Help needed! - IG88 / Derwent casting issue.

[Electronic Lids]

Hey folks. I recieved this derwent casting from an artist about 5 years ago and have only just dug it out and want to finish it IG88 style.
When I did recieve it, the heat apparently had made the resin soften and it was actually flexible. In lieu of asking for a replacement at the time I want to try to correect the shape. It is most certainly somewhat oval shaped up through most of the bottom half of the piece.
I have since used a hair dryer on it to try to reshape it but it's kept that slightly oblong shape. My question is, what would you use to reshape it back to its circular base? I was thinking of heating it with SOMEthing circular inside it to help reshape it against. It's such an unusual with the taper shape I dont know what that item might be.
Alternatively I think a strong ring on the outside would work .. Knowing that the casting should be cut for the IG88 build, I was thinking of making this cut which would allow for easier access inside. I've looked about and found nothing on how people go about this or how the bottom pieces fits inside was seprarated. ANY help at this stage would be entirely appreciated.

14.05.2025_17.14.34_REC

Derwent warped casting

vimeo.com

 

[Electronic Lids]

Anuonje who has built an IG88 head, just looking to know how the bottom piece attached inside.

 

[Halliwax]

Idk if I would attempt to reshape it.. that resin looks thick.. if it were thinner I would try heating it with a heat gun

But I don’t think that would work in this situation..

 

[Electronic Lids]

It actually is quite thin, a hair dryer affects it. It's just trying to keep a circular consistency when it's malleable.

 

[PropReplicator2]

Try soaking it in hot water (a bath) for a bit. Then reshaping. I would not rely solely on a heatgun for this. It could simply make the resin brittle.

 

[laellee]

If you've got a 3d printer, I would print a few rings or ring sections (like quarter hoops on a barrel) and slip them on after heating to lock in the shape as it cools. I would think any large band-clamp could do the same thing (if you could find one big enough).

My other suggestion would be to draw the correct in-round diameter out on a piece of cardboard/card stock, heat the warped end up in hot water, and then set it down on the circle as a guide. Then throw a ratcheting bar clamp on the wide sides and crank it into round before it cools back down.