Thanks for taking the time to do the tests and share the results. I don't think it is important enough to do again, but if you do something like this again, you may want to use a "control" as well. Wet 2 sponges, weigh each, put one in the dryer, and one left out for the same amount of time, and compare the difference. I have had that same dryer for a few months, and it does work well. I wish the bearings moved easier for use with the more flexible TPU's out there. For a long print you definitely want to print direct from the dryer if you live somewhere humid, and while the bearings are perfectly find for the most common flex TPU's, anything under 90a won't turn easily enough to feed properly. Other than that, it really is a great dryer.
I thought of doing a control, but it seemed so obvious that it didn’t require it haha. I guess if it was going to be more “scientific” I should have done it but it felt very not “scientific” to begin with. I had originally intended to compare it to my food dehydrator as well, but that just didn’t happen.
To me, it's less of a question about whether or not leaving out a wet sponge will dry it, but rather what the effect of the dryer is by comparison. It doesn't need to be super exact!
Great video... and I can appreciate your subtle delivery of humor. Kudos! 👍🏻 I backed Sunlu's Kickstarter campaign for the S4. I picked up a pair of S4 dryers for basically the price of one retail, today. Both of them have seen pretty steady use, without any problems. I love em!
I backed the kickstarter also but never received my dryer. Contacted them and they were not helpful. Sent receipts and they kept asking for receipt. Gave up. Happy that it worked out for you. It looks like a good product.
Yes, it’s a very nice filament drier. And yes dry filament prints better than wet. But I think calling the drier a simple trick is just click bait. Also considering that you made a nasty comment about a previous video, this is quite poor form.
Most people seem happy with their S4 but mine had problems right out of the box and should have returned it. It has a horrible burning plastic smell that doesn't go away. I eventually opened it and found the PTC heater element was burning into the plastic fan that sits against it. Seems to me like they should have put a spacer in there to keep these parts ... apart.
Most filament dryers dont remove moisture by letting the hot, humid air out, they rely on having desiccant that sucks in the moisture and you replace or dry the desiccant periodically. If the drying effect relies on letting humid air out, you are at the same time introducing cold, humid air in, and if the driyer has holes in it, it wont really work as a dry box after you turn it off. Also, I think it is generally accepted that not all filaments need drying, such as many PLAs which are one of the most common filament types. So when you are giving a blanket statement of "you need to be drying your filament", combined with the fact that you're using affiliate links and marketing the video towards newbies not familiar with filament drying, it gives off an dishonesest impression, that you're leaving out important details for your own benefit.
I had a response but I deleted it to make a more clear response. You are correct that the plastic drying process (usually in more industrial settings) relies on a bed of desiccant that hot air is forced through, which then dries out the air, and then allows that dry air to absorb the moisture from the material. I did actually forget to mention that the S4 has spots for desiccant so this drier DOES have that capability. But much like you mention “dry the desiccant” you do that by putting it in a dryer. It functions exactly like a food dehumidifier. You will not let cold air in because things always move from hot to cold. Since there is a temperature differential between the inside of the drier and room temperature as well as a pressure differential the air hot humid air will escape. If you leave this one in mode 2 will function more like a dry box because it continuously keeps the chamber warm, but I don’t think a dryer needs to function like a dry box. Here’s a link with some details on the specifics of all this: www.bpf.co.uk/plastipedia/processes/Drying_of_Polymer.aspx It describes the exact situation you mention. But for non industrial settings these types of hot air dryers will do the job. Like I explained, the hot air raises the moisture capacity of the air and lowers the relative humidity of the air. This allows the moisture to escape the filament and into the chamber. If the moisture does not leave the chamber then it will accumulate back into the filament. This was a problem with early (specific to 3D printing) dryers and you would see the moisture accumulate inside the chamber. If the drier didn’t work what I showed in my video wouldn’t have been possible. If you want to call that all made up to get a couple percent commission on a link barely anybody clicks on a video with fewer than a 1000 views be my guest. Also, ALL filament is hygroscopic, even PLA. It gets extremely brittle when it’s wet and this is verifiable and I show it in my other videos. If you don’t dry your PLA and don’t have problems then fine, but I dry mine and I recommend it as a blanket statement that you should dry all your filament. Doesn’t mean you need to dry your PLA every day, but when you start to see stringing or other problems you can and should dry it.
