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3D scanner for Imagine3D?
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Inspired by the many possibilities enabled by 3D printing brings forward a new question for a suitable 3D scanner to scan in more complex object shapes.

Is there a recommended 3D scanner or any other first hand info that could be used for starters?

Posted on: 4/20 4:51
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Re: Dynamic waving Flags - with Imagine 3D
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Result is more than satisfactory.

One funny or curious thing, though - the cloud that spreads in the sky background looks eerily similar to the puffs of material that I can observe aircraft dumping in the sky almost on daily basis - the substance begins to spread and covers sky area in quite similar manner.

Posted on: 4/20 4:40
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Re: Imagine 3D for 3D printing
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Thanks, these functions indeed help. Pick and Hide Subgroup remain gray and do not light up. Are they intended for a grouped object only?

Also Edge Filter and Pick Sharp Edges stay unlit and have not been active to select.

I just wish there was a simple key modifier to un-select specific points just like adding to selection with Shift pressed.

Posted on: 4/20 4:33
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Re: Imagine 3D for 3D printing
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One question though, is there a way to unpick selected points other than Hide Unpicked and then using Reverse Pick?

I can add to the selection by keeping down Shift, but it would be nice to be able to just as easily remove picked points from selection.

Posted on: 4/19 19:09
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Re: Imagine 3D for 3D printing
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I just tested the grid and it indeed works as precise dimensional aid.

The key combination on Windows is Alt + - (minus). If one sets value 0.1, the grid is one tenth of a millimeter for an item to be 3D printed.

The grid is also well covered in the book 3D modeling lab that is a thick handbook for Imagine3D DOS version and still easily available.

Posted on: 4/1 6:46
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Re: Imagine 3D for 3D printing
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That's very interesting. I had not thought about the grid being the Imagine dimension unit but now it seems obvious.

I will try it for the next item.

Posted on: 3/23 16:39
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Re: Imagine 3D for 3D printing
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Understood. But it seems blender is a spline modeler if I am correct? With Imagine3D user has access to each individual polygon of the model.

I received the second set of printed parts and they were almost perfect bolt-on custom spare parts:

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Four tiny screw holes were made using a plane as the dimensional aid. To each corner of the plane a hole was bored using a tube primitive and then 'slice'.

Items need only the slightest touch of finishing with 1000-grade wet paper for perfection.

So I can say first hand that with Imagine3D and instructions from this thread precise parts can be printed.

Posted on: 3/17 7:28
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Re: Imagine 3D for 3D printing
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For some reason I was under the assumption that decimals did not work when sizing a primitive - perhaps I simply tried comma instead of a dot. But now when I tried, it worked fine.

So it is possible that starting with radius of 30.2 gives the exact same result as if starting with 302 and scaling to 10% later.

The imagine3D units are arbitrary and either the AccuTrans converter program or the printer software translates into millimeters. But there is no problem with that whatsoever.

I'm always interested in collaboration and there might be suitable projects in need of more 3D modeling. Imagine3D is unique because it is a direct polygon modeler rather than shape modeler (spline?).

Posted on: 3/7 17:04
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Re: Imagine 3D for 3D printing
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>And i have to ask, why the 10% reduction, does the conversion
> software make it bigger somehow?

It is actually 90% reduction.

Imagine 3D units for primitive dimensions are integers only. So if your object has the final dimension of 60.4 mm diameter, you would start with 604 Imagine units (302 for the radius).

In the printer software the object would first show as 604 millimeters, so you scale down to 10% of the Imagine3D size and get what you need.

In practice this seems to work fairly well.

Posted on: 3/7 12:54
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Re: Imagine 3D for 3D printing
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I created a fairly simple spacer ring with several shapes using Johan's tutorial above:

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I found a solution to measure the dimensions of the inner shapes. Create disks with the proper dimensions, for example here the radiuses were 245, 272 and 302 Imagine units. Then merge the disks and remove the center dot and you should have accurate dimensions to compare your object with:

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As you can see, it is now possible to make the other diameters than just the external one to one's liking with precision.

The target for the outer dimension was 60.4 and here is how it looked in Slic3r printer software after scaling down to 10%:

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I'd say that this completely solves accurate measurements. However, currently it looks like objects with only 1 shell print correctly (at least in this printer software). It means that the whole object needs to be made from one primitive or shape.

It the object could be turned in a lathe, Forms editor is just the right place for modeling.

It remains to be seen if grouped and joined objects with more than one shell could be printed correctly.

Posted on: 3/5 19:03
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