Thank you for your unbiased testing. I would be interested in seeing an update if you are sent the final product at a later point. If it then turns out to work as expected, this could be quite good. But I would of course also prefer if it had the ability to rotate the spools.
I will forward them your message 😉 (if they want me to test the final product). But it depends alot from number of views of this video. So probably not.
@@MyTechFun I hope they send you one for testing. Im really interested in the annealing function. And i think you channel is the perfect place for this as everyone that is seriously interested in high tech filaments to print at home will know your videos.
@@MyTechFun -- Sarcasm apart... Igor I think you got the right ideas on slow temperature to ramp up for annealing process, as well as rotation. If you have some feed back loop to Sunlu with customer wish list, put me down for it. I ordered my unit on Jan 8th, and "holding my breath" for them to ship on, gasp - March 10th hopefully this year, so there is always a hope for a change!
Igor, thanks as always for your honesty and technical thoroughness. QIDI provided annealing directions for their PPS-CF that differ than a gradual heat-up. For PPS-CF, QIDI recommends to preheat the oven to 120C, place parts on a tray, and then place the tray in the 120C oven. Let parts stay at 120C for 6 hrs, then turn off oven and let the parts and oven naturally cool down to room temperature. Then remove the tray with the parts. I am going to try that process this weekend in my lab oven on the PPS-CF parts I've already run. I plan to print a Sherpa extruder assembly from the PPS-CF. I know you're always looking for ideas and applications for some of these engineering materials. I figure the dimensional stability, strength, and thermal resistance makes this a nice application. Note: prior annealing attempts, where temperature was gradually heated up to the target annealing temp (PA6-CF) in either sand or air, in my kitchen oven, resulted in serious deformation. It worked out better for me to wait until the kitchen oven reached stabilized temp, then put the parts in. This may be partly due to temperature overshoot and hysteresis. Again, thanks!
In my experience material deforms a lot when heated up too quickly, but carbon fibers makes the huge difference, they will deform very minimally. Annealing time depends of the object itself. The point is that every part of object must be heated up over glass transition temperature (even inside). And after this it can be slowly coolled down.
I would like sunlu to update their s1 with dynamic venting when the humidity hits a certain level so it can efficiently heat/dry without user intervention and it should be able to determine when the filament is dry too.
I like the idea of having a dedicated tool, but at £250 for a heater in a box, I'll keep on using the old kitchen oven which recently found a new home in my workshop (it cost £80, new, about 20 years ago), and a thermocouple gauge. It's been drying nylon and glass filled nylon filaments great so far, and drying silica gel, all at around 80 degrees C. Sooner or later I'll get around to replacing its very basic mechanical thermostat with PID control and a solid state relay.
What worries me is a company sent a "review" machine that is hardly stable seeing the erratic temperatures and lid warping. I was considering this but now think I'll go the alternative route and mock up something myself from a whitegoods store and save money. Honestly the 3d community deserves better from reasonably trusted companies, there's so much rush to get MVP out the door they are going to burn reputations (literally and figuratively).
Thanks for reviewing! I definitely hope this is fixed. I pre-ordered when pre orders went live, and on Monday i got an email saying they were delaying the shipments due to "technical adjustments". I wonder if it was to address these issues? Im assuming early reviewers are starting to send them feedback en-masse.
Loo0king at these results, I'm glad that I only run mine at 50 degrees! I'm mostly drying PLA - and also have about half a kilo of silica gel dessicant beads in place of the 4th reel - so the relative humidity in there is typically around 10%, which in turn helps to keep my two AMS units at a low RH as only dry filament is put in them.
Thanks for the great review! I hope SUNLU is able to improve the final product. My wife does not like it at all when i dry my filament in the oven. But the temperature is much more even than with the prototype you tested.
It’s the exact same panel like the S4. They just changed how the modes operate.If you own both machines you might mess something up by habit. Same setting, different result.
The funny part is that you can buy and use a cheap (less than half the price of the Sunlu) countertop convection oven as a much more capable, energy efficient, and accurate filament dryer and annealer.
If it runs at those temperatures the plastics will degrade, but i guess they assume it wont run at max temp for that many hours. You inspired me to use the microwave for drying, and it really works well for getting a spool ready quickly, careful with the heat though:)
@@MyTechFun i know, but i tried anyway😂, seemed to work fine with this filament. It seems like it dries the outer part of the spool quickly, but the inner is harder, so for a massive print a longer drying is probably needed, but if you will only do smaller/medium sized prints it worked well :)
Thank you for the Review. Its annoying that sunlu use the same bad temp.sensor and pid algorythm what they already used in the S2. But after test you know why the preset for PLA is 50 😅
Very cool idea to have drying and annealing in one. I hate having to use my toaster oven to anneal since I have to baby sit it with no PID. But if the price I saw is correct, this is not worth $300 at an earlybird price. I'd pay maybe $100-150 for this.
