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Old 08-10-2017, 04:12 PM
crystallographic crystallographic is offline
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Originally Posted by Bart View Post
Hi guys
Need a bit of advice on copying a sill/door jamb. It’s approximately 2 feet long section X 3.5 inches wide.
Issue is the car is in a different location from my workshop. Quite a few miles.
So basically I was thinking of getting a “3D print” of this section but not an electronic print more like using modelling clay. Not sure on how much shrinkage will come from modelling clay when dry though.
Bondo would be better with little or no shrinkage but means I would have to put some release agent on the part and more costly.
Any advice would be great!
Thanks
Bart

Hi Bart,
I have used Durham's Rockite (hardware store) for that. Adding fibers or fiberglas cloth is helpful for keeping it together on long forms. Thin dowel or aluminum helps keep stiffness on skinny parts.

Masking tape on orig, and tape dams to hold the goo until it sets up....
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