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How can I accurately scale up an A4 drawing onto a much bigger canvas, without a projector? Answered

I have a few line drawings I want to reproduce but on a much larger scale, but without the whole route of clear plastic + overhead projector (no such tools available). Any ideas?!

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1
ph1losophe
ph1losophe

10 years ago

OR...you could do it for practically free.  If you have a printer, paper, and ink for the printer try this.

http://www.blockposters.com/

^^site's great....use it a lot.

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pwilon
pwilon

11 years ago

I use a proportional divider set to precisely the ratio needed. It has to be one which can be varied smoothly and not limited to step changes. Mine came by online purchase from www.blackmouse.com and cost only £25.00 in sterling

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KEYBOARDISBROKEN
KEYBOARDISBROKEN

11 years ago

get the following: 1 sheet of A4 tracing paper (if it's got squares on- even better one pencil- a Hb type or harder. ruler (long) adhesive tape if the tracing paper hasent got squares on- then draw a grid on it- makes each square 10mm by 10mm. now holding the pencil lightly (so you get really pale lines)- draw the same grid on the bigger canvas- but remenber to make each square bigger (like 20mm by 20mm) than whats on the tracing paper. use the tape to hold the tracing paper in place- make a copy of the origional drawing. finally- one square at a time- re-draw the traced image onto the respective square on the bigger grid. this is why you need light pencil lines for the grid- so you cant see them after your done. (this is a really good technique for doing murals on your bedroom wall!!)

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orksecurity
orksecurity

11 years ago

Or the classic solution: Overlay it with translucent tracing paper, lay out a grid on the other surface, fill in each large box freehand using the small box as a guide. Tedious, but works reasonably well even if you aren't much of an artist.