Broken back repair on my Sabrina doll
Re: Broken back repair on my Sabrina doll
- roninfiertze
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Re: Broken back repair on my Sabrina doll
JB Weld doesn't always bond well to polished metal, you'd want to rough it up pretty good with low-grit sandpaper first. I've used an excessive amount inside a doll to modify the spine before when attaching a tail, and it popped right off the metal from very little force after a few days because I didn't rough up the attachment point enough first.Dollarhyde wrote:Excellent repair Siliconeman thanks for sharing... question? Could you have used JB Weld to make the repair even stronger then the original weld?
Katie - WM 145cm head #1 - 2014
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"Anthro Project" - HappyDoll 100cm TDF banned - 2017
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Re: Broken back repair on my Sabrina doll
- Siliconeman
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Re: Broken back repair on my Sabrina doll
I have another patient on my table(or couch). I just bought very nice looking Piper with broken back. This time there is a one single broken connecting bolt. This bolt connects lower part to upper torso. I think I will inspect the possibility of making a tubular sleeve to reconnect the halves. May require some lathe work! Any other suggestions welcome.
Please inspect the images.
Skeleton at the picture below is not the Piper skeleton but shows which bolt is broken Cheers!
Sili
Re: Broken back repair on my Sabrina doll
So far I have not seen any need for lathe work for this type of repair
A Tee split into 2 halves and clamped around the break is usually enough to make it one piece again
Does remove the bending capability though
Another method involves these marine fittings Making a new section involves a spot of welding but will restore the ability to bend Will probably need to be modified for your doll repair
Re: Broken back repair on my Sabrina doll
Sorry about the rabbit hole excursion...
Re: Broken back repair on my Sabrina doll
Most of the time it all comes together, and sometimes it doesn't
Re: Broken back repair on my Sabrina doll
BTW, drilling stainless requires a different angle on the bit usually 130-135 degrees. Stainless is not so much harder it just creates more friction which builds heat.
And don't forget you are drilling hardened metal from the welding process when the doll was put together. So the cheepo drill bits need to be avoided (spend 5-10 bucks on a good tool steel bit).
Spraying some soap and water on mild steel is a great way to go, don't need a lot, you will be surprised how fast the bit will cut.
I know I know - the rabbit hole again...
Re: Broken back repair on my Sabrina doll
- Kaori Kusanagi
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Re: Broken back repair on my Sabrina doll
It can also work-harden, making it very difficult to drill, though if it's thin it probably won't be an issue--but as you say, a *good* bit is much more likely than a cheap one to work.catdaddy wrote: Stainless is not so much harder it just creates more friction which builds heat.
- blimpbiscuit
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Re: Broken back repair on my Sabrina doll
I have an smdoll with a skeleton issue as well, only on her arm/shrugging shoulder than the spine.
I contacted the manufacturer and they provided a picture of the skeleton; they claimed a weld may be necessary but I'm hesistant to even open up my doll let alone weld near it.
I marked the areas that I believe are loose.
Any tips on diagnosing the issue/making a fix? I imagine limb repair can be simpler than the back but I'm completely new to this sort of maintenance.
- Kaori Kusanagi
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Re: Broken back repair on my Sabrina doll
You can usually feel pretty easily thru the shoulder TPE to find the exact break location, just don't push super hard or a sharp edge may cut into the TPE from inside. Once you know where the break is, you can post a pic showing that, and we can help you work out potential repair methods.
Re: Broken back repair on my Sabrina doll
The Silicone gets difficult only if you cut into a foam core
- Siliconeman
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Re: Broken back repair on my Sabrina doll
Back to Chanels back repair (pictures at my previous post see above)
I had to break welds and remove a bracket at her lower part. I made couple of cuts to the weld with dremel and cutting disc and with big enough tools the weld broke. I found out that there is square metal piece with 10mm diameter hole for connection to upper torso.
At the picture below broken removed bracket and some aluminium stock which will be used to fabricate the replacement part.
After some milling and turning the bracket is ready. A simple plastic pipe will be attached to the upper part of the bracket and upper torsos central pipe which acts as her main spine will slide into the tube.
One 10mm x 50mm bolt is used to connect the fabricated bracket to lower part. I adjusted tension with a washer and by tensioning the nut to proper tension. I used nylock nut which should not loosen by itself.
You don´t see this every day:
She should be better now! Next I should clean and close her wounds and then clean her again. I hope she will be well, she is a stunning doll.
Cheers!
Sili
Re: Broken back repair on my Sabrina doll
The spotting might be a bit fiddly to clean off but still