Maths question, anyone ?

[monkeyeyes]

I'm driving myself insane and now nothing I write down looks correct.............please can someone help ?

I need to enlarge a drawing (in my 'puter) from 1/1250 to 1/500.........and then instruct my 'puter to print it out as a '%' of the original drawing......

it's driving me completely beresk............help, please.

[dundurn]

I'm not sure I've understood your problem, but here goes. You want to change the drawing from 1/1250 to 1/500 - so you're making it 250% bigger than it was. If you want the computer to print it at the same (output) size as originally, then you need to tell it to produce the new drawing at 40% to fit the paper. OK? If I've got it completely wrong wait for a better answer!

[Jugglering]

What package are you using ? If you are using AutoCad, why not create a layout and view that is scaled at 1:500 instead and use a template set up for whatever paper size you have.

Dundurn is quite correct about the 40% (500/1250 x 100%).

[monkeyeyes]

It's a 1/1250 OS extract that I have had to buy on-line...............the Local Authority I am dealing with also want a 1/500 Block Plan...........and I'm not paying another �28.00 to receive the 1/500 scale.......:o)

The paper size does not matter, it is the image that is important..........

[Jugglering]

