The issue with oral capable heads

Begog · Post by **Begog** » Mon Oct 03, 2016 11:27 am

I have an RD2. I used her ONCE for oral and got a mouth tear. Although it was glorious, never again because of risk or damage. I also have 3 TPE heads, 2 of which have been used for oral. The #46 works great, but her eyes do bulge. No damage with plenty of lube. The #86 also works, but she has taken some internal damage despite plenty of lube. Her eyes REALLY bulge out, and usually winds up cross-eyed after oral. No problem, though. She just needs a bigger cavity, but her head is small and eyes are beady. Her mouth is open enough, and no external damage, but the body used for this is having neck issues, directly related to oral use. The neck design remains the weak link in these dolls.

rubherkitty · Post by **rubherkitty** » Mon Oct 03, 2016 11:38 am

Something to remember.
TPE is cast as a very hot thin liquid and silicone is a thicker cold pour. Much easier to include plastic teeth, connectors, etc in silicone. Silicone can be cast around these items for permanent embedment or glued in.

Asterix · Post by **Asterix** » Mon Oct 03, 2016 5:35 pm

ttdjderek2 wrote:I keep repeating this in every post about this............One more time, TPE stretches and DOES NOT TEAR easily. Doll makers would only have to make the INSIDE of the mouth more hollow for a better 'sloppy' blowjob. No need to change the lips at all!!! I get BJ's from my TPE dolls ALL the time and they haven't torn yet!!

I agree with you, should be an easy fix to enlarge the mouth inside.

Why is that so difficult ?

Regards

Asterix

Post by **Dollstudio** » Mon Oct 03, 2016 5:58 pm

Asterix wrote:[…] should be an easy fix to enlarge the mouth inside. Why is that so difficult ?

There is not enough space in a head with the common design.

Here is an illustration from DS which demonstrates the problem:

: Doll Sweet oral head / Image courtesy of dsdoll.us; ds-oral-head.jpg (13.39 KiB) Viewed 2220 times

On the bottom, you have a cylinder for the neck connector, or a thread in TPE head. That part is enclosed in a foam core (silicone heads) or a fiber glass core (TPE and ZO heads). It's length and diameter determine the angle, length, and width of the oral canal in the common design.

Also, for more room inside, you'd probably have to integrate a venting hole to avoid the balloon effect, and/or a wider mouth opening. Both is not widely considered desireable.

Sandro

ttdjderek2 · Post by **ttdjderek2** » Tue Oct 04, 2016 12:59 am

Yes Manobon, I have that magic eyes oral toy. It gives by far the closest BJ to a real woman

. If they put that in a dolls head I would order one today

ttdjderek2 · Post by **ttdjderek2** » Tue Oct 04, 2016 1:06 am

Doll Studio, Just take some of the TPE material, just inside the mouth and leave the rest alone...like a real woman

Post by **Dollstudio** » Thu Oct 13, 2016 10:31 am

Hi,

this is the core of a typical head with the common TPE design:

: Core of common oral head design; DSC03759.JPG (398.84 KiB) Viewed 2132 times

: Core of common oral head design; DSC03760.JPG (366.99 KiB) Viewed 2132 times

: Core of common oral head design; DSC03761.JPG (378.85 KiB) Viewed 2132 times

: Core of common oral head design; DSC03762.JPG (371.76 KiB) Viewed 2132 times

: Core of common oral head design; DSC03763.JPG (379 KiB) Viewed 2132 times

The material used for this core in unknown. I believe it's fiberglass, also known as fiber-reinforced plastic or glass-reinforced plastic (GRP).

The weight of the core is approximately 340 g, including the M16 threaded sleeve.

This common design is used - as far as a I can tell - by all TPE doll makers, including WM/YL/OR/JY/MA/JN etc., as well as Z-Onedoll (for silicone dolls with the same base design).

The alignment and depth of the cavity in the middle is determined by the position of the M16 thread which is anchored in the core.

Sandro

hollows+fentiman · Post by **hollows+fentiman** » Thu Oct 13, 2016 11:50 am

I haven't tried my new WM168 Nava head to date but the canal seems to go off to left of centre of her head!

Post by **Dollstudio** » Thu Oct 13, 2016 12:34 pm

hollows+fentiman wrote:I haven't tried my new WM168 Nava head to date but the canal seems to go off to left of centre of her head!

She is such a beauty, and I probably couldn't "use" her this way, either

Yes, within this common design, manufacturers seem to have some room for variations.

This is how the oral canal of the head that I dismantled looks like:

: DSC03745.JPG (443.9 KiB) Viewed 2125 times

Above is a view inside the head with the core removed.

: DSC03746.JPG (582.28 KiB) Viewed 2125 times

Above is a view at the end of the oral canal which leads directly onto the GRP core. On the inner sides of the surface material, there is residue of a cristallized hard glue, probably something based on some cyanoacrylate (like crazy glue or some nail glue). In this case, the bottom end of the oral canal is completely unsealed and I have no idea how someone is supposed to clean that up.

Since I'm not dismantling every head, I can only judge what's at the end of this canal in other heads based on what I see with the endoscope during an inspection. Sometimes there is just some TPE residue scattered around which you can outpop. I have already posted a couple of endoscope pictures in other threads, but as far as I can tell, the oral cavity is never sealed at the end in heads with this common design.

Bulging-out or even popping-out eyes might be caused by the alignment of the oral canal - the closer it is to the eye sockets, the more eye-bulging might occur.

Sandro

hollows+fentiman · Post by **hollows+fentiman** » Thu Oct 13, 2016 1:18 pm

Thanks Sandro, that settles it, I'm not even going to try even out of curiosity!

rubherkitty · Post by **rubherkitty** » Thu Oct 13, 2016 2:47 pm

What do the masses want? Doll on knees or 69? Guess I need to set up a poll.

Begog · Post by **Begog** » Fri Oct 14, 2016 8:56 am

hollows+fentiman wrote:Thanks Sandro, that settles it, I'm not even going to try even out of curiosity!

Why not? TPE dolls work great for this, and heads and even whole dolls are cheap. My #46 works great and I still use my #86 as well, despite some minor internal damage. She looks fine externally. This adds another part is sex missing in most dolls. Feels good too. I'd at least try it.

rubherkitty wrote:What do the masses want? Doll on knees or 69? Guess I need to set up a poll.

Dolls on knees!

However, knee damage is a very likely outcome. Fun, though! :drinking:

Maybe some padded doll knee pads? LOL!

Post by **Dollstudio** » Fri Oct 14, 2016 9:38 am

Begog wrote:Why not? TPE dolls work great for this, and heads and even whole dolls are cheap.

No, they are not cheap. Especially not over here, where customs charge ~30%-35% on top of the item's price plus shipping.

YMMV.

Sandro

ttdjderek2 · Post by **ttdjderek2** » Fri Oct 14, 2016 10:42 am

My doll has knee pads

Begog · Post by **Begog** » Fri Oct 14, 2016 10:57 am

Dollstudio wrote:
Begog wrote:Why not? TPE dolls work great for this, and heads and even whole dolls are cheap.
No, they are not cheap. Especially not over here, where customs charge ~30%-35% on top of the item's price plus shipping.

YMMV.

Sandro

Compared to my Real Doll or unnameable, they ARE cheap, i.e. 1/4 the cost. A new TPE head costs around $325 USD. For some, that may be a lot. For others, it is chump change.