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Re: Imagine 3D for 3D printing
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If you wonder about a specific vertice, go into point edit mode of your joined object and lasso a single vertice in the view with shift pressed... down in the lower left it will tell you how many vertices actually got selectd...

Posted on: 1/31 18:13
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Re: Imagine 3D for 3D printing
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I also must say I don't quite get your way of working?
Is it just for the test you use a plane and gut it with a cylinder to get the final form?

Just wondering for I see no real advantage of doing it that way for that form...

I don't know your inner diameters for the rings... but I am going to make a try...

The object is added as a zip below the picture :)

Attach file:



jpg  ScreenHunter_246 Jan. 31 20.23.jpg (124.70 KB)
1_5a7213422ee2e.jpg 1181X930 px
zip ExampleObject1.zip Size: 6.87 KB; Hits: 69

Posted on: 1/31 19:01

Edited by webmaster on 2018/1/31 19:48:33
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Re: Imagine 3D for 3D printing
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It was a test but also I did not immediately know of a better way of doing it. If the Tube primitive had a selectable wall thickness, that might be one useful tool also.

Sometimes one would need to carve pits to a block that don't go through the block entirely. In a metal shop there is a special drill tool for that with flat tip. I was trying to find a way to do something similar but the Slice command tells of a proximity error when I tried it. So only holes that go all the way through the block were possible.

Thanks a lot for the many pieces of information, I will look into it next.

Posted on: 1/31 21:26
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Re: Imagine 3D for 3D printing
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Your example object is water tight and here is how it looks in Slic3r printer software after scaling to 10% and flipped on Z axis: https://s13.postimg.org/gy5ujqtzb/Example_Object1slicer.jpg

It looks like it is ready to print. The printer software tells your object has 1 shell whereas mine had 2.

I used the Export STL button in the Slic3r software and when that copy is opened in the printer software it now has the correct dimensions but scale is 100%. So that file would be best sent to the printer service provider for printing. Most likely a desired object would be received in the mail.

At least that is what I am going to try next, there are plenty of 3D printing service providers available on eBay.

I will also have to check licensing of the AccuTrans and Slic3r software because it is practically time to produce some physical objects ;)

May I still ask how did you produce the ring part? I did not see an easy way to do it, that is why I used the Plane primitive sliced with Tube primitive (and needing work on the dimensions)?

Posted on: 1/31 22:01
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Re: Imagine 3D for 3D printing
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Ok,
create a disk, 150 diameter
select the inner edges, the "spokes"
Fracture
select the inner circle points
scale to size
select the innermost edges again, the center spokes.
fracture
scale to size
The two now represents the risen band later
select the innermost edges again
fracture
scale to the size of the hole in the center
remove the center vertice

you should now have something similiar to picture 264

select the whole object
extrude 20 units
select the faces of the band to be raised
extrude 20 units

the object should now look like picture 275

Cleanup extra unneeded faces if you want.

Attach file:



jpg  ScreenHunter_251 Jan. 31 23.48.jpg (26.72 KB)
1_5a7247e1b060a.jpg 340X454 px

jpg  ScreenHunter_252 Jan. 31 23.50.jpg (46.17 KB)
1_5a7247ef64f69.jpg 507X471 px

jpg  ScreenHunter_253 Jan. 31 23.50.jpg (61.62 KB)
1_5a7247ff7b888.jpg 509X485 px

jpg  ScreenHunter_254 Jan. 31 23.51.jpg (60.07 KB)
1_5a72480fa06da.jpg 562X477 px

jpg  ScreenHunter_255 Jan. 31 23.51.jpg (54.35 KB)
1_5a72481e8d091.jpg 527X461 px

jpg  ScreenHunter_256 Jan. 31 23.52.jpg (55.45 KB)
1_5a7248484efc5.jpg 501X490 px

jpg  ScreenHunter_257 Jan. 31 23.52.jpg (61.98 KB)
1_5a7248545f4ff.jpg 524X471 px

