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  #11  
Old 08-10-2017, 04:12 PM
crystallographic crystallographic is offline
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Quote:
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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  #12  
Old 08-10-2017, 10:10 PM
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Wow you guys are great!
So yes its really going to be a buck, a "quick buck" as its not in my workshop where i can take time to make one from MDF etc.
You got me thinking now. Even a few sticks of these may be enough. http://www.ebay.com/itm/CARGO-QUIKST...-/170699425913
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  #13  
Old 08-11-2017, 01:10 AM
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This is the sill, picture says it all
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Last edited by Bart; 08-11-2017 at 01:16 AM.
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  #14  
Old 08-11-2017, 01:17 AM
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pic not working
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  #15  
Old 08-11-2017, 01:20 AM
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  #16  
Old 08-11-2017, 04:02 PM
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The photo posted above
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  #17  
Old 08-11-2017, 09:21 PM
Oldnek Oldnek is offline
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Bart,
Try making some profiles from 3mm MDF, Take a profile every 100mm number them according to the length you need. Make a few along the length.
You can use aviation snips to cut and to finesse the lines, clean up with some sandpaper.
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  #18  
Old 08-12-2017, 08:27 AM
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Thanks mate
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The photo posted above
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  #19  
Old 08-12-2017, 08:28 AM
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Thanks mate I might do that too. Ill see how I go.

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Bart,
Try making some profiles from 3mm MDF, Take a profile every 100mm number them according to the length you need. Make a few along the length.
You can use aviation snips to cut and to finesse the lines, clean up with some sandpaper.
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  #20  
Old 08-13-2017, 06:33 PM
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Hello Bart.
I'VE been following this thread and wonder as others are you going to use this to make buck or a hammer form? If it is for a buck then maybe you could cover the part with cling film and use expanding foam to give you an imprint. The resulting casting could then cut into sections allowing transfer to a positive buck.

Cheers drib (dave)
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