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Design => Stunt design => Topic started by: jim gilmore on September 17, 2010, 12:49:13 AM

Title: Is there a simple trick...
Post by: jim gilmore on September 17, 2010, 12:49:13 AM
I put this in stunt design because I was not sure where else to ask this. Is there a simple way to turn three view and other drawings iinto better black and white only drawings ? Seems any three view I try to expan gets so blurry Its unreadable and much of the white ares turn shades of gray.
Title: Re: Is there a simple trick...
Post by: Tim Wescott on September 17, 2010, 08:24:08 AM
Not that I know of, other than by hand work.  I use QCad to do my drafting.  It'll let me lay a jpg under the work that I'm doing; I do that, then I look for the line/circle/whatever that'll fit nicely into the middle of the expanded line.
Title: Re: Is there a simple trick...
Post by: Neville Legg on September 17, 2010, 10:50:21 AM
I don't know how you are trying to blow-up your 3 views, but I work on plan copiers and plotters for a living, and have no problems blowing-up old Flying Models A4 size magazine drawings to working size! Yes, the lines get a little thicker, but they are nice and black, and reasonably sharp! The plan copier that gives the best results for me, is the Ricoh 240W or the Ricoh MPW2400, and you can scan your 3 view to a memory stick and print it that way! ;D

Cheers    Neville
Title: Re: Is there a simple trick...
Post by: Brett Buck on September 17, 2010, 12:29:24 PM
I put this in stunt design because I was not sure where else to ask this. Is there a simple way to turn three view and other drawings iinto better black and white only drawings ? Seems any three view I try to expan gets so blurry Its unreadable and much of the white ares turn shades of gray.

     If we are talking digital images, jack up the contrast. Actually, that would work with photo-reproduction (they make special super-high-contrast copy film) or Xerox machines.
 
    Brett
Title: Re: Is there a simple trick...
Post by: Neville Legg on September 17, 2010, 01:03:05 PM
Yes they are digital plan copier/printers/scanners. If the M/c is in good order the copy quality will be superb.

Cheers   Neville
Title: Re: Is there a simple trick...
Post by: jim gilmore on September 17, 2010, 03:50:52 PM
M/c? I'm considering buying a wide format printer for roughly $150. Nothing great but will serve 2 functions.
Printing both plans and printing wing skins on silkspan or tissue paper.

Title: Re: Is there a simple trick...
Post by: Neville Legg on September 17, 2010, 09:32:41 PM
M/c,  shorthand! for machine ;D

Cheers
Title: Re: Is there a simple trick...
Post by: Larry Cunningham on October 08, 2010, 06:59:05 PM
It's pretty amazing sometimes what you can do on your PC with a zero-cost graphics program like Irfanview to recover and improve images.

Here's an example of a friend's "business logo" (for Blind Hog Research, where "even a blind hog gets an occasional acorn") scanned from a faded, yellowed sheet over 25 year's old. I thought the result came out pretty good, good enough to have on the wing of a stunt ship!

(Imagine what someone could do with a Mac running full-pop Photoshop or similar.) ;->

L.

"It's no credit to anyone to work too hard." -Ed Howe
Title: Re: Is there a simple trick...
Post by: t michael jennings on March 18, 2011, 03:49:56 PM
Gentlemen,

Which is the best format to scan a plan from a magazine?

                  XXX.jpg
                  XXX.pdf

What should the resolution be set on the scanner?

             dots/inch      300; 600; 1200

Thanks for the info.

T Michael Jennings                      D>K
Knoxville, TN.

Title: Re: Is there a simple trick...
Post by: Bill Little on March 20, 2011, 09:59:29 PM
Gentlemen,

Which is the best format to scan a plan from a magazine?

                  XXX.jpg
                  XXX.pdf

What should the resolution be set on the scanner?

             dots/inch      300; 600; 1200

Thanks for the info.

T Michael Jennings                      D>K
Knoxville, TN.



HI T. Michael,

Although I know there is a difference in jpg and pdf, I don't know EXACTLY what it is.  I do kow that all my pdf files open in Adobe while I can open jpgs in other programs.   

I do artwork for decals in coreldraw which is a vector based (mathematical formulas I'm told) which reproduces sharper image when enlarged or shrunk that "raster" programs like some of the "raster" (sp?) programs that come installed on the computers.  Maybe jpg and pdf are similar?

I do know that the higher you set the resolution when scanning, the better the copy is when printing.  Especially when enlarging.  And the higher setting takes longer to scan. ;D

Not much help, but I know the guys who scan plans seem to prefer the pdf format, and I would scan as high as I could.

Bill
Title: Re: Is there a simple trick...
Post by: Chris Wilson on March 21, 2011, 03:55:43 PM
Gentlemen,

Which is the best format to scan a plan from a magazine?

                  XXX.jpg
                  XXX.pdf

What should the resolution be set on the scanner?

             dots/inch      300; 600; 1200

Thanks for the info.

T Michael Jennings                      D>K
Knoxville, TN.



A PDF or portable document file has both vector and raster formats combined in other words fonts are still editable fonts, graphics are still editable graphics but it exists in a compressed form that is very 'portable' or easily transmissible.

A JPEG file is simply a compressed graphic file that is degraded depending upon its settings.

Now the question of which format is best for a scanned graphic would be best answered by the use of the  highest  quality setting of 12 in the JPEG format captured at 1200 dpi.
This may result in huge final files though, so drop the resolution to suit what your needs are mate.
Title: Re: Is there a simple trick...
Post by: phil c on March 28, 2011, 02:00:52 AM
While you can blow up magazine plans and small sketches to a larger size, typically the lines get wider and wider.  Several graphics programs are available that are supposed to converts raster images to drawings- Corel Draw is one, Photoshop also, I believe.  I've never had any success with Corel.  It generates tons and tons of lines that take forever to clean up.  I've had the best luck, like Tim Wescott, drawing over a JPG image.  It is pretty easy to set lines up to follow the center of the line on the graphic.  Knowing key measurements from the real model or plane helps a lot to set the overall sizes.

One thing to watch out for- many of the plans I've seen published lately in magazines are just pieces of the plans, and often they use different sizes and scaling so it is very difficult to draw up for use.  Some of them use different scales on different pieces of the plane.  In one case the top and side views were different scales so the wing chord and thickness did not match.  Fortunately I knew the designer and he gave me the correct numbers.

Good Luck.