turn dicom files into stl and then reverse on cad

[jno]

I'm sorry, I asked you a stupid question.

It was enough to read more carefully what you have already written to me.
you used spaceclaim and saved file is not editable by designspark
for some reason we don't know.

a question, you covered the stl file and the drive hole that is 7.2 mm is 9.2 mm.

this means that you lose original measurements using a stl file in general,
or that since I posted the simplified version
of the stl file to fit the forum size
is this simplification that varies the quotas of the various components the plastic block?

i.e., using the original stl file, would the odds be more consistent with the scanned model?

 

[mariuss.r]

or that since I posted the simplified version
of the stl file to fall into the attachable size of the forum is this simplification that varies the odds of the various components the plastic block?

That's right. .

I should have given you more explanations, not taking anything for granted.

I created the engine port using rhino non spaceclaim, but it doesn't make a difference as designpark actually doesn't allow to change imported objects.
I believe that they have deliberately limited the program to avoid the objects of their library being modified.

the first stl you posted lost many details due to the excessive decimation of the triangles, and clearly also its size changed, as I pointed out on my post number 5.

one of the first checks I always do on the scans I receive is precisely the dimensional control of the object.
In this case it was not possible because I didn't have the piece and not even any reference share.

According to me designspark is not the software you do for yourself, I suggest you download freecad which is a parametric and open source modeler.
It has all the features you need.
attached find the pieces you see in the image ( stl and model) in the freecad format
http://www.freecadweb.org/

 

[mariuss.r]

this is the link to the manual in Italian on the use of freecad
http://www.freecadweb.org/wiki/index.php?title=online_help_toc/it

 

[jno]

I see.
It's a really complete tool, I read about the answers of professionals
that began to use it at the beginning of 2015,
if they are excited that they already know the matter means that it is a great tool.

Fortunately my knowledge of the designpark was really at the very least
so moving to this system will not cause strong trauma.
will serve more than a few days to get to redesign what little I did with the designspark,
It's not a job.

thanks again for the info always precious:finger:

 

[jno]

Bye. :smile:
the thing goes very slow, it is much more complicated to use than sparkdesign,
But I have to prove that I'll finish it.

today as curiosity I have installed geomagic (try version for 15 days)
that gave an automatic "refrullata" to the stl file,
eventually provides a very light output file,
about thirtyth of the entry expressed in mb.

as my usual in a 30th of minutes I understood nothing
but it seemed to go very fast in the processing of the object.

I have not even understood whether the processed is still a simplified stl, or a cad file format.
he saves it in .xrl format and does not allow export in other formats.

Do you think the processing made into what turned it into?

I train, more than anything else is a curiosity.

 

[jno]

I have been content with the grandchildren for months.... I have built by hand the blocks,
They wouldn't have made me survive all this time.
Anyway...
:finger: I finally played it in a precise scale (spero):tongue:
I can change it for the two engines.

 

[jno]

:smile: to have an idea of how it will end, while I have modified it with paint (which is the ultimate shame , I know, but at least you two laugh )

 

[stolfait]

:smile: to have an idea of how it will end, while I have modified it with paint (which is the ultimate shame , I know, but at least you two laugh )

Hi, this is me.
I am a stolfa juseppe of the stolfa it, a professional 3d design and printing studio in altamura, we currently use solidworks and rhytasys printers. I am pleased to read that in the surroundings there are people interested in the topic.

I read a little discussion and I was interested in the possibility of tac and x-ray scans.
I don't know where you came with your applications, but it would make us have you here to talk better in person since I understood you are from here

p.s. congratulations on the desire and passion you put in your work

We remain waiting for your answer.

jesse stolfa
I'm sorry.www.stolfait.com

 

[jno]

:smile: hi giuseppe.
I sincerely apologize, I have had no notification of your answer that I read only today.

I tried to contact you by phone, try again in the afternoon.

Anyway...

I have, of course, improved the scans on tc.
Currently we talk about possible scans of objects up to 600x600x1800 mm
with anti-noise filter for metal objects possibly contained in the part
and direct rescue in .stl format without data loss (also .stl file gb).

of course x-rays also scan any internal surface optimally.

this now makes the tc directly:
scan the object, acquire in dicom, orientate 3d tc reconstruction without data loss,
save everything directly in .stl file.
the tc in question "travel" on the million euros in cost and weighs on the 3000 kg
(a scanner not properly portable:tongue

for data acquisition, the detector owns a section of 0.625mm x 0.625mm
therefore in axial acquisition it does not fall under this value, for simple and fast prints it is optimal.

with volumetric acquisition, instead, slice of 0.1 mm or even lower,
increases the time of reconstruction of dicom images only considerably
and their total number.
(there would be no limit, in theory the software also allows to get slice of 5 microns)

marry very well with the sla resin print.
the stop time, the reason why I didn't follow the forums, is that for thin layers only the sla printer
has the possibility to print, all press centers refused to print my carrier.

so I bet the only printer for me possible as cost
that unfortunately late to be released to the public,
we are talking about the ono3d (ex holo 3d) which after so much delay
It seems that participants in the kickstarter project are beginning to receive.
https://www.kickstarter.com/projects/olo3d/olo-the-first-ever-smartphone-3d-printer/for us poor mortals it seems to be ordinable from May, with a precise year of delay,
Hopefully you don't find yourself a buffalo.

 

[jno]

:smile: the first deliveries of Honour 3d seem to be happening..... we hope well....

:wink: meanwhile:
good Easter at the whole forum !!! :finger:

 

[cr450e]

Hello to all of the forum.

:smile: I ask if there is a possibility of exchange favors on bares or around.

I leave from (under) zero....
I can scan high resolution of objects up to 45x45x100 cm practically every day.
being at first I tried to make smart and convert a plastic object from dicom to stl
to be able to import it into a cad to vary its measurements, this is what I need.
(The object is disarming simplicity, but my ignorance of the newly downloaded programs is not just: )

x-ray scanning allows to have also the inner part scanned objects,
Usually you search this feature for mechanical objects.
monthly I can also perform unusual scans of 55x55x200 cm depending on weight.

in the first test I used an acquisition with these parameters:
80 kv, 30mas, 64 x 0.625 mm per slice, 5x5 cm of fov, in pure axial
with noise reduction metal parts (the object has a metal shaft)
and reduction of noise during reconstruction of dicom images
owner of the equipment I assist.

the resulting dicom file travels on the 185 mb and the stl file on the 150 mb, but it is precisely on the conversion that I have problems,
I have to generate a decent file to send to any press center.

the exchange I propose would be to perform scans for those who need it
and receive appropriate instructions on the use of 3dslicer for the correct conversion to stl.
(I also downloaded meshlab, meshmixer and designpark)

Moreover, finding the correct parameters and steps also serves to those who then ask me for scans.
(you will find yourself with the same problem )

I can always monthly increase scanning quality to 0.3 mm slice in pure axial
or down to 0.1mm in volumetric acquisition.

:smile: Hopefully I guessed the right section I expect some constructive response
Of course I can attach photos of the object, what it takes etc.

I just joined the forum just for information about conversion dicom - stl
I am a dentist and I would like to print the volumes that I acquire with a device with beam sirona fov 8,5 x 8,5
I slicer3d, could you explain the steps to get a stl file?

Thank you, dario

 

[cadangelo]

Hi.
I can't find the tac scans of the piece
you could repost, naively
I wish I could observe the reconstructions.
in case you need a personal scan how could I contact you personally?? ?
Thank you.
france