foldable map of Ida |
foldable map of Ida |
Oct 27 2008, 12:57 PM
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#1
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Member Group: Members Posts: 140 Joined: 20-November 07 Member No.: 3967 |
Here is a constant-scale natural boundary map of Ida that folds to a decent replica of the asteroid. Map edges are Ida's major ridges.[attachment=16299:Ida_MaxRidge_post.jpg]
[EDIT] Here it is again with the photomosaic properly credited; apologies to M. Nyrtsov for my oversight. |
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Guest_jumpjack_* |
Nov 7 2008, 07:26 AM
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#2
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Guests |
It was difficult for me even to build a paper Earth globe, without something to glue the paper on... I can't imagine how I could build such an irregular shape.....
But I guess a 3d model should exist somewhere, if a card model has been prepared: where could I find it? Maybe I could build a model by means of multiple overlapped "slices" of cardstock or wood... |
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Nov 7 2008, 02:16 PM
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#3
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Member Group: Members Posts: 140 Joined: 20-November 07 Member No.: 3967 |
jumpjack:
Here is a link Phobos Arts and Crafts that gives tips and pics on assembling these paper models -- Note the link deals with Phobos not Ida, but the assembly tips ought to be transferable. Emily's article also includes (I'll have to confirm this) another link to a post I made here at USF with further tips and alternate method (clear tape) of holding it together -- Emily prefers glue. Oh, Tayfun, now I see your post about the internal slice-packing -- What a superb idea! If you check out the latest posts (and maps) at the "Map of Eros" thread, you'll see my frustration at getting the Eros folded-up map to hold its shape in the Shoemaker region; an internal mass , even if was a fairly loose fit, would, I think, do the trick. The problem will be to coordinate the size properly, so that the photomosaic paper will wrap the insides neatly. The "Tayfun slices" (aim for about 3/8 inch thick; keep it extremely coarse -- not many slices will be needed; as well as a bit undersized) will make on object of a certain scale, and if that matches the scale bar included on the csnb (constant-scale natural boundary) map, things ought to work. Or be close enough that a little fiddling will be all that's needed. When I print the Ida and Eros maps on ledger paper, the assembled (folded-up) objects are about 5.5 inches in longest dimension. They aren't in front of me at the moment, but when I get back to my asteroid lab I'll put the micrometers on them and report. |
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