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Post by sgtcarida on Oct 2, 2007 19:20:49 GMT -5
What can I say but superior workmanship on this one SGB! I already rough cut the eyes out. I'd have this done in a few hours if I had the time to put into it tonight!   |
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Post by DarthTuapawa on Oct 3, 2007 3:27:50 GMT -5
Congratulations on a great looking helmet sgtcarida!!!
Just out of curiosity, is the GM V2 made out of resin, or fiberglass like the V1?
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Post by admin on Oct 3, 2007 12:21:51 GMT -5
That looks like a V1 sgt. The v2 has more distinctive, more accurate eyes and face sections. But I'm not even sure if he's cast his v2 yet. You may have just gotten a v1 that was cast in what looks like rotocast material. I that's the case, then you can call it a v1.2.  I'm always glad to see future Marines getting their lids. It's such an exciting moment! Anyways, have fun with it! And don't plan on seing much out of it. |
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Post by sgtcarida on Oct 3, 2007 14:12:00 GMT -5
LOL! I thought he told me that the V2 was coming? Anyway it looks really good. The eyes are really scuplted out as is the cheek area. I think the nose area has more of a bridge then what I've seen on the V1 buckets? I could be wrong here.
I don't think it is fiberglass. It is too soft and the eyes cut out too easy to be fiberglass. It's going to be very easy to cut and trim the rest of this so it can't be fiberglass.
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Post by youngling on Oct 5, 2007 20:25:40 GMT -5
I can tell you what it is made of. It is made of fiberglass it just made of a kind called Smooth Cast ROTO. It is extremely soft and flexible but much more enduring than a vac formed helmet. Do be careful though it will warp with heat.
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Post by admin on Oct 6, 2007 2:02:26 GMT -5
Preston, you must be mistaking "fiberglass" for "resin" because fiberglass is not soft or flexible. Fiberglass is what boats are made out of, and it's sort of a piss-yellow color, you can't mistake it.
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Post by youngling on Oct 6, 2007 12:24:14 GMT -5
HMMMM! You might be right there. Infact that makes sense because fiberglass is reinforced with fiberglass fibers in it when resin is just... Anyways Ya I think you are right Captain that makes sense. Well It is Smooth Cast ROTO that is for sure I can tell that.
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Post by Anrev on Oct 6, 2007 15:57:25 GMT -5
"Smooth-Cast ROTO tm is a low viscosity liquid plastic that gradually builds thixotropy (becomes thicker), making it
ideal for rotational casting applications. Castings will be hollow and lightweight but have the appearance of being
solid, allowing you to use less material to attain the same finished look (substantially lowering your material costs).
ROTOtm can also be cast solid for a variety of industrial and art-related applications.
Fully cured castings are semi-rigid and exhibit good impact resistance. Castings resist moisture and mild solvents and
can be machined, sanded and painted. Color effects are possible by adding SO-Strong tm color tints. ROTO tm is ideal
for making hollow rotationally cast parts. "
Fiber glass is white or clear. Its the resin used to bind the fiber glass thats gives fiber glass its color. Yellow or what ever.
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Post by sgtcarida on Oct 8, 2007 15:37:31 GMT -5
It is pretty flexable so I'd say Roto Cast for sure. If it starts to warp at all I'm going to re-inforce it with fiberglass. It'll KILL me to do it because SGB smooth the inside really well.
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Post by skygunbro on Oct 9, 2007 14:51:20 GMT -5
What this is a a new method I have been toying with.
This helmet is indeed smooth cast roto but i mixed in some fine fiberglass chop in the in layers of resin.
Roto is a great material to cast with it is very strong.
The heat factor is not an issue as it recommends not to expose to temps over 85-90 degrees F but that is if the casting is only 1/16th -1/8th inch thick the thicker thacasting the more heat resistant it is. Also with the fiberglass chop added it will further help hold its shape under high heat conditions.
But I wouldnt leave this or any other helmet for that matter in your car on a 90 degree day where temps in the car will reach in excess of 130 any resin or fiberglass for that matter will start to degrade.
Also you got the last GM helmet as the roto resin I found does NOT shrink like the fiberglass resin does so it didnt pull away from the mold like it does with the fiberglass/ployester resin does so the mold was destoyed when I pulled your helmet.
I may make another mold but I would rather put my time into the V2.
If you feel you need to reinforce it which I dont think you will as I casted the dome falir pretty thick you can use FG resin and matting.-Jason
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Post by Anrev on Oct 10, 2007 4:00:15 GMT -5
And Ill bet he wont have to worry about it cracking if you drop it.
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Post by sgtcarida on Oct 10, 2007 7:15:40 GMT -5
Jason....WOW! What can I say Vod? Thanks for doing something different AND ruining your mold for little old me:-) Now I won't be as worried about the heat knowing that there is some fiber in it. The bucket is killer and I'm happy to have one of yours.
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Post by youngling on Oct 16, 2007 10:16:51 GMT -5
Oh Jason that is sad that you had to ruin the mold. But yes indeed this stuff does not shrink at all. And just so you guys know I wasn't trying to make the heat factor a big deal. I am just saying that if you leave it in hundred degree weather it will warp. Also another thing is keep it in a seperate tub than where you are going to keep your armor. I left mine sitting in the same tub as my armor for a week and the side on the bottom flattened and I had to reshape it. Once again not a malor problem just a few side effects of using ROTO.
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Post by youngling on Oct 16, 2007 10:18:39 GMT -5
Almost forgot to ask Jason are those sluch cast or do you have a ROTO machine?
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