It worked. Considering it was a first step, and a first try, I'm somewhat impressed.
I ended up casting two takes. The first time, I mixed up too much plastic, and it ended up making a solid copy, just like the original. In the end, it'd make a good practice piece if I want to try carving it up.
The next attempt, I mixed a much smaller portion of the casting plastic, and then rolled it around inside the mold as it set up. I am using smooth-on Smooth-cast 305; and it gives me about 7 minutes pot-time and 30-minutes of cure. it took about 10 minutes to get glutinous enough that I didn't need to keep slushing it around. The result for this was better, and closer to what I wanted to get. It was non-uniform, and some of the places are thinner than I'd like, but that can be fixed with greenstuff.
So, now, I'm trying a third option. I took the mold, and put a layer of clay on the inside, and then poured a third layer of the mold material. Now, when it finishes setting up, it SHOULD leave a void that is about 1/8"ish thick. If I try something like this again, I may just do a single cast for the outside and then the internal plug. We'll see how it comes out....
Wednesday, April 23, 2014
Firsts
For the first time, I’m giving a shot at rubber mold
casting. This is something I have wanted to do for a long time, and I’ve
always been reticent to give it a try. To be honest, this stuff
ain’t cheap, so I have to be willing to sink a couple $$ into just taking a
chance. This is one of those things where there is a whole
cascade of events waiting on “something” to give. I would like to
build from scratch, and the engineering of the models isn’t so hard, that stuff
I can do in my sleep. It’s the sculpting/molding/casting of them that has
held me back so far. Because I didn’t know how to do any of that, or at
best, didn’t have faith that I could figure it out, *all* of those
projects have been basically on hold.
Now, if this works out, that pretty much opens the door to
trying out the sculpting and designing.
So..I got my hands on a part that I want to try, and am giving it a go. First off, yes, it’s a re-cast of the original TimberWolf. I’m justifying the recast in 2 ways: first, this is a one-off and the part will not be available to anyone else. Second, the whole reason I’m doing this is so I can carve the thing up and custom build a cockpit into it. The original piece is a solid chunk of resin and it doesn’t lend itself well to the design. I’m hoping to cast this hollow, or mostly so, leaving me a much more reasonable task to carve in the space and build out the cockpit. And, if it all fails, I haven’t destroyed the Mk-I Timberwolf.
So..I got my hands on a part that I want to try, and am giving it a go. First off, yes, it’s a re-cast of the original TimberWolf. I’m justifying the recast in 2 ways: first, this is a one-off and the part will not be available to anyone else. Second, the whole reason I’m doing this is so I can carve the thing up and custom build a cockpit into it. The original piece is a solid chunk of resin and it doesn’t lend itself well to the design. I’m hoping to cast this hollow, or mostly so, leaving me a much more reasonable task to carve in the space and build out the cockpit. And, if it all fails, I haven’t destroyed the Mk-I Timberwolf.
And thus it goes. I made up a mold space from a
bottle. Coated the part with Mold-release 200 and then packed clay around
it. I used the clay and newspaper to fill space. Future
reference, I think I’d rather use cardboard rather than try to do this
again. It’ll be easier to work with. I mixed up the smooth-on
30 and gave it a pour. Then, just to help matters a little, I put a
cone on top of the mold space and pulled a vacuum a bit to help get some of the
bubbles out. I may not have given it enough, but we’ll see.
Round 2 is tonight.
Round 2 is tonight.
Thursday, April 17, 2014
And we're off.
Who am I? That’s not so easily answered. Like
most folks, I have all kinds of facets to who I am and things I like to
do. For the purposes of this blog, I am “Mal the modeler.”
I’ve been building models since I was young, as it was the best way to exercise
my creativity at the time. I’ve always been enamored of “accuratizing”
“accurizing?” “making more accurate” model kits, and that expanded into
kit-bashing models that existed in my mind’s eye. I’ve done
militaria, cars, and planes, but sci-fi has always been my first
love/passion. Star Trek, Space1999, Star Wars, Galactica, anything
that had cool looking hardware; the more realistic the better.
Incorporated into this now is Battletech, Warhammer and Warhammer
40k. The grimdark future sure has some fun modeling potential.
These days there are all kinds of options available for
making new and interesting things, but I still prefer the razor knife, glue and
greenstuff.
I started this blog so I had a place to both document my “on
the bench” things and also nudge myself along to keep building; without filling
up the faceyspacey world. Let’s face it, faceyspacey is a big town
square-like space, and I really don’t need to put these creative things out
there. This is my little space of thinking, planning, designing
and..well.. playing. Because for me, engineering, designing and
building really is playing.
I have a few new and different things I want to try.
One of which is custom sculpting and casting. I keep looking at
things that folks have done, and keep wanting to try. I need to quit
wanting and start doing. I have a few ideas on what:
1)
28mm Atlas. The MechWarrior’s
super-ride. 100 tons of walking badassness. I have a
Timberwolf Mk II on the way, and this would go great as a companion
piece.
2)
28mm Jenner. This is a personal favorite.
Yeah, it’s a light ‘mech, but it’s the one I prefer to drive in
MWO. 4ML’s, 2 SSRM packs and 152+ kph of pure annoyance.
3)
28mm Warhammer. The great
unseen-one. I think the reason for liking this one goes without
saying.
4)
28mm 40K Inquisitorial Warhound. I love
Titans. Can’t play with them often, but have always liked the look of the
40K “Battlemechs.”
Yeah, doing them all at 28mm,
which is roughly 1/60. (1/58, I think). It’s a nice scale and it
goes well with the 40K hardware. It’s not a common one, so the
really cool “kits” of the standard-interest stuff are out of scale, but that’s
fine. It’s nice to do something different.
I’ve also got a Timberwolf, Mk II on the way. At
the very least, there’ll be a cockpit. I’ll have to see how the kit
goes together to decide how much more I may want to do to it. It’s
one of the few Clanner ‘Mechs that cut a silhouette that I like.
Impressive, imposing, menacing. Like the Warhammer.
So.. here begins the blog. Off I go. Let’s see
where I end up.
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