this is kingroon kp3s fdm 3d printer and this printer is actually a little
different for me. I've never used this kind of single extrusion printer before and i
honestly wonder how it turned out. Because there is no second extrusion on the z-axis,
it's quite small and lightweight, easy to carry and it fits almost anywhere. May not even need
an extra table for this. besides that the best part is that it has many beautiful
important features for its price such as magnetic printing beds direct drive extruder and high
precision linear guides we'll look at all of these deeply but before that let's take a quick look
all right guys kp3s looks good and let's start with the printing bed the heated printing bed is
aluminum and looks slightly smaller than normal it offers a printing volume of 180 millimeter each on
the xyz axis the printing volume may seem a little small but if you ask me it will be enough for most
of your prints bad moves on pmg12c linear guides linear guides are one of the noticeable beautiful
features of this printer we can see them on both x and y axis and i have to say that they
are much better than traditional carriages because higher printing speeds are more accurate precise
positioning can be achieved with these as you can see a magnetic printing surface is preferred as
the printing surface by the way unlike other printers i see magnets used both on the bed
and on this printing surface these magnets seem a bit thin but it sticks well it's okay besides
that this printing surface you see is really good at sticking it became one of my new favorites the
surface is very slight rough cutted and quite flexible not any metal or spring steel and
sticking is literally perfect i think pei is even better than the surface i got a lot of prints and
had no sticking issues at all although the surface is not very rough the print sticks very well in a
way that i don't understand but there's one thing that keep in mind is if the nozzle touches the
bed when it's hot such marks can occur need to attention that in addition as you already know
it's very easy to remove the print in magnetic pad when you band it the part comes out easily
this is how the first layer looks as well it's similar to that of a glass bed
there's just a little problem over there i think it happened on way it's not a big problem though i
see the leveling springs on the bed and leveling is manually as you can see there is no leveling
probe on the printhead or rather it's not in the standard version of the printer there is also
version with 3d touch as well but i am skipping this for now well when we look at the x axis i see
42 millimeters stepper motor belt drive and linear guys on these axes in the same way linear guys are
nice plus of this printer however as a small cones there are no bad tensioners on both x and y axis
maybe not so necessary though after all the belts come out of the box smoothly and the tension looks
fine but if needed in the future it will have to be done manually with zip ties in this way the
printer has a direct drive extruder and as you can see there's a titan extruder and a pancake stepper
motor the fact that the printer is a direct drive is a big plus because direct drive minimizes
the distance where the filament field band or gem and provides to use the flexible filament
without any problem which i think it's nice to get a flexible print on such a small printer
just below the extruder i see the view base just below the extruder i see the v5 hadn't
i think a 0.4 millimeter nozzle there is also 24 volt thumb for layer cooling and a 3d printed
black fan duct at the end on the very other is a black vertical metal to cover up all these parts
honestly i like that this cover was vertical and also i think these sharp corners are professional
looking let's look at the vertical z-axis like most printers an 8-millimeter lid screw and
brass nut provide movement this z-axis carriage is aluminum as you can see and has wheels like most
printers the wheel clearance is adjusted using the eccentric nut here but it looks pretty tight so
i'm not gonna change it at all the stepper motor is also inside the base as you can see outside
the printer there is only modern coupling kp3s has a big difference compared to other printers
which is that as you can see there is only one extrusion on the z-axis and it's located on the
left side usually in my reviews after soft direct drive i look if the printer has dual z axis but
there is not even any vertical extrusion on the right side of the printer let alone the double z
axis joking aside that's what the printer is all about this is literally the design of the printer
in this way it's lighter and smaller which i think it's very nice to be small i can use it
almost anywhere don't let a single extrusion make you doubt about strength or durability
by the way i'm using this kind of single z-axis printer for the first time and actually at first i
thought that single z-axis might be a problem that would be bending at the ends or something because
there is nothing to sport this axis on the right side and the printer has a direct drive which
