QUICK ANSWER:It sounds like the neck joint part of the chest piece (inside the vinyl of the neck) may be bent to one side and is not lining up with the neck piece when inserted in the neck vinyl. Look in the top of the neck and verify that the neck attachment part is centered in the vinyl, pointing straight up towards the top of the neck. If it isn’t you can squeeze the neck and move the attachment to center it as shown below.
Grasp the head and neck piece assembly and fit the neck piece into the top of the neck vinyl. Gently push the head/neck piece down till it encounters the neck attachment. You might have to wiggle the head/neck piece around a little to get it to seat properly on the attachment. Once you feel the connection is made you can push the head/neck piece down the rest of the way.
THE VERBOSE ANSWER:Kittywolf13 wrote:So I just ordered a 40 & 49cm girl body to go with my 50cm body. (I also have an old style 45-50cm obitsu body in the mix with the round joints but my concern is with the others.)
All the 40cm through 50cm Obitsu (and Parabox/Obitsu) bodies use essentially the same parts. The difference being the length of the "bones" between the joints. In the smaller sizes some of these bones are molded directly to the joint part, hence the different leg parts shown on the Parabox site. The 40cm through 47cm and 49cm parts are made by Obitsu for Parabox.
First I can't seem to get any neck piece to work with any doll. Second I can't seem to swap heads like I originally thought I could? I have a Luna head, an old sleeping princess head, misuzu, mizuki and kanna head. They are all listed under the same sizes... I can't seem to get the neck piece whether with heat or force. And once on they don't seem to fit on the neck piece of the body at all. I'm really frustrated and not sure what to do.
There are 2 versions of the new style neck piece and their difference is their length. If you bought a 40-50cm body from Parabox it should come with the shorter version of the new style neck piece. The longer new style neck piece is made for 55cm, 60cm, and 65cm bodies.
This image shows the relative length of the two neck pieces.
If you're having trouble getting the neck piece in the head, check out this tutorial:
viewtopic.php?f=32&t=66If you're having trouble getting the neck piece to seat in the body (neck vinyl), check out this tutorial. This second tutorial is about replacing chest/bust parts but it does detail head removal and replacement.
viewtopic.php?f=14&t=1432You should be able to swap heads easily enough just by pulling the neck piece/head off of the body. As always I recommend having a separate neck piece for each head you wish to use and leave that neck piece attached to the head. The new style neck piece will hold the head on very securely but can be a real pain to attach properly. You can save yourself hours of frustration by leaving a neck piece attached to each head.
If you are having a different issue, please PM me.