are you having a hard time leveling the bed on your under three does it wobble
or the springs ones really loose ones really tight yeah that could be the
problem I'll show you how to fix it on today's
Filament Friday. Filament Friday is brought to you by these patreon
supporters now when you got your under three it came like this that came with
the base all assembled and then you add the pieces going up so what you do is
make sure that all the layers are out of place and then check it it shouldn't
rock right now and then you know you have it right and then we'll add the
uprights while on this one the base was never right so first we need to loosen
these side screws and also the uprights so we can level it and then retighten
everything I'll lay the Ender three on its side and then I'll loosen the screws
that hold the uprights next I'll loosen the screws on the side of the base then
we're ready to adjust so now the four upright screws are loose and the side
screws are loose and so now when I try to rock this it doesn't Rock so now I
need to tighten these side screws while it's flat and then we'll tighten the
screws that hold the uprights first I tighten the screws on the sides and get
these nice and snug I like to clamp a square to the upright so I know
everything is nice and straight and then I'll flip it on its side and tighten the
screws that hold those uprights after that I'll take the clamps off and I know
everything's square now that we've got the machine flat and square we can look
at the real problem the next to the X carriage right here one side is lower
than the other and the side that's lower is the side where the springs are
squished in fact I took out my caliper and measured from the top to that bar
and it's three millimeters higher on this side than it is on this side now I
wish there was an easy way to adjust this there are adjustable wheels but you
can only do so much there's two screws right here that control the position of
this arm and that's when you assemble it this is the assembly you get which is
right here and you have to bolt this crossbeam to it and it pivots around a
screw head and then there's two screws that you tighten
and if those screws are off a little bit the other end is moving a lot and
getting this right is not easy but it's easier to do it when you assemble it
because right now I got to take all this apart to get to those screws so I'm
gonna take this apart and I'm gonna adjust it and see if I can get this guy
to be level or at least slightly higher on this side because of the weight of
this thing coming over in the brackets I'm gonna get some say so slightly
higher over here would not bother me and I'm talking only like a half a
millimeter but that's we're gonna do next take this off take the lead screw
off take these top screws and take this bar off so we can get this whole
assembly off I've taken the lead screw off I've taken the top bar off I've
disconnected the motor wires and now I can lift this carriage off now it runs
up and down just fine but I can take it off and there's two holes here that
access the screws that hold this arm in place so with an allen wrench I can come
in here and loosen these guys and try to adjust this and then slip it over and
test it measure it and see if I can get close to level so here's the two access
holes here's the first one I'm gonna loosen this and I'm gonna keep this one
loose until I'm done and then the second one which is the more important one is
right here next to the motor I'll loosen this up then I'm going to twist this
thing and you can barely see it but it feels like I'm moving it a lot so I'm
pushing as far as I can up in the direction I want and then I'm going to
tighten that first one it took me three tries but I did get it there are two
screws that I loosened I only tightened the inner one and that way I could pivot
the bar tighten it test it loosen it move it so three tries and I almost had
to take it to its max and then once I got it set then I went back and tighten
the second screw and it shifted it just a little but not enough to worry about
and I did put the threaded rod in so I could check it at multiple points and I
am a half a millimeter long on this side then this side just exactly what I
wanted so now there's a couple things I want to do before we put this back
together let me show you that so the next step is I installed this top bar I
put all four screws in but I didn't tighten it
and sometimes this can be hard to put in if you can't get these to line up then
you might have to loosen the screws underneath again and we square
everything but it should still bolt in place if everything is right so I got
them in but they're not tight they're just finger tight now I take this arm
and I can lift it and see how smooth it moves now there is an eccentric nut just
on this side back here behind the bar this is the only one you have adjustment
to I loosen this guy up so it just spins because I want these outer wheels to
move smoothly and once I feel that it's moving smoothly I'll hold it up like
this and then I'll tighten these guys and then I'll adjust this eccentric
wheel to just ride so it starts to spin and that stops any side-to-side movement
so there are nod got it tight and it moves pretty smooth and I just need to
adjust this eccentric wheel it's pretty good right there so I got a nice smooth
movement so now we can install the threaded rod and now reinstall the
threaded rod and what I like to do bring the arm all the way up clamp it so it
stays up so I can run the ride through the t-nut and what I do is put just a
little bit of white lithium grease on it I put a little dab at the bottom a
little dab and the bottle third up and only two-thirds up that way the grease
will grease the t-nut and the rod at the same time and then I just run that
through and if you feel any real serious burs now's the time to fix them but
you'll feel a little bit of resistance but this thing should go pretty smoothly
through the teen app all the way down to the stepper motor you can almost let go
of this thing and it'll spin but not quite there's not it's not that free
spinning but once I get it all the way down to the stepper motor then I can
push it into the stepper motor and tighten that up so that should grease
everything so now I just can unclamp this
and push it into the clamp now I'll tighten that screw up on the clamp and
we're ready to go it's all back together no more wobble and the bed is a really
level the springs themselves are about equal and I ran my bed level test I
won't redo it here but I'll put a link to it up here but it came out really
beautiful nice and even and like I said the springs are about the same height so
it really worked and this machine is ready to go and if you're interested in
that white lithium grease I'll put a link to some in the description below