Thank you, I have pre-ordered one of these which are currently discounted, the delivery date has been pushed out to June for the UK while they perform technical updates. I will follow this closely. I really wish these dryers were motorised but that seems too much to ask for. I will be interested to see whether you are able to get updates on performance, fast heating is good to a point but hopefully they will improve the temperature control process.I would certainly check the temperatures independently when I receive one. Thanks again, Jim
After I ordered it SUNLU said it can't deliver it until...months? Now I'm stuck with a filament I can't use without having the high temp of the E2. It was part of a package deal and they won't let me return it. I'm out $50 ...thanks SUNLU.
As always, great video. I'm wondering if they are using "universal" power circuitry that has been switched to 220v but the firmware hasn't been adjusted specifically to your region. It's a great thing if it can hit 120 C, but only if you select it. You may not be able to cook, but you can make some great dried fuits and vegetables.
You seem to be saying that this is not suitable for consumer filaments that need drying like PLA, PETG, Nylon or TPU. Is that your intent? I have one on order based on Sunlu's description which says it has settings for many of those filaments. If you were intending to say one doesn't need to spend that much if one only uses the consumer filaments that dry at lower temperatures I would definitely agree with that.
-- Thank you, Igor for review. I guess Sunlu have a "monopoly" on high performance filament dryer/oven/annealer, or do you know any other manufacturer of similar product? I'm not happy with my Ebos Pholythime, since desiccant gets into small holes and jams fan motor... -- Also you get good ideas on slow temperature ramp up feature, and spool slow rotator mechanism. If Sunlu can listen to your wishes, put me for one unit too.
Shame about the overshooting temperature. They need to work on that before I would consider buying this. Other than that, I like the idea of this product.
I'm not buying a filament dryer for >300€. Especially not one that doesn't rotate the spool and has these issues with overshooting the temperature… It's also loud and huge. Thanks, but no thanks.
Thank you for your unbiased testing.
I would be interested in seeing an update if you are sent the final product at a later point. If it then turns out to work as expected, this could be quite good.
But I would of course also prefer if it had the ability to rotate the spools.
I will forward them your message 😉 (if they want me to test the final product). But it depends alot from number of views of this video. So probably not.
@@MyTechFun I hope they send you one for testing. Im really interested in the annealing function. And i think you channel is the perfect place for this as everyone that is seriously interested in high tech filaments to print at home will know your videos.
@@MyTechFun -- Sarcasm apart... Igor I think you got the right ideas on slow temperature to ramp up for annealing process, as well as rotation. If you have some feed back loop to Sunlu with customer wish list, put me down for it. I ordered my unit on Jan 8th, and "holding my breath" for them to ship on, gasp - March 10th hopefully this year, so there is always a hope for a change!
Igor, thanks as always for your honesty and technical thoroughness.
QIDI provided annealing directions for their PPS-CF that differ than a gradual heat-up. For PPS-CF, QIDI recommends to preheat the oven to 120C, place parts on a tray, and then place the tray in the 120C oven. Let parts stay at 120C for 6 hrs, then turn off oven and let the parts and oven naturally cool down to room temperature. Then remove the tray with the parts.
I am going to try that process this weekend in my lab oven on the PPS-CF parts I've already run. I plan to print a Sherpa extruder assembly from the PPS-CF. I know you're always looking for ideas and applications for some of these engineering materials. I figure the dimensional stability, strength, and thermal resistance makes this a nice application.
Note: prior annealing attempts, where temperature was gradually heated up to the target annealing temp (PA6-CF) in either sand or air, in my kitchen oven, resulted in serious deformation. It worked out better for me to wait until the kitchen oven reached stabilized temp, then put the parts in. This may be partly due to temperature overshoot and hysteresis.
Again, thanks!
In my experience material deforms a lot when heated up too quickly, but carbon fibers makes the huge difference, they will deform very minimally. Annealing time depends of the object itself. The point is that every part of object must be heated up over glass transition temperature (even inside). And after this it can be slowly coolled down.
I would like sunlu to update their s1 with dynamic venting when the humidity hits a certain level so it can efficiently heat/dry without user intervention and it should be able to determine when the filament is dry too.
to be honest if they can really reach 70C in 1 minute it's actually quite cool lol but seriously they have to fix the sensor algorithm. kudos
For temperatures this high, I definitely think it needs to rotate the spool and have at least two temperature monitoring zones.
agreed! maybe we see a V2 after customers beta test it :D
Howdy neighbor!
@@ElderMillennialStuff Eyyy!
I like the idea of having a dedicated tool, but at £250 for a heater in a box, I'll keep on using the old kitchen oven which recently found a new home in my workshop (it cost £80, new, about 20 years ago), and a thermocouple gauge. It's been drying nylon and glass filled nylon filaments great so far, and drying silica gel, all at around 80 degrees C. Sooner or later I'll get around to replacing its very basic mechanical thermostat with PID control and a solid state relay.
What worries me is a company sent a "review" machine that is hardly stable seeing the erratic temperatures and lid warping. I was considering this but now think I'll go the alternative route and mock up something myself from a whitegoods store and save money. Honestly the 3d community deserves better from reasonably trusted companies, there's so much rush to get MVP out the door they are going to burn reputations (literally and figuratively).
