.