jpg  ScreenHunter_258 Jan. 31 23.53.jpg (78.00 KB)
1_5a724860dcc82.jpg 832X610 px

jpg  ScreenHunter_259 Jan. 31 23.53.jpg (62.28 KB)
1_5a7248766461d.jpg 544X469 px

jpg  ScreenHunter_260 Jan. 31 23.53.jpg (62.12 KB)
1_5a724884f1cda.jpg 495X482 px

jpg  ScreenHunter_261 Jan. 31 23.54.jpg (72.22 KB)
1_5a72488fcf44c.jpg 517X476 px

jpg  ScreenHunter_262 Jan. 31 23.54.jpg (68.85 KB)
1_5a724898090f8.jpg 504X474 px

jpg  ScreenHunter_263 Jan. 31 23.54.jpg (65.99 KB)
1_5a7248be11858.jpg 520X483 px

jpg  ScreenHunter_264 Jan. 31 23.55.jpg (68.26 KB)
1_5a7248cb2038c.jpg 523X473 px

jpg  ScreenHunter_265 Jan. 31 23.55.jpg (107.64 KB)
1_5a7248f3bdf68.jpg 942X742 px

jpg  ScreenHunter_266 Jan. 31 23.56.jpg (71.45 KB)
1_5a7249034954c.jpg 858X620 px

jpg  ScreenHunter_267 Jan. 31 23.56.jpg (74.90 KB)
1_5a724916689e9.jpg 870X637 px

jpg  ScreenHunter_268 Jan. 31 23.56.jpg (87.81 KB)
1_5a724920377f7.jpg 812X600 px

jpg  ScreenHunter_272 Jan. 31 23.59.jpg (45.24 KB)
1_5a724929a212a.jpg 858X632 px

jpg  ScreenHunter_273 Jan. 31 23.59.jpg (59.54 KB)
1_5a72493f27b58.jpg 803X612 px

jpg  ScreenHunter_274 Jan. 31 23.59.jpg (56.74 KB)
1_5a72495225c18.jpg 818X620 px

jpg  ScreenHunter_275 Feb. 01 00.00.jpg (60.22 KB)
1_5a72495b5e691.jpg 828X626 px

Posted on: 1/31 22:55
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Re: Imagine 3D for 3D printing
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Most excellent. It is like sculpting or lathing in Forms editor but from the top view whereas the same would happen in cross sectional in Forms.

I will try to digest it and send a simple object to a 3D printing house, let's see what could come of it.

Thanks again for all the info.

Posted on: 2/1 0:05
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Re: Imagine 3D for 3D printing
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Sure thing...

Usually use either Blender (which I am trying to learn) or
Sketchup nowadays.

Sketchup used to be really good at this form of editing...

Blender is quite good to extrude with and also works fine for booleans.

Posted on: 2/1 20:01
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Re: Imagine 3D for 3D printing
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Here is the first 3D printed part fresh from the print house: https://postimg.org/image/8nx77ftx1/

I needed a spacer ring or a light seal for camera lens conversion job and created the part in Imagine3D.

I opened the Imagine3D object file in AccuTrans3D software and saved as .stl file. I then opened the .stl file in Slic3r print software and scaled size down to 10%, which gave the proper dimensions for the object to be printed.

Last but not least I saved the .stl file from Slic3r software and sent the file with some instructions to print house (color, material, etc.).

A few days later and six dollars poorer I had the missing part from the mail and it fit like a glove (almost, at least;).

There was a slight problem with the inner diameter so I had to file the part a little to make it fit. But that was just user error from my part and not a problem in the work flow.

Posted on: 2/24 18:52
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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:

Open in new window


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:

Open in new window


Open in new window


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%:

Open in new window


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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Re: Imagine 3D for 3D printing
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Its a long winded way to model something, an outline and spin it is quicker for what your doing.

And i have to ask, why the 10% reduction, does the conversion software make it bigger somehow?

Posted on: 3/6 9:51
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