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Trooper TK409 Profile
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*Official* Arms & Hands Thread


quote:

Trooper TK409 wrote:

Among other things I'm really trying to figure out what to regarding pistons. All I have now are solid resin ones. Do I need to actually make functioning pistons? The back of the biceps and the tops of the forearms have slots in them that allow the pistons to slide back and forth. Anyone have any ideas on working pistons?

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I've been wondering how the pistons actually attach on the arms - how they slide along the slot. Is there a track inside? Here's how I would do it, but does anyone know for sure how it works? Obviously I didn't draw the bicep and forearm completely - I'm just focusing on the slot and it's function regarding the piston.

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Cool! I've updated the drawing above. You should be seeing 3 views of each piston.

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I posted these at the RPF too. These measurements are taken from the pistons pictured below. Just for reference, below is what these pistons look like on our 3po. Ours are fiberglass.

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Just got this from Don Bies himself:

Arms
TK: How do the arms stay in place without sliding down onto the hands. Are
they suspended somehow?

DB: At the back of the hand, a ledge is molded into them that the wrist area
of the arm sits against. They are not suspended and are only held up by
the hands.

---------------

Apparently, the hand has a notched ledge. I think the same effect could be reached with foam mounted in the arms to make them fit tighter on your arms to keep them from resting on the hands - thus allowing the hands to rotate freely.

For attaching the pistons to the arm mounts, I used floral wire available at the craft store. Put it through the hole and twist, it's virtually invisible when you see the whole outfit together.









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- Chris Bartlett
6/2/2007, 2:51 pm Link to this post Send Email to Trooper TK409
 
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Re: *Official* Arms & Hands & Fingers Thread


quote:

Trooper TK409 wrote:

These photos are of all ANH 3po hands. In ESB they went
 with a flexible handplate, but in ANH it was noticeably
 stiff. Also, in all of the ANH publicity shots, 3po's
 handplates did not have the little pistons. And his ANH
 finger rings were made of heavy brass pieces. Trivial, I
know. emoticon

I may have to make my hands and fingers from scratch.
I'm forming my handplate form from MDF wood and
bondo and I hope to vacuform over it so I may end up with
an ANH-type hard handplate rather than a flexible one.

Don Bies said he tried to do vacuformed fingers but he
didn't like how they came out. I may try it as well. Since
I'm going AOTC it can look messed up anyway.

Anyone have any ideas or other hand observations?


Image
Image


Just a note here, Akira cast all his fingers and finger tips from the DP statue. For his left 3po hand, he cut off the "knuckles." Then he mounted them to rubber finger midsections for better flexibility. This could be a good way to get the wrapped finger effect. I don't know if he used hoses or what, but for an Ep2 C-3PO from 3 feet away, who would know?

http://www.jeffcohost.com/~tk409/c3po/fanmade/Akira2/









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- Chris Bartlett
6/2/2007, 3:01 pm Link to this post Send Email to Trooper TK409
 
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Re: *Official* Arms & Hands Thread


quote:

Trooper TK409 wrote:

Thanks to some amazing photos taken by Braks Buddy at the FIDM exhibit, I was able to do a diagram and measurements of the hand pistons.

Image





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- Chris Bartlett
6/2/2007, 3:06 pm Link to this post Send Email to Trooper TK409
 
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Re: *Official* Arms & Hands Thread


quote:

Trooper TK409 wrote:

This is my first attempt at the hands. I used glove liners (found at a backpacking store) because they fit nice and tight. I sewed velcro to the backs to hold the handplate on. I hot-glued the wires to the backs of my fingertips then wrapped over the tip and down to the palms, and hot-glued them to the palms. Then I cut out small squares from "for sale" sign plastic and hot-glued them over the wires and to the palm. I've since found something better for the squares: gold square brads

I've got to replace the pistons with a more accurately-sized set (smaller) which I'm having machined now. I'm not 100% happy with the palm squares, but they look nice when you see the entire costume - better than plain black hands anyway.

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.






Last edited by Trooper TK409, 4/2/2011, 8:52 am


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Re: *Official* Arms & Hands Thread


quote:

D3po2 wrote:

Here's a scan from Steve Sansweets book, Star Wars from Concept to Screen to Collectable

Shows the pistons nicely. emoticon

 Image





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- Chris Bartlett
6/2/2007, 3:25 pm Link to this post Send Email to Trooper TK409
 
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Re: *Official* Arms & Hands Thread


quote:

D3po2 wrote:

Hi Chris and All,
Here's a solution to the pesky hand squares.
I found these in the scrapbooking section at Joann fabrics, and have seen them at Michaels as well.

Image

Oddly, the Round version is available in Gold, but not the square. Hmmmmm.
Image

They are metal, and look pretty good, right?

Image

I used a thin wire, from a telephone cord, and it slides underneath the prongs. Then you push it through the fabric and bend the ends to stay in.

Image

There is a piece of 3mm foam on the inside of the glove, with small holes punched in, to act as a guide so they stay straight. emoticon





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6/2/2007, 3:26 pm Link to this post Send Email to Trooper TK409
 
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Re: *Official* Arms & Hands Thread


For making display hands...

quote:

Floridarobot wrote:

I found the foam wires at an autoparts store.

I bought 2 sets of KwikTwist Giant wire/Foam twist ties and they worked excellent for fingers. Perfect size and I used the excess (after forming the fingers) to extend into the arm. A mini bungee cord holds his hands in place (one end clipped on the pvc skeleton at the top of the arm and the other clipped to the tk409 palm piece. Very simple, easy to remove and pose.

I used large strips of velcro to hold on the shoulder bells.

Here's a link:
http://www.kwiktwist.com/Home.html





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Shredder565 Profile
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Re: *Official* Arms & Hands Thread


Image

ok all, apologies for reviving an old thread, but I am trying to figure some things out here.....

I'm just loosely putting together the arms so they all fit right. here it is gently balancing on r2 for a quick photop. nothing but the wrongly positioned pistons are in place yet.

But,for a display piece, what is the best way to attach the fingers tothe hands, hopefully without drilling being done? I am trying to do as little drilling as possible for stability......and any drilling thatis done will have golden set screws in the final piece to try and hide it.

i am currently slowly scrolling for build threads as well...
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starbuckcylon Profile
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Re: *Official* Arms & Hands Thread


Maybe be get a black glove stuff it with something and use cloth hanger wire to bend the fingers in to shape.


http://www.ebay.com/itm/New-11-Wooden-Artist-Manikin-Male-Left-Hand-Artculated-Art-Class-Mannequin-New-/130745992726#ht_2959wt_1174


 

Last edited by starbuckcylon, 4/7/2015, 2:45 pm
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pan3po Profile
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Re: *Official* Arms & Hands Thread


Make a PVC or ABS pipe skeleton for the parts to hang on. The hand costume parts could be slipped over a flat piece of 3/4" thick wood. The wood could be screwed and attached to the end of the ABS arm pipe.
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