@@ButterPockets Sorry, I was unclear in my message. I did not mean to say that the S4 does not work or that you made up any results. I was just left a bit confused about how is the S4 meant to work, since no desiccant was used in the video, and it was said that the filament ports are meant to let humid air out - I dont know if Sunlu has designed it to work like that, but it just seemed an odd design choice to me, which made me question if it was intented to be used with desiccant or not. I will check out your wet PLA videos.
Their marketing material doesn’t really seem to mention it and I don’t think it’s necessary, but I think it would help. I do think it’s designed to let some air out of those ports and you can feel the hot stream of air out of the ports. Their marketing material does mention that. It’s my fixdry video that I did PLA. I think it was an inferior test, but PLA absolutely needs to be dried. Thanks for the feedback tho, this is how I get better.
Thanks for the video on the s4. I though about getting one, but a few other video reviews show that it has hot spots and gets the spool a bit too warm where the heaters are. I've been using the polymaker polydryer and have been happy with it, and also my food dehydrator, which is probably one of the best filament drying solutions available.
I use a food dehydrator as well. I didn’t check to see if it’s too hot at the bottom. I’ve dried some stuff at 70 degrees (even Polymaker stuff with cardboard spools) and haven’t had issues.
@@ButterPockets It would mostly affect PLA, which honestly doesn't need drying often, but I've found that PLA+ seems a bit more hygroscopic than regular PLA, so I always dry new spools. Maybe PETG as well, depending on how hot your dry it; I dry mine at 65c.
I’ve done all my PLA at 55C. It doesn’t need it often but I definitely have some rolls that are so brittle they snap. I’ll see if anything detrimental happens and I’ll absolutely update the review!
@@ButterPockets Yeah, the brittleness is what I've experienced as well. It seems like a really nice dryer, the hot spots just worry me. How loud are the fans?
It’s noticeable but it’s absolutely quieter than my food dehydrator. My wife says of the 4 dryers I have it’s her “favorite” because it’s the quietest.
Every company is going to send review samples before the public gets it. A few months ago air freight from China was being highly inspected at LAX so that might be causing some delays still too. I understand being frustrated that you ordered something and don’t have it, but it’s not like they are actively trying to deliver their orders late.
@@ButterPockets Communication is a fundamental thing, they should be communicating, if you put a date on an order, and don't deliver on that date, communicate. I've received no communication in almost two months. As it stands, I feel like I was ripped off and you don't know whether they're "actively trying to deliver" or not unless you work with them, so spare me the argument you have no right to make on their behalf.
spare me whining about your order when I don’t control what they do? Contact them. If they don’t answer charge back. I was trying to offer you some explanation. Not sure what you want from me.
@@dovan4092 nah, ButterPockets is in the right here. don't engage with someone and complain about something over which they have no control if you don't want them to respond, and definitely don't get uppity when they do you the courtesy of trying to offer some possible explanations.
hy·gro·scop·ic /ˌhīɡrəˈskäpik/ adjective adjective: hygroscopic (of a substance) tending to absorb moisture from the air. relating to humidity or its measurement.
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Thanks for taking the time to do the tests and share the results.
I don't think it is important enough to do again, but if you do something like this again, you may want to use a "control" as well. Wet 2 sponges, weigh each, put one in the dryer, and one left out for the same amount of time, and compare the difference.
I have had that same dryer for a few months, and it does work well. I wish the bearings moved easier for use with the more flexible TPU's out there. For a long print you definitely want to print direct from the dryer if you live somewhere humid, and while the bearings are perfectly find for the most common flex TPU's, anything under 90a won't turn easily enough to feed properly.
