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Messages - mrLaw

1
General discussion / Re: Dangerous 3D Models
Ah, yes, I misunderstood your comment. I think you are right, if you change the field of view in sketchup to be the same as your camera, then you should get the two closer.

If you are going to try to match sketchup to your camera, then you also might need to take into consideration the crop factor with digital cameras.
http://http://en.wikipedia.org/wiki/Crop_factor

I made a mistake in my last post, the sketchup models were not set to 35mm, but to 35 degrees. You can set the FOV to mm or deg.
http://http://support.google.com/sketchup/bin/answer.py?hl=en&answer=94945&topic=2458155&ctx=topic
2
General discussion / Re: Dangerous 3D Models
I haven't come across any problems with the alignment of the pictures between sketchup/kerkythea. What i do is get the viewing angle where i want it in sketchup (field of view was set to 35mm) and also resize the window to get the maximum amount of the PCB/components in. Save the sketchup file so whenever you open it, it opens at that view and window combination. I then export to kerkythea, sort out the materials and render.

I did a quick test by changing the field of view in sketchup to 60mm, exported a image from sketchup, exported the model to kerkythea, rendered and they both look the same.
3
General discussion / Re: Dangerous 3D Models
Hi peoples,

Would like to say thanks for the tutorials on the 3D rendering, its great to see the more realistic views of the circuit boards and components. I have had a play around with the Maxwell render, then the Kerkythea renderer, i am liking the Kerkythea slightly better from a usage and rendering perspective.
 
Here is a picture of the circuit board done with Kerkythea.
[attachment=0]

Here is a photo of the circuit board.
[attachment=1]

Now to give Filip’s technique a go for the bump mapping of the copper......
 
Cheers.
Simon
4
Project development, ideas, and suggestions / Re: Old Sanyo Calculator with Nixie!
Great find!

Like tayken mentioned, you can use a boost converter to generate the HV for the nixie tubes. There are built nixie power supplies out there that you can use if you dont feel like building one.

http://www.tayloredge.com/storefront/Sm ... index.html
http://www.allspectrum.com/store/nixie- ... c#+HV-SMPS
http://www.kosbo.com/ndcm/
http://www.ledsales.com.au/catalog/inde ... cts_id=652

Is there any part numbers on the back of the tubes? It would be best if you can find a datasheet for the tube as then you would know what voltage to run them at and how much current you need for each digit (usually about 2-3mA).

I had a quick look around on google and found some sites that have information on the calculator (i think is your model), but no information on which nixie tubes were used in it.

http://epocalc.net/pages/calc_sanyo.htm
http://www.datamath.org/Related/Sanyo/ICC-82D.htm
http://www.cpu-galaxy.at/complete_syste ... CC-82D.htm

A great source of information on nixie's is the neonixie-l google group.

Cheers.
Simon
5
General discussion / Re: Cheap PCB manufacturing timelines
This is a combined picture of areas of one board from ITead which has some soldermask issues and the silkscreen is also slightly out of alignment. On the other nine boards, the soldermask is fine.

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