How about a carbon fiber skeleton?

Photo_guy · Post by **Photo_guy** » Sun Feb 26, 2023 8:06 am

RevJack wrote: ↑Sun Feb 26, 2023 12:01 am Not just the joint flexibility and durability, but the significant and consistent resistance that the joint must provide so they aren't all just rag dolls.

Good point.

Luiskjr · Post by **Luiskjr** » Sun Feb 26, 2023 8:36 am

Speaking of skeleton, this photo shows the factory man demonstrating how soft the doll is...

wait... it shouldnt be softer there. Thats the upper chest and is hard, an armored place full of bones

why spoil precious expensive soft silicone on a place it should be plain hard?

4891d · Post by **4891d** » Sun Feb 26, 2023 9:58 am

Luiskjr wrote: ↑Sun Feb 26, 2023 8:36 am Speaking of skeleton, this photo shows the factory man demonstrating how soft the doll is...

wait... it shouldnt be softer there. Thats the upper chest and is hard, an armored place full of bones

why spoil precious expensive soft silicone on a place it should be plain hard?

+ 1 !
Yes, it would be a big improvement to harden the hard parts (rib cage, shoulder blades, pelvis) while keeping the soft parts soft. If it also allows you to gain weight, that would be ideal.

RevJack · Post by **RevJack** » Sun Feb 26, 2023 11:02 am

That's what the silicone dolls do, they use a firm foam core and silicone skin.

TPE isn't done that way due to the heat of TPE when it is poured.

4891d · Post by **4891d** » Sun Feb 26, 2023 12:17 pm

Some brands (two that seem to share bodies with XY and another competing brand) offer very light TPE models (sometimes much more than their silicone versions). So I guess they managed to include light foams despite the high molding temperature.

Customer feedback on one of the brands seems positive, I look forward to reading feedback on the other brands including XY.

But their internal foam parts don't really mimic a skeleton (they aren't angled at all); if the manufacturers find techniques to progress in this direction that would give a good potential to accentuate the realism.

Anung Un Rama · Post by **Anung Un Rama** » Mon Feb 27, 2023 9:54 pm

I have had a lot of PMs asking me about what makers are doing this exact thing.

So far DSDOLL(EXDOLL) has experimented with polymer frames for their robot chassis and earlier lines, but never Carbon Fibre.

Realbotics is looking to develop this for their future robotic lines, but so far are still at prototype design level.

My answer is go for it, if you build it they will come.

And you would be the market leader in the industry.

Anung

informalproblem · Post by **informalproblem** » Mon Mar 06, 2023 1:11 pm

I would say, if the cost isn't that different, then go with carbon fiber. When I go hiking, I prefer my carbon fiber walking sticks, over others. I like the idea of a strong product with less weight. Any improvement to a skeleton is a huge bonus, especially the joints.

The Doll Advocate · Post by **The Doll Advocate** » Mon Mar 06, 2023 7:30 pm

Out_Of_Sync wrote: ↑Mon Feb 20, 2023 6:51 am
Luiskjr wrote: ↑Mon Feb 20, 2023 6:05 am depends on what the weight percentage of metal skeleton

I reckon silicone mass makes up most of the weight.
That's a question I've always wondered about. How much of the weight of the doll is the skeleton and how much is the TPE or Silicone? Perhaps you could let us know the answer XY.

Thanks!

OoS

Doll Weight is 95% meat.(tpe or silicone)
A dolls metal skeleton weighs 10 to 15 lbs max.
Carbon fiber or fiberglass would save about 30% of that weight and increase construction costs
Making your 60lb Doll weigh 55lbs but cost $200 more.

Post by **XTDoll** » Mon Mar 06, 2023 9:09 pm

trauma wrote: ↑Fri Feb 24, 2023 5:11 pm When I "disassembled" my doll(166cm) the skeleton was surprisingly light weight.

The chunks of TPE weighed a ton though, really heavy stuff.

I would imagine you would gain marginal weight savings from a carbon fiber skeleton and drive the cost of a doll through the roof.

What kind of doll is this? A ton of weight that amazes me.

Out_Of_Sync · Post by **Out_Of_Sync** » Mon Mar 06, 2023 9:19 pm

XYDOLL please tell us the weight of the TPE and the weight of the steel skeleton for one or more of your dolls so we can decide.

In that doll, how much weight would be saved by switching to carbon fiber? What would the additional cost be? Thanks!

Post by **XTDoll** » Mon Mar 06, 2023 9:23 pm

Seek better quality lining to reduce silicone or TPE material, or just a very thin layer of skin.

Out_Of_Sync · Post by **Out_Of_Sync** » Mon Mar 06, 2023 9:32 pm

XYDoll wrote: ↑Mon Mar 06, 2023 9:23 pm Seek better quality lining to reduce silicone or TPE material, or just a very thin layer of skin.

So, are you saying that the most important element to weight reduction is to minimize the quantity of TPE or silicone used?

seagull · Post by **seagull** » Mon Mar 06, 2023 9:44 pm

RevJack · Post by **RevJack** » Mon Mar 06, 2023 10:08 pm

Out_Of_Sync wrote: ↑Mon Mar 06, 2023 9:32 pm
XYDoll wrote: ↑Mon Mar 06, 2023 9:23 pm Seek better quality lining to reduce silicone or TPE material, or just a very thin layer of skin.
So, are you saying that the most important element to weight reduction is to minimize the quantity of TPE or silicone used?

YES, it's that simple.

Post by **XTDoll** » Tue Mar 07, 2023 11:03 am

RevJack wrote: ↑Mon Mar 06, 2023 10:08 pm
Out_Of_Sync wrote: ↑Mon Mar 06, 2023 9:32 pm
XYDoll wrote: ↑Mon Mar 06, 2023 9:23 pm Seek better quality lining to reduce silicone or TPE material, or just a very thin layer of skin.
So, are you saying that the most important element to weight reduction is to minimize the quantity of TPE or silicone used?
YES, it's that simple.