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 CAD / LDraw Files / Parts / 5884
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Subject: 
Re: Plastic Sheets parts for Mars Exploration Rover (Set 7471)
Newsgroups: 
lugnet.cad.dat.parts
Date: 
Sun, 12 Mar 2006 20:17:55 GMT
Viewed: 
11616 times
  
In lugnet.cad.dat.parts, Michael Heidemann wrote:
> Marek Idec schrieb:
> > Hi,
> > I have purchased recently the LEGO set 7471. It contains 7 parts of 4 different
> > types that imitate solar panels. I created DAT files for all of them. They all
> > are plastic sheets and I copied their names and numbers from Peeron:
> > http://www.peeron.com/inv/parts/x1023a
> > http://www.peeron.com/inv/parts/x1023b
> > http://www.peeron.com/inv/parts/x1023c
> > http://www.peeron.com/inv/parts/x1023d
> > I submitted my files to the Parts Tracker and they can be found here:
> > http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/x1023a.dat
> > http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/x1023b.dat
> > http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/x1023c.dat
> > http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/x1023d.dat
> > Please review them and send me your remarks. In particular I would appreciate
> > your advice on following questions:
> > 1. I didn't know where a point of origin of those parts should be. My arbitrary
> > decision was to locate it in a centre of a hole. I have chosen holes with the
> > lowest value of the z-coordinate and the lowest value of the x-coordinate. The
> > top surface has the y-coordinate equal to 0. If you have any other ideas that
> > could be reasonable, please, let me know. I'm open for your suggestions.
> > 2. I have measured thickness of those sheets with slide calliper. They are 0.6mm
> > thick. I made them 1.5LDU thick in my DAT files. Should I keep the value of
> > 1.5LDU or rather round it to 2LDU? Please notice that they might be used with
> > either flat surface up. In models like 7471 left and right solar panels are the
> > same. If the thickness is 1.5LDU in one of those cases proper positioning of a
> > part might require fractional value of one of coordinates. I know it is not
> > forbidden but with a thickness of 2LDU it would be easier to build models.
> > 
> > Regards,
> > 
> > Marek
> Dear Marek,
> 
> If the parts 0.6mm thick then it is ok to have 1.5 LDU measuring. The
> aim is to make the parts close to original parts not to have easy to
> build with parts.
> Regarding the point of origin I also feel that your decision to take one
> of the holes is a good one.
> I only have problems with the part number, because if we do not know the
> original LEGO part no we normally ask the admin of the parts tracker to
> give a part no. That is a three digit no with a leading x as long as it
> is on the parts tracker. Once it is certified the leading x will be
> taken away and the three digit no is then the part no in the LDraw
> system. So I will now go for the parts and put a hold vote until the
> parts are renumbered.
> 
> Cu
> MikeHeide

Dear Michael,

Thank you for your comments. Giving to my files the number x1023 I assumed that
there is a relationship between Peeron numbers like "x-something" and names in
Parts Tracker. I have just checked some random parts if such temporary numbers
are the same in both systems. I was wrong. There is no relationship. In this
case I am going to ask Parts Tracker admin to assign number to those part.
Regards,
Marek



Message is in Reply To:
  Re: Plastic Sheets parts for Mars Exploration Rover (Set 7471)
 
Marek Idec schrieb: (...) Dear Marek, If the parts 0.6mm thick then it is ok to have 1.5 LDU measuring. The aim is to make the parts close to original parts not to have easy to build with parts. Regarding the point of origin I also feel that your (...) (21 years ago, 8-Mar-06, to lugnet.cad.dat.parts)

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