SUNLU Filament Dryer Box S1 for 3D Printer Filament, Dehydrator of FilaDryer, 3D Filament Enclosure Compatible with 99% of PLA PETG ABS TPU ASA Filament, Spool Holder, White

After I enlarged the tiny print on the manual, and read the instructions, it works great. I bought two, and live in a humid state (Tennessee), and after using one of these on an older PLA filament that had failed twice on a 10-hour print, it worked fine. I’m now using it on all my filament - I don’t feed it directly into the printer but I’m sure it would work fine

......THIS REVIEW IS FOR SUNLU FilaDryer S1 Plus.....I'm giving this 4 stars, ONLY BECAUSE I HAVE NOT LONG TERM TESTED IT. Otherwise I'm very impressed with this unit.Saw Youtube videos on this, and expected to make some modifications. Add a fan and a humidity sensor. Plugged it in, turned it on andheard a whine. Thought the electronics were bad. Opened the top and was hit with a blast of warm air! This unit has a fan!!! The instructionsare almost useless. Playing around to set the temp, I found it also has a humidity sensor. Double Bonus! The only modification needed issome small vent holes in the back of the top lid to let the humidity out.Instructions... After plugging in, press any button to start. Default settings are 6hrs at 50c. Long press left button to set time, 06H will be displayed. use left orright button to adjust time from 01H to 99H. Long press left button to exit. Short press left button to set temp. Long press of right button will display humidity.Some testing... Found that interior temp did match displayed temp. Was about 8 degrees Celcius lower. After putting a tight cardboard box over top of dryer, the interior temp came up to only 2 degrees lower

I got mine and it's nice but how do you turn it off?

I got this mainly for my tpu as it’s temper mental and it made a difference by just running the roll on a cycle then putting it on the printer. I understand the people saying it needs an upgrade fan but it is what it is.

I was able to get two rolls of filament in the container and fire it up. Worked perfectly. Filament went from useless to good working. A+++

I live in a Oklahoma right on a lake. I love the lake view, but hate the humidity. My home stays above 50% humidity. This makes my 3D printing hobby difficult, especially with PETG and Nylon filaments.I've used home made dry boxes for a while, but it takes them a long time to dry the filament. I even tried using a food dehydrator, but it is too big to leave out all the time, so it is a hassle.When I saw people talking about the Sunlu Dry Box on Facebook I was intrigued because it ticked all the boxes of what I wanted. Size, speed, adjustability, able to print directly from the box, & easier than DIY.I'm a skeptic, so I had to test the product as soon as I got it.I tested the Dry box by drying a roll of 1 KG roll of PETG (approx .9 KG remained) that I accidentally (lazy) left out for a couple of weeks. If you are familiar with 3D printing, leaving PETG out is a bad idea. Here is how I tested the unit:1. I got a baseline for the roll of PETG by placing it in a sealed rubbermaid container for 4 hours. The humidistat in the container with the roll settled at 53% at the two hour point and stayed there for the duration.2. I placed the PETG in the Sunlu Dry Box per the instructions. The recommended temp for PETG is 48-52c. I set the temp to 50c and set a timer on my Echo dot for 4 hours. You can actually set the time on the Dry Box too, but I wanted an alarm to notify me so I could remove the filament at precisely 4 hours.3. I put the roll of PETG back in the Rubbermaid container and checked it at 2 hours. The humidity reading was at 34%, a 19% drop in only 4 hours!I really like this product for several reasons. Here are the pros and cons as I see them:Pros- Good Instructions- User adjustable timer that shuts unit off after desired time. The default is 6 hours, but it is user adjustable 0-24 hrs- User adjustable drying temperature to accommodate needs of various filaments and actual temp and set temp are displayed on the LCD unlike competitors (Table of recommended temperature for various filaments included)- Highly effective at drying PETG and Nylon (only things I have tested thus far)- Small form factor, so I can leave it out all the time- Filament can be used while in the box (keeping it conditioned)- Great customer ServiceCons- Does not give the humidity reading on the LCD. It isn't a deal breaker. Moreover, you can easily purchase a humidistat from Amazon for <$3.00- Turning unit off via the menu takes a few button presses. I would prefer a manual on/off switchAs you can see I really like this product. I wish I could afford to purchase two more right now. I'll get them in time.

Twice now I’ve walked up to find my print had failed because it quit extruding PLA. The first time I had 15% of my print left and this dryer was hanging in the air attached to the side of the printer. The second time about 10 rows of my print was severe under extrusion before finally it quit extruding all together. When there’s about 4 complete rows of PLA left on the spool, there’s enough room for the spool to tilt and jam inside. This has Happened with 2 different spools. Really would have liked a finished product thay I don’t have to modify.OTHER than this, the dryer works well and does what it advertises. Just took 1 start for issue above

There's no fan in this. And it doesn't get anything close to the set temperature. With the temperature set to 50°C, left on with a 1kg roll of filament for about 4 hours, an IR thermometer pointed at the side of the filament roll read 35°C (and it felt barely warm to touch).Will try a proper temperature sensor inside the box.Two stars because it's nicely enough made.

I’m a part time 3D printer. Filaments degrade if not kept properly. Guilty! I recovered a unprintable filament using this dryer. Set to 12 hours and covered it with the cardboard box upside down. It’s a cheap plastic thing with no Insulation and does what it says on the tin (with a bit of common sense) I’ve also kept it on during a print. I have to say the best print yet.Not printing advice, not much PLA was hurt during the testing of this product.

I'll keep this short I don't feel this has done much if anything to the PLA I have put in it, even when the temps jacked up at the max recommended temp for PLA the box barely feels warm to touch.I certainly wouldn't recommend this as an option to use but then saying that I can't say it doesn't dry out the filament maybe that temp is just enough to do it but I'm not convinced that's for sure.

I bought it knowing it has an issue with heating the whole roll of filament properly, this can be fixed by fitting a 24v fan inside the box to circulate the air, it now reaches 55c for the whole roll.

Seems to work. I keep the roll in use in it all the time. When I start a print I turn it on. Better half is happy I don't put the roll of filament in the oven anymore :)