makes the printhead heavier than usual although pancake motor was used to make the printhead
lightweight but in the end this means extra parts and weight compared to the bowden extruder
but as you can see despite all these even at the ends of the axis there are no any gaps bending or
something it looks pretty tight actually i think the reason for this rigidity may be the cross
section of this axis and the fact that it's not too long it gave me a lot of confidence actually
let's look at the motherboard as you can see here there's a king on kp3 version 1.3
32 bit motherboard it uses silent tmc 202 and the five stable motor drivers that's why the
printer's noise is also quite low there are no motor driver noises during the printing
there is only five noise icon here which is pretty normal at a distance of one meter from
the printer the sound level is around 50db the sound of the printer is quite normal not noisy
now let me shortly talk about unboxing
as you can see kp3s comes almost assembled and obviously not much to do for the installation
most of them are spare parts anyway installation can be done in about 10 minutes we first fix
the gantry to the base from the bottom but don't forget to put on the t-nuts of this piece before
fixing it otherwise it will be very difficult to install it later i made this mistake and
then head to disassemble again after as i said we fixed the gantry to the base from the bottom
then we screwed these t-nuts and the z-axis is exactly 90 degrees perpendicular then we
install the motor coupling insert the lid screw and the printer is ready there is no filament
holder to mount on the printer there are these kinds of for spool and that's how we place it
they work nicely but take up extra space outside of the printer and it seemed a bit
of a challenging to me so i was thinking that i designed a filament holder to here which i
already saw a pre-made design i probably used that design instead of these as a spool holder
out of the printer there's also an external 24 volt power supply as you can see that is not fixed
to the printer as well like the filament holder or not inside the printer either we select the
right voltage from here and turn on the printer by the way the screen of the printer is placed
horizontally on the front left the screen like the printer is a bit small but enough
okay let's see the menus and then move on to the prints we have six different
options on the screen interface preheat home move leveling settings and printing options
a beautiful simple and quite clear interface as you know from the preheat option we hit the
nozzle on the bed there is a home option for all axes the x-axis is going to zero and the y-axis
is the same way as you can see the end-stop of the y-axis is inside the base by the way
there's a leveling option here but this is not autobed leveling just an option
to make it easier to do manual leveling from five points there's a little auto leveling
on the printer as i said before but i guess the firmware needs to be updated for that. this was
screen interface a simple and clear interface easy to use the touch feel is also not bad.
alright let's move on to the prints and start with the 3d banshee
okay let's start with the bottom layer the letters are fine
there is no sticking problem the layers are looking smooth
no problem with the lead screw i printed all of them with 0.2 millimeter layer height by the way
these parts turn out nice the cooling seems enough the retraction settings also look good
okay 3d bench is fine now let's get some print well at the same time i'd like to tell about
pros and cons about printer the first thing is of course that the printer has a single z extrusion
i think it's probably more useful that way it takes up less space is lighter and there is no
difference from traditional printers on print quality i love the printing surface by the way
the filament sticks very well i had no warping or sticking problems in any of the prints i got so
far since the printing surface is magnetic it's also really easy to remove the print one of the
great part about the printer is that it has linear guides i haven't tried it yet but this provides
much higher speeds and better quality the printer has a direct drive extruder so there is no need to
worry about flexible printing and it has tmc 2025 silent stepper motor drivers so first thing i will
say about the cons is that i think it would be better if the screen was tilted rather than flat
it doesn't look very good that end stops are exposed in this way doesn't seem a pro there are
no bed tensioners but that's not exactly a cons i think it would be better if the filament holder
and power supply were fixed to the printer okay those were my negative thoughts about the kp3s
by the way there are great designs for all these cons for example the design has made
on bottom placing the power supply looks very nice i think i probably make all these
upgrades and share a new video about it. Allright that was the kingroon kp3s fdm
3d printer hope it was useful thanks for watching see you in the next video... bye...