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completed model went through several design changes,
including replacing the main battery barrels (originally
composed of PVC sprinkler fittings) with new ones turned
out on a lathe. The finished model, though impressive,
was not close enough to the original to suit Dave (as
shown in the comparison photos with the MK V miniature).
In particular, the main battery turrets (made from glass
light globes) were deemed too large (and too subject to
breakage). The tower shape was also judged too thin.
Also, the articulation between the front and rear hull
made the model difficult to pick up and move. Dave and J.P. then
began work on a new model using the rear deck of the
existing Ogre. The forward section was completely rebuilt
using plastic sheeting to add detail to the hull. The
tread sections were built seperately (and were set aside
until the completion of the hull). The main and secondary
battery barrels were remade thicker. The entire face of
the forward section, including the main battery ball
turrets, were sculpted painstakingly out of modeling clay
so as to more accurately match the dimensions of the
miniature.
When the
upper hull was ready, a two part mold of latex rubber
backed up by a solid ceramic "sleeve" was
painted over the model. From this mold was created the
first resin hull. This new hull was much stronger than
the balsa/plastic prototype and was also easier to handle
as the rear and front sections were now fused into one
solid whole.
A total of three hulls were
"pulled" from this mold. Two for actual
construction into finished MK V Ogres, the remainder as a
"spare" in case of breakage. The hulls have
proven so tough, however, that no replacement has proven
neccessary. The hulls were detailed with additional
plastic plating. The treads were attached and PVC sockets
for the secondary battery barrels were attached to the
top of the hull. The main battery ball turrets had holes
drilled in them and sockets attached from the inside. The
missile caps were also inserted into holes prepared in
the silos on the rear deck. The new, thicker tower was
attached to the hull top via bolts. The antipersonnel
batteries (composed of ping-pong ball halves and model
part barrels) were glued on. The hollow interior of the
hull was filled (mostly) with two-part expanding foam to
increase strength. Finally the hulls were painted and
sealed.
The second model of the MK V Ogre was a
success with everyone comparing it to the Ral Partha
model favorably. At this point Dave, J.P. and myself
began work on a series of models to cover (most) of the
armor in OGRE/G.E.V.
Having
learned valuable lessons with the MK V model, we began
work on new hulls to mold. During the construction of the
prototype of the Ogre, we also experimented with
vacuforming the smaller vehicle hulls. This proved to
lack sufficient detail. The new models were scaled
precisely to the miniatures right down to the detail
lines. As each model was completed, its major components
were molded in RTV rubber. Once the molds were completed,
two-part gel resin was "painted" into each half
of the molds (up to three layers to insure a thick hull).
Then a final mix was poured into the mold after sealing
the two halves together with thick rubber bands. The mold
was then rotated to "slosh" the final
application of gel resin along the interior seam to seal
the model. When the resin was set, the two halves of the
mold were seperated and the finished hull piece
extracted. The hulls were then detailed and painted. The
models completed included: HVY, MSL, LT, GEV, HWZ and
SHVY tanks.
Some Notes:
The GEV's
"skirt" proved troublesome to replicate, until
I spotted a properly sized and shaped radiator hose at a
car parts store. By cutting the hose in half we had an
instant skirt for the master.
The SHVYs,
HWZs and CP were all scratchbuilt rather than molded like
the other models. The SHVYs were built out of plastic
sheeting and model parts. The HWZs were built out of PCV
sprinkler parts (barrel), wood and vacuformed plastic
(base), PVC piping and scribed plastic (gun carriage) and
alluminum pipes (hydralic lifts).
The
missiles for the MSL tanks were procured from model jet
craft kits.
All of the
models (with the exception of the SHVYs and HWZs) were
filled with two-part expanding foam to increase
durability.
Battlesuited infantry were easily recruited
from Grenadier's line of Space Rangers. The back packs
seemed strange to me, so I created new ones for the
models. the triangular stands were cut from 060 styrene
plastic in two layers.
The bottom layer was solid. The upper layer
had three holes cut into them at each end of the triangle
just big enough to accomodate the figure's bases. The two
layers were glued together and velcro glued into the
bottom of each hole. the figure's bases then had the
opposing velcro glued on. This allowed the infantry to be
stuck to and easily removed from the bases. The center of
each base had a small hole drilled into it and a plastic
pipe glued in. This allowed the bases to be picked up
easily during play.
What's next?
Right now, there are no plans to add to our own model
line. ARMORCAST is working on
masters for 1/60th scale Macrotures. It will be
interesting to see when they get around to the models we
never did (e.g. MHWZ, LT GEV, GEV-PC).
We would
like to add a MK III Ogre to our lineup, but this
currently seems unlikely because of RL getting in the
way.
 
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