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PatrickJ
Caped Crusader
Registered: 01-2005
Location: Salt Lake City, Utah
Posts: 5879
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
I sell those Prop Shots toys where I work. I've got a lot of experience playing with them. :wink
They rely more on the fact that the launcher spins the propeller on the toy than on any other force for lift. There's really no way I can think of to apply that to the grappling hook.
Last edited by PatrickJ, 2/22/2005, 6:22 pm
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Patrick
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2/22/2005, 6:21 pm
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clevelandfx
Caped Crusader
Registered: 01-2005
Location: Cleveland, Oh
Posts: 1891
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
yeah, not sure, but the blades on those spinny things create the lift until the slow down and autorotate down just like a real copter will.
Love it, looking good, and agree with pretty much everything in here.
I'd have to say that the line is probably something like spyderwire fishing line, or one of the other similar types, got breaking strengths up to at least 60 pounds and made of monofilament spectra line, what I was planning on using for mine. Assuming you could make a working one, or one to shoot, I'd have to agree with the nerf idea, planning an animated series grapgun, posted a link here a while back, with info on all the pneumatics. Since movies are all fake, don't expect to get more then a few feet of life that way. It'd be enough for a cool shot, but hardly real world version of fx lies. 
Nice job.
Tom
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My, my, my. Such a lot of guns around town and so few brains.
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2/23/2005, 3:46 am
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namtaB
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Registered: 06-2004
Location: Los Angeles, CA
Posts: 85
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
Yeah, because if you think about it, even if I were to get a working design going, spinning for a hook attached to a wire would be practically useless. The wire would get tangled and all screwed. As for the sculpt progress, I'm almost done (sand sculpting it right now). I should finish this afternoon and get some molding done. I have a list of about 20 raw plastics vendors in my area, so one of them should have what I need. Also, I found Bondo Fiberglass resin at the home depot and walmart. My question: is fiberglass resin just as good as casting resin? I will probably go the pigment route(silver), and will check out what the plastics store has.
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2/23/2005, 11:14 am
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Brin Londo
Keeper of the Cave
Registered: 02-2004
Location: Mississippi
Posts: 9351
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
Alumilite casting resin
Smooth-on casting supplies
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2/23/2005, 2:26 pm
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clevelandfx
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Registered: 01-2005
Location: Cleveland, Oh
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
straight polyester resin will be too fragile, the bondoglass bondo mixed with fiberglass strands is a little better, but more of a paste. the polyester resin really doesn't have any strength to it, it just holds the glass in place.
I would go with either a black tinted SC-325 or alumilite, and for the silver, I'd just dust the mold with an aluminum powder first, then after it's pulled take some steel wool to it and burnish it, makes it look like metal, then if you don't like the look you can always paint it.
Tom
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My, my, my. Such a lot of guns around town and so few brains.
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2/23/2005, 4:37 pm
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namtaB
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Registered: 06-2004
Location: Los Angeles, CA
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
Okay, I finally bought my molding and casting supplies. Smooth-on dragon skin is what I got for the mold, and I just got the standard plastic resin. Re-shaping (by sanding) the sculpt itself is taking me longer than I thought. I am pretty sure I will have it done by at least tommarow. I have spats, a belt, and this going on all at once, so they kind of overlap each other. The spats are going to be my first mold experiment, since it is a one-peice mold and should be significantly easier. Okay, so I have two questions: 1) The guy at the plastics place said that with the metallic (bronze) powder that he showed me, he would recomend that I apply a clear top coat to "prevent oxidation." would this be true with the alumilite powder? And, once I applied a dupli-color acrilyc topcoat to one of my belts, and the P.O.S. cracked when it was flexed! Any solutions? 2) Does anyone by any chance know the tensile strength of that weed-eating plastic?(about how many pounds of force can it hold?(a human body?))
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3/1/2005, 7:11 pm
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DAVIDYR1
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Registered: 02-2004
Location: UD Replicas
Posts: 3408
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
Hey great work buddy!!!!
Furthermore I dont think anyone else has ever done this...you'll be the first!
Keep us posted...I dig this little gadget!
David
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3/2/2005, 1:29 am
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clevelandfx
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Registered: 01-2005
Location: Cleveland, Oh
Posts: 1891
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Re: Batman and Robin gauntlet grappling hook (screen caps added!)
Quote:
namtaB wrote:
Okay, so I have two questions: 1) The guy at the plastics place said that with the metallic (bronze) powder that he showed me, he would recommend that I apply a clear top coat to "prevent oxidation." would this be true with the alumilite powder? And, once I applied a dupli-color acrilyc topcoat to one of my belts, and the P.O.S. cracked when it was flexed! Any solutions? 2) Does anyone by any chance know the tensile strength of that weed-eating plastic?(about how many pounds of force can it hold?(a human body?))
a couple things...but first your questions answered (to the best of my ability)yes, it'll probably oxidize in any resin, I'd recommend the clear coat. The dupli-color paint, we talking about the stuff used for cars on a rubber or cloth belt? If so, then that's your problem. That paint's not meant for a flexible surface. A few things I do with latex, tint it intrinsically, paint it with a flexible paint (for my "safety props" like bats I use PAX which is a mixture of pros-aide adhesive and liquitex acrylics, but there are other materials, some specifically suited for a particular product. I've got some props sitting here now years later that look just as good as they did once I clean the dust off.
it probably won't hold a human body...there are some thin spectra lines/cords out there used for holding things like rock climbing gear and such that get down into a couple of millimeters, but then you have to have a look into shock loading if you were thinking of trying to use it in a real world situation.
I've used the "other" version of dragon skin (Plat-sil 10) and did some tests on various clays and things I've used around the shop...watch out for sulfur (if you don't already know this) since platinum silicones HATE it, as well as other things. I recommend a test first so you don't end up with a big sticky mess.
Tom
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My, my, my. Such a lot of guns around town and so few brains.
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3/2/2005, 4:48 am
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