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How do I enlarge a picture to a door size from an 8x10 size How do I make a door size picture from an 8x10? Answered

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I am redoing my sliding glass doors. I use Gallery Glass paint to make images on them 

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liquidhandwash (author)2015-09-22

Have a look at this

https://www.instructables.com/id/Giant-Poster/

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Downunder35m (author)2015-09-21

A Pantograph (purpose made for the door size) would also work great.
Depending on the details it might even be faster.
Apart from that I would prefer a cheap projector, these old ones for the tiny sliding images are great.
But it takes either a good printer to make a tiny pic on transparent foil or a little bit of modifications so the rojector accepts bigger images.

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rickharris (author)2015-09-21

A very basic way to scale things is to draw a grid over the original. Copy this grid but at a larger or smaller size. then copy the drawing square by square onto the new grid.

This sounds a long process but isn't actually all that bad.

You can make a reasonable copy even if you are not artistic.

In the image i have copied the celtic know at twice the scale of the original.

Original grid 10mm copy grid 20 mm.

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rickharris (author)rickharris2015-09-21

I should add that you can put the grid onto an acetate sheet or tracing paper and then over the original so you don't need to draw on your original art.

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Josehf Murchison (author)2015-09-21

My brother wanted to decorate my nephew's room with comic book hero's so he took toy projector something like this tracer.

http://www.sunset.com/home/weekend-projects/how-to-paint-floor-canvas/floor-projector

He placed it over the image of Spiderman projected the image on the wall and traced out the image then filled in the colors.

I was looking for the projector when I found this tracer just for the job you are trying to do.

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