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Old 08-08-2017, 10:52 PM
Charlie_L Charlie_L is offline
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Default Pterodactyl Egg

The family now has some friends that live in a remote area, no electric, no cars, just a long boat ride to visit. They have their own island. Anyway one of their projects was to pick up fallen limbs in the woods so they could hike. Well, they ended up with a Pterodactyl nest the size of a small garage. So, we decided we are going to figure out a way to sneak in an egg or two for the nest. One will have a baby in it.

All this led to the first time I have sliced a 3d model. While this was really a time consuming process, I really enjoy first time projects.

Finish size, 24 by 18 inches. Material was the 2 inch thick pink foam from the big box store. Used one sheet for 1 1/2 eggs.

Ain't perfect, but it is just for fun. It will be fiberglassed and painted before display.
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File Type: jpg 2017-08-03 23.23.44.jpg (97.0 KB, 59 views)
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File Type: jpg 2017-08-05 09.04.24.jpg (99.2 KB, 67 views)
File Type: jpg 2017-08-05 10.13.23.jpg (89.4 KB, 69 views)
File Type: jpg 2017-08-05 11.28.01.jpg (97.2 KB, 71 views)
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Stinger II, 48 by 48, 1.7 kW Spindle, FTC + Laser + Recoil + Vacuum, July 2012
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Old 08-09-2017, 04:44 AM
T.R.MacMunn T.R.MacMunn is offline
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I love it!
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Old 08-09-2017, 08:25 AM
Brian O Brian O is offline
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Default glue

Cool project! What did you glue it together with? Did you use some kind of dowel to align the parts as it appears each layer would be different? Any way what a great idea and execution.
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Old 08-09-2017, 10:34 PM
Charlie_L Charlie_L is offline
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Glued using West system epoxy for 1/2 egg. Then I got in a hurry and just put on dabs of 5 minute epoxy in a few places. After all, the entire assembly will be held together with fiberglass. The layers just needed to hold good enough to sand them to look pretty and then stay in place for glassing. The glass had wrinkles because I had jammed it in a bag a few years ago so it didn't lay flat at all. That is where the West system was used more. Again the epoxy was years old so I didn't worry about it much. The materials were pretty much free and it is a joke gift kind of so we didn't want to make it so good that if they throw it away we would be bothered....
No doweling, just got it close, then glued, then sanded with a large 60 grit flat piece of sand paper. It sands like butter, with lots of debris. It is easy to make it look nice.
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Old 08-10-2017, 08:16 AM
mikeacg mikeacg is offline
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Charlie,

And the epoxy didn't eat the foam? I need to hear more about that!

I use PL 300 (foamboard) for all my foam projects and stick toothpicks in at angles to hold it in place until it sets up. When it is ready you can pull the toothpicks and the first layer of paint hides the holes.

Mike
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Old 08-10-2017, 08:19 AM
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Gary Campbell Gary Campbell is offline
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Mike..
Most epoxies don't eat foam, polyester (fiberglass) resin does. And mostly only the pink/blue home insulation foams. The HDU sign and marine foams are untouched by either.
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Old 08-10-2017, 08:22 AM
T.R.MacMunn T.R.MacMunn is offline
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Hey Charlie .... aren't pteradactyls now called "snallygasters" ..... that's what them wacky dudes in West Virginia call them when they're out looking for them at night ( a show on TV)
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