Other than that, it really is a great dryer.
I thought of doing a control, but it seemed so obvious that it didn’t require it haha. I guess if it was going to be more “scientific” I should have done it but it felt very not “scientific” to begin with. I had originally intended to compare it to my food dehydrator as well, but that just didn’t happen.
To me, it's less of a question about whether or not leaving out a wet sponge will dry it, but rather what the effect of the dryer is by comparison. It doesn't need to be super exact!
Great video... and I can appreciate your subtle delivery of humor. Kudos! 👍🏻
I backed Sunlu's Kickstarter campaign for the S4. I picked up a pair of S4 dryers for basically the price of one retail, today. Both of them have seen pretty steady use, without any problems. I love em!
I backed the kickstarter also but never received my dryer. Contacted them and they were not helpful. Sent receipts and they kept asking for receipt. Gave up. Happy that it worked out for you. It looks like a good product.
I got 2 S4’s in their kick starter and they are wonderful driers.
Great video!
Yes, it’s a very nice filament drier. And yes dry filament prints better than wet. But I think calling the drier a simple trick is just click bait. Also considering that you made a nasty comment about a previous video, this is quite poor form.
Okay you caught me, I click baited!!!
Lighten up dude. 😂
Most people seem happy with their S4 but mine had problems right out of the box and should have returned it. It has a horrible burning plastic smell that doesn't go away. I eventually opened it and found the PTC heater element was burning into the plastic fan that sits against it. Seems to me like they should have put a spacer in there to keep these parts ... apart.
Interesting. I want to take mine apart now and see if there’s something to discover.
I just started printing TPU this year and it's super useful. Dry stuff does help.
Most filament dryers dont remove moisture by letting the hot, humid air out, they rely on having desiccant that sucks in the moisture and you replace or dry the desiccant periodically. If the drying effect relies on letting humid air out, you are at the same time introducing cold, humid air in, and if the driyer has holes in it, it wont really work as a dry box after you turn it off.
Also, I think it is generally accepted that not all filaments need drying, such as many PLAs which are one of the most common filament types. So when you are giving a blanket statement of "you need to be drying your filament", combined with the fact that you're using affiliate links and marketing the video towards newbies not familiar with filament drying, it gives off an dishonesest impression, that you're leaving out important details for your own benefit.
I had a response but I deleted it to make a more clear response.
You are correct that the plastic drying process (usually in more industrial settings) relies on a bed of desiccant that hot air is forced through, which then dries out the air, and then allows that dry air to absorb the moisture from the material. I did actually forget to mention that the S4 has spots for desiccant so this drier DOES have that capability. But much like you mention “dry the desiccant” you do that by putting it in a dryer. It functions exactly like a food dehumidifier. You will not let cold air in because things always move from hot to cold. Since there is a temperature differential between the inside of the drier and room temperature as well as a pressure differential the air hot humid air will escape. If you leave this one in mode 2 will function more like a dry box because it continuously keeps the chamber warm, but I don’t think a dryer needs to function like a dry box. Here’s a link with some details on the specifics of all this: www.bpf.co.uk/plastipedia/processes/Drying_of_Polymer.aspx
It describes the exact situation you mention. But for non industrial settings these types of hot air dryers will do the job. Like I explained, the hot air raises the moisture capacity of the air and lowers the relative humidity of the air. This allows the moisture to escape the filament and into the chamber. If the moisture does not leave the chamber then it will accumulate back into the filament. This was a problem with early (specific to 3D printing) dryers and you would see the moisture accumulate inside the chamber. If the drier didn’t work what I showed in my video wouldn’t have been possible. If you want to call that all made up to get a couple percent commission on a link barely anybody clicks on a video with fewer than a 1000 views be my guest.