Thanks for reviewing! I definitely hope this is fixed.
I pre-ordered when pre orders went live, and on Monday i got an email saying they were delaying the shipments due to "technical adjustments".
I wonder if it was to address these issues?
Im assuming early reviewers are starting to send them feedback en-masse.
They noticed this very quickly. Every unit in mass production should be fixed. I got the email during shipping of the prototype.
Loo0king at these results, I'm glad that I only run mine at 50 degrees! I'm mostly drying PLA - and also have about half a kilo of silica gel dessicant beads in place of the 4th reel - so the relative humidity in there is typically around 10%, which in turn helps to keep my two AMS units at a low RH as only dry filament is put in them.
Thanks for the great review! I hope SUNLU is able to improve the final product. My wife does not like it at all when i dry my filament in the oven. But the temperature is much more even than with the prototype you tested.
It’s the exact same panel like the S4. They just changed how the modes operate.If you own both machines you might mess something up by habit. Same setting, different result.
The funny part is that you can buy and use a cheap (less than half the price of the Sunlu) countertop convection oven as a much more capable, energy efficient, and accurate filament dryer and annealer.
But you can't print out of it.
it looks like the dryer is measuring the body temperature, not the air temperature. The temperature sensor needs to be replaced.
If it runs at those temperatures the plastics will degrade, but i guess they assume it wont run at max temp for that many hours. You inspired me to use the microwave for drying, and it really works well for getting a spool ready quickly, careful with the heat though:)
How do you dry with microwave?
Just remember, no CF in microwave 😉
@@MyTechFun i know, but i tried anyway😂, seemed to work fine with this filament. It seems like it dries the outer part of the spool quickly, but the inner is harder, so for a massive print a longer drying is probably needed, but if you will only do smaller/medium sized prints it worked well :)
Thank you for the Review. Its annoying that sunlu use the same bad temp.sensor and pid algorythm what they already used in the S2. But after test you know why the preset for PLA is 50 😅
Very cool idea to have drying and annealing in one. I hate having to use my toaster oven to anneal since I have to baby sit it with no PID. But if the price I saw is correct, this is not worth $300 at an earlybird price. I'd pay maybe $100-150 for this.
This. For $300, you can buy a full size oven… $150 is pushing it for the value add
@ I bought my toaster oven off craigslist for $10 and it can go as low as 70c and as high as i will ever need for any type of filament.
Thank you, I have pre-ordered one of these which are currently discounted, the delivery date has been pushed out to June for the UK while they perform technical updates. I will follow this closely. I really wish these dryers were motorised but that seems too much to ask for. I will be interested to see whether you are able to get updates on performance, fast heating is good to a point but hopefully they will improve the temperature control process.I would certainly check the temperatures independently when I receive one. Thanks again, Jim
After I ordered it SUNLU said it can't deliver it until...months? Now I'm stuck with a filament I can't use without having the high temp of the E2. It was part of a package deal and they won't let me return it. I'm out $50 ...thanks SUNLU.
What does the desired RH value on screen do? They have a sensor for RV, but what do they do with it? Blow more air out if its too high?
It shows you the RH value. It isn't used for anything.
As always, great video. I'm wondering if they are using "universal" power circuitry that has been switched to 220v but the firmware hasn't been adjusted specifically to your region. It's a great thing if it can hit 120 C, but only if you select it. You may not be able to cook, but you can make some great dried fuits and vegetables.
You seem to be saying that this is not suitable for consumer filaments that need drying like PLA, PETG, Nylon or TPU. Is that your intent? I have one on order based on Sunlu's description which says it has settings for many of those filaments. If you were intending to say one doesn't need to spend that much if one only uses the consumer filaments that dry at lower temperatures I would definitely agree with that.
-- Thank you, Igor for review. I guess Sunlu have a "monopoly" on high performance filament dryer/oven/annealer, or do you know any other manufacturer of similar product? I'm not happy with my Ebos Pholythime, since desiccant gets into small holes and jams fan motor...
-- Also you get good ideas on slow temperature ramp up feature, and spool slow rotator mechanism. If Sunlu can listen to your wishes, put me for one unit too.
Pre-production/beta units sent for review is pointless. "You may get something kind of like this if you decide buy it"
I think viewers should view all the faults as real with every one of these "pre review" units with the history of "pre review" units.
Shame about the overshooting temperature. They need to work on that before I would consider buying this. Other than that, I like the idea of this product.
As mentioned in conclusions, this is a prototype and probably this is fixed in final version
For drying, looks like you need to preheat 20 mins before putting filament in
I have not trust in the "sensors".
Check the behavior of them as a pair: the humidity/ temperature
Glad I didn’t buy one, thanks!
Crazy how it warps it self. It feels like a child’s diy project
I'm not buying a filament dryer for >300€. Especially not one that doesn't rotate the spool and has these issues with overshooting the temperature… It's also loud and huge.
Thanks, but no thanks.
Just buy a cheap airfryer. 😂
The price is simply insane. You can get a proper oven + air fryer for that price.