0105 Blender First Test Print output Video Lecture | Learn 3D Modelling: The Ultimate Blender Guide - Software Development

okay now we have an input in an output
and let's look at what this really means
we're looking for strong accurate parts
okay there's a few things that happen if
you do things as far as the layout is
concerned on 3d parts there's tons of
stuff to learn from these test prints
and I'll walk you through what this test
print looks like as through my eyes and
what happens with certain things that
occur when you when you print okay
the first problem right here this is a
one millimeter wall it's 15 millimeters
tall and the rest are 10 so what happens
is it starts printing back and forth at
the very end it goes back and forth back
and forth and look at what happens it
clubs okay and the wall shrinks just a
little bit - why this was the only print
that was printing so what happens is it
doesn't have time to cool it just keeps
going back and forth that's where you
need a fan in order to cool it and I try
to stay away from fans using tricks like
separating out my models in different
things like that but I try to separate
how my models enough so it has time to
cool between thin-wall operations that's
a little trickier stuff so don't worry
about that just yet here's a 10
millimeter wall tall by 1 millimeter and
look at how nice that looks okay looks
out really nice this is the head right
now without any changes and this is a
head with augmentation in the RIP code
okay so in this case I have a point five
head it's mil point five diameter and
this is what its output is now when it
gets to the two this is a two millimeter
wall look what happens I have one pass
then I have another but I can't
formulate anything in between well why
well it's 0.5 so it goes 0.5 0.5
that equals one and now when it tries to
fill in two it can because it can't get
another one in here because that would
be 0.75 right so can't fill in this wall
because the the distance between the two
would not equal the diameter of the head
at any one time all right next one is
2.5 you got a little bit thicker and
then finally we have a 3 now look at
this problem
I got 2 thick walls next to each other
and the heat from the both of them never
loud the material too cool so then you
get problems there too again can be
solved with a fan pretty easy now I like
this wall right here this 2 millimeter
wall and I like using the 2.5 millimeter
wall sometimes I use a one millimeter
wall when I I deal with cases and I deal
with like lids and stuff like that but I
know what these parts look like and what
how sturdy they are and we'll get into
this is just test fit one and that's
dealing with walls but we'll get into
other test prints where I show you other
things but for right now know that the
one millimeter wall is sufficient but
it's not very sturdy this one is very
sturdy but not structurally sound and
this one is absolutely sturdy beyond
belief what I want to use is this wall
all the time so I do use this wall this
time the two millimeter wall but I have
to do some math ok not a problem what
they don't teach you is the fact that if
you have a point five diameter extruder
head in the code you can stipulate that
it's going to be up be 0.45 and the
parts turn out really well a little bit
of shrinkage a courage problems speed is
definitely a consideration so it's a
much slower but look what happens the
two gets filled in because it can do the
math
okay so that's what I use a lot is the
to memory the two millimeter wall and
then I just augment the software to be
0.45 and it prints it out quite well all
right so this study just kind of look at
it tit for tat back and forth try to
think of what happens with things I
think that's one of the biggest things
that you have to learn about is you have
to kind of be a scientist about this
stuff you can calibrate your machine to
death but there's so many things like
thermodynamics everything that that
takes into consideration with the
cooling of the material and the movement
of the head back and forth how
everything there's so many things that
play upon itself in here that being a
scientist in some nature's can be quite
hurtful and then other nature is quite
helpful in this case limit it down to
what it's really important sturdy walls
and what can I do here to make myself a
better model or to get a better output
so this is test print one enjoy please
move on to the next unit