hey robot fans welcome back to the build as you can see I am knee-deep in getting
this helmet ready for paint I will have a video on that whole process soon today
we're gonna do something a little different we are going to make the first
custom 3d printed part for this build which I am super excited about I've been
feeling a little out of place with all of these resin casted parts but with 3d
printing I feel right at home also this video will contain my new favorite word
Greeley's a Griebel is defined as a fine detailing added to the surface of a
larger object that makes it appear more complex and therefore more visually
interesting so this part is super interesting to me we have the singular
tense Griebel and then we have this for the plural tense which looks like
Greeley's but if this is Griebel shouldn't this be greebles I made a post
on the Clone Facebook page to see how other builders were pronouncing this
word and after a raging debate between at least 2 to 3 people we've come to the
consensus that it's gravely x' so i will be using that word with gusto for the
rest of this video here we go gravely ok so these are the greely's that came with
the helmet they are casted in resin so I mean they're beautiful they are
perfectly detailed they really have a high high level of detail they're really
clean but they're solid so all you can really do is just glue them onto your
helmet they are greatly the truest sense of the word in that they're just pieces
that get added on for detail to make it look more visually interesting so what
am I gonna be doing with these well I've been chatting with another builder named
David he's actually completed a commander bow build already it's really
well done he's been so helpful with advice and guidance and I've been using
all of his pictures as reference and when we were chatting about the replays
he gave me a great idea to make them hollow so that I could drill a hole
behind them and have better air flow into the helmet so I took these great
leads into 3d studio max and started designing a hollow one so we could take
a look at that okay so here's the 3d model for the gravely it's pretty simple
it's three tubes put together there's a hole going straight through and the
bottom one stressed out a little bit and then I added this hexagons screen
pattern to the top tube I added a little bit of a curvature to
that screen pattern just to keep it similar to the other one
and that's it I'm not 100% sure how well this is gonna print in one piece so I
also made another version here where I separated out the screen and I'll print
these two individually and then try to put them together so we'll see which one
of these two methods works a little bit better okay so I started printing out
those versions I did the screen one first here is the screen it's just a
thin piece of ABS plastic and I printed out the casing and the goal was to try
to fit this in here now these screens are supposed to have a little bit of a
curvature to them and replicating that with this thin screen became really hard
just getting it placed was difficult it fits in everything which is good but
getting it perfectly fitted and having that little curve in the middle it's not
bad but it's not great and also there's little tiny gaps from where there's
deviation around the rim I didn't really like that
either so I printed out another screen which had a little bit of a cap to it
figuring that this little wall here will give it enough structure to push into
the casing and that worked pretty well too but I ran into the same problem
we're dealing with such a small small area here that even just a little bit a
little bit of a deviation in the print really shows up along the edges here
there's a big gap so I didn't like that at all so I moved on to printing the the
full version here and I printed them at two different materials I printed white
PLA I did it in three different temperature settings all different print
settings just trying to dial in what would be the best for this and these
black ones are printed in ABS also just like the other ones were so the PLA is
easier to print it's a much much more agreeable material but the honeycomb
pattern here this little hexagon screen didn't show up so well in the PLA I
don't know why I tried different Cooling's different fan speeds
everything and I kind of got the same result on all of them which is just not
that great the ABS which is a lot harder to print and such a small resolution
with my printer gave me a really nice honeycomb pattern for the screen there
that hexagon shape so I think ultimately I'm going to do ABS
and with the originals I was able to when I would didn't have the screen in
there I was able to lay it flat and print it like that but I couldn't do
that when it's one piece because I'll never be able to get this screen to
print so I had to print it vertically which means I had to use supports on the
bottom which gives me a little bit of a rough edge on the bottom here now this
is abs and abs sans really nicely it sounds much easier than the PLA so with
just a little bit of sanding and a little bit of putty at the top here this
is going to be perfectly smooth and I'll get that nice screen pattern that we
like the top is really good this is printed at 0.1 millimeters so it's super
high resolution and yeah these are gonna be really nice I can just start sanding
and maybe do a little bit of putty and we can start to finish work on these so
yeah the finish work on these is nothing major I went outside with some 60 grit
sandpaper and I hit all the roughest spots real quick then I did 220 grit
sandpaper over the entire thing I sprayed it with a round of primer just
to see where the high and low spots were I filled all the low spots with putty
and sand it again with 220 and then again with 320 and at that point it's
pretty much ready to paint you can repeat those steps as many times as you
need to prime to 2320 putty as many times as you need to to get it perfect
and then I hit it with two coats of matte black krylon spray paint and then
two coats of satin clear coat once the clear coats done we're kind of at the
homestretch all that's left to do is paint the meshes for that I use a cheap
little paintbrush with Tamiya metallic gray except 56 I do two coats of the
metallic paint and then if you want to you could respray it with the satin
clear coat I choose not to because I think the different finishes between the
metallic paint and the clear coat look a little nicer but if you want to give the
paint a little extra protection you can definitely do that at this point in the
build I had been working on cleaning up the helmet so there's a little bit of a
color change coming up but all we have left to do now is drill the holes in the
helmet for the Gribble's to go on top of so my goal here is to make the holes in
the dead center of this area so I measured everything out and made a
couple markings right in the center of this area I then used a small drill bit
to drill a pilot hole and slowly built up the size of the bit
the inside hole of the greatly is three-quarters of an inch so I'm gonna
make this hole three quarters of an inch when it's all said and done I have a
three quarter inch drill bit here I think the area is a little too fragile
to actually use this drill bit but I'm just gonna put it in there and kind of
score out a little circle for me as a guide and then I'm gonna sand it out
okay so some progress out here I've just been taking a 60 grit sandpaper rolled
it into a tube and I've just been you know going in and out and trying to get
this hole bigger it's going pretty well I just have to go out to the end of
these markings where I scored it with the masonry bit
okay I got two pretty good-sized holes in there the grouping still cover it up
pretty well so I think we're all set here that's going to do it for this
video I have the grebe leaves taped into place so that we could see what they're
gonna look like on the final build I've printed out a ton of these so if you
need any for your build feel free to leave a comment on this video or send me
a message as always we're gonna finish with a picture progression so I'll see
you next time please
you