Creality SpacePi X4 Review

Hello All,

So, I have the Creality SpacePi X4; what do I think about it ?

To simply say,”Excellent”, would be far too basic an explanation.

I would guess that all of the other designers/makers of filament driers, are going to look realy hard at this unit Creality has made. It walks all over them bigly.

What impresses me is that the readout of Temperature and Humidity is fairly accurate… (See…Note below about accuracy tests)

I have a Sunlu S1 drier and it is out temperature wise by 6 to 8 degrees.

Another impressive point is HOW the humidity is handled.

It constantly measures the humidity and vents it via a fan as a calculated event.

The fan then closes itself off to prevent humid air enterering (clever !).

Unlike other driers, the top is sealed.

So if sealed and the fan seals itself, how does it get air and not create a vacuum when the fan is exhausting humid air ??

It intakes air underneath the drier that passes through the desiccant bag at the center bottom of the filament bays, which has hot air blowing through.

In use, the SpacePi is quite simple to operate. There are options that can be set independantly for each bay (each bay can hold 2x1Kg rolls of filament or 1x2Kg roll.

By simply touching on either the L or R at the top of the display, you can access and change the temperature and dry time for that bay.

Also, while there, if you touch on the icon of a spool (top right of that screen), you can select what type of filament you have in that bay and the correct temperature is selected to suit. Once selected, that spool icon now shows the type name in it.

Touch the back arrow to now display the main screen.

If you touch the “V” in the middle/top of the display it asks if you would like to dry both chambers (neat !).

At the bottom of the screen you will notice 3 icons…


The center (Auto) takes you to the screen where you can set Temperature and Humidity auto settings that will occur when left powered on.

From back on the main screen

The Icon on bottom right takes you to the Settings Menu

From back on the main screen

The Android looking icon on the Bottom Right is for (My Drying) settings


You have 3 seperate selections you can set different Temp and Humid for.
Touch one and it will go to a screen for you to select which chamber.

From back on the main screen

I have touched the right side and it gives me info for that chamber.

Bottom Right icon pauses or stops the heating, then above it is to change drying time and above it you can change the temperature of the chamber.

The icon on the right (like a spool tilted) allows you to name the type of filament in each slot for that chamber.


I think the SpacePi X4 is certainly accurate enough !

To give you an idea of the climate where the drying and printing is done,

This is a reading taken at 10AM (this has been typical for aprox 1 month)…

Appologies if I have repeated anything above.

The Note below

My testing of Temperature and Humidity are performed using 2 seperate AHT30 sensors.

I have a Sensirion SHT85 (Temperature and Humidity) that I had a friend in University run tests on in a lab to check it against manufactures claims and it is within .5% of Temp and Humidity over a 10 hour sweep.

That SHT85 I have logged over 24 hours in a vented chamber with my 2 AHT30’s and found them accurate to aprox .5deg C and 1.5%RH which is plenty good enough for this test.

I have the 2 sensors send the readings via Wifi and also display on a screen in front of the driers.

Well, would I recommend the new Creality SpacePi X4 ?

DEFINATELY !!!

Nothing else on the market comes even close.

Cheers.

3 Likes

Thanks for the deep details review on the X4

Thanks for the in depth review. :+1: Lots of improvements on this dryer…

Mine should be here soon … Won the Space Pi Plus On the YT Live Stream, I’m Happy with it … So I bought the X4 Preorder with 2 rolls of RFID Filament free they offered if I bought in the 3days …

Thanks for the Review

Love it except .. Has the Bowden tube jam like the SpacePi Plus, slowly works it’s way in and wraps around the spool.

Trying to figure out how to replace the Bowden Extruder Connector with one that stops it going in.. or the fix someone made for the SpacePi/Plus, Creality must have known this problem , why didn’t they make the hole smaller so it stops i from going in.


Used this as a stopper for now ..

Hello Rob_H,

That seems an odd problem.
I have used mine (only the left side) for about 2 months almost daily and have never had it do that.

Cheers.

I’ve got a new X4 but I’m having an issue with the PTFE tube fitting in the rear. When the unit i swarm, they pop right out, I should say, almost fall out. Not like it takes any effort. Was hoping I got a pre-production device and it needed exchanging.

The unfortunate thing is, I don’t think anyone at Creality checks this forum daily (if at least often) and therefor remain blissfully unaware of many problems with much of their products.

I believe they think we are all technically minded and will sort things out for them.

Shame !

1 Like

It happened on My SpacePi Plus (Won it on Live Stream)
and it came with Bowden tube … X4 more money didn’t come with any,

I’m going to replace it with ECAS04 Pneumatic Fitting (Aliexpress) once I figure how to remove it , that one don’t allow it to pass through.

I like the pass through but not the fitting fit. Mine aren’t threaded, they are pressed into the plastic housing. So when it gets warm they just press right back out. I might try some epoxy or CA glue and see if it helps.

Hello All,

I am posting this knowing that the chances of @CREALITY reading this is “QUITE LOW”, but anyway…

There is 1 thing that I think @CREALITY should think about if they do revise the Spacepi X4 and that is putting the on/off switch on the front instead of the back.

Having the on/off switch at the back can make it hard to switch if the unit is in a small area !!!

But, I imagine this post is not likely to be seen by anyone involved with development :rage:

Cheers.

I’m not getting very accurate results with mine. Was even considering sending it back. The displayed humidity never gets very low. When drying pla @50 degrees, it’s about 23-26% humidity. However when I place one of my round hygrometer inside in the middle of the spool it reads, 11% humidity, and a little low on the temperature. See pictures it’s kinda hard to see, but in the second picture the temperature is 45.3 and humidity is 11%. I had a Sovol SH03 the new one for a few days before having to send it back, and that thing had valves you could hear clicking open and closed to control the moisture. It would get down to 8-9% humidity when drying at 80C. I can’t leave my hygrometer in there at that temperature as it would destroy it. I’m thinking that there is something wrong with the measurement of the space pi x4, or I got a bad one. If anyone else has thoughts please let me know.

Hello bobsbbq and welcome,

The SpacePi X4 doesn’t use relays and a valve, it turns on the extractor fan to remove moisture.

More efficient method.

Check the silica gel bags in the bottom of the chamber (shake them and put back in).

Run the chambers overnight at about 70 to 80 deg to fully dry them.

When drying PLA do so at 60 deg and feed from the chamber to the printer.

For ASA I set it at 70 deg and don’t have a problem.

I have checked mine with known calibrated temperature / humidity sensors and the SpacePi X4 is within 1 digit accurate.

Cheers.

I know the creality doesn’t use valves, I was referring to the Sovol SH03. I have replaced the desicant and ran overnight, actually 16 hours at 80 degrees and the readings are not accurate. See this picture after drying, during the drying it showed on the display to get down to 19% and after hours and fully cooled off it was holding steady at 20-21%. However that reading is off according to my other hygrometer. Similar to the photo I posted before the difference is 10+% difference. This same hygrometer while cheap, is pretty accurate. When I put it in my AMS 2pro it reads very close to it’s internal reading.

I think there is either something wrong with mine, or the lcd/sensor isn’t calibrated properly.