Also, ALL filament is hygroscopic, even PLA. It gets extremely brittle when it’s wet and this is verifiable and I show it in my other videos. If you don’t dry your PLA and don’t have problems then fine, but I dry mine and I recommend it as a blanket statement that you should dry all your filament. Doesn’t mean you need to dry your PLA every day, but when you start to see stringing or other problems you can and should dry it.
@@ButterPockets Sorry, I was unclear in my message. I did not mean to say that the S4 does not work or that you made up any results. I was just left a bit confused about how is the S4 meant to work, since no desiccant was used in the video, and it was said that the filament ports are meant to let humid air out - I dont know if Sunlu has designed it to work like that, but it just seemed an odd design choice to me, which made me question if it was intented to be used with desiccant or not.
I will check out your wet PLA videos.
Their marketing material doesn’t really seem to mention it and I don’t think it’s necessary, but I think it would help.
I do think it’s designed to let some air out of those ports and you can feel the hot stream of air out of the ports. Their marketing material does mention that.
It’s my fixdry video that I did PLA. I think it was an inferior test, but PLA absolutely needs to be dried. Thanks for the feedback tho, this is how I get better.
Thanks for the video on the s4. I though about getting one, but a few other video reviews show that it has hot spots and gets the spool a bit too warm where the heaters are. I've been using the polymaker polydryer and have been happy with it, and also my food dehydrator, which is probably one of the best filament drying solutions available.
I use a food dehydrator as well. I didn’t check to see if it’s too hot at the bottom. I’ve dried some stuff at 70 degrees (even Polymaker stuff with cardboard spools) and haven’t had issues.
@@ButterPockets It would mostly affect PLA, which honestly doesn't need drying often, but I've found that PLA+ seems a bit more hygroscopic than regular PLA, so I always dry new spools. Maybe PETG as well, depending on how hot your dry it; I dry mine at 65c.
I’ve done all my PLA at 55C. It doesn’t need it often but I definitely have some rolls that are so brittle they snap. I’ll see if anything detrimental happens and I’ll absolutely update the review!
@@ButterPockets Yeah, the brittleness is what I've experienced as well.
It seems like a really nice dryer, the hot spots just worry me. How loud are the fans?
It’s noticeable but it’s absolutely quieter than my food dehydrator. My wife says of the 4 dryers I have it’s her “favorite” because it’s the quietest.
"Wet Filament Hates This One Easy Trick..." Yeah me pulling out my fucking wallet.
I’m supposed to tell you this got a “Mrs Pockets laugh”
Nice that they're *giving* all these filament connectors to content creators but those of us who payed are still waiting. I'm about to put in a claim.
Every company is going to send review samples before the public gets it. A few months ago air freight from China was being highly inspected at LAX so that might be causing some delays still too. I understand being frustrated that you ordered something and don’t have it, but it’s not like they are actively trying to deliver their orders late.
@@ButterPockets Communication is a fundamental thing, they should be communicating, if you put a date on an order, and don't deliver on that date, communicate. I've received no communication in almost two months. As it stands, I feel like I was ripped off and you don't know whether they're "actively trying to deliver" or not unless you work with them, so spare me the argument you have no right to make on their behalf.
spare me whining about your order when I don’t control what they do? Contact them. If they don’t answer charge back. I was trying to offer you some explanation. Not sure what you want from me.
@@ButterPocketsfact of the matter is he\she is right. I don't know why you're taking it personally.
@@dovan4092 nah, ButterPockets is in the right here. don't engage with someone and complain about something over which they have no control if you don't want them to respond, and definitely don't get uppity when they do you the courtesy of trying to offer some possible explanations.
Whats that one easy trick?
Getting you to click on the video :)
You sneaky bustard!🤬 But we good now. Ive just reported that scam to YTPD 😹
nice ad
Thanks it helps to pay the bills and get products that are worth spending the money on into consumers hands :)
hy·gro·scop·ic
/ˌhīɡrəˈskäpik/
adjective
adjective: hygroscopic
(of a substance) tending to absorb moisture from the air.
relating to humidity or its measurement.
That’s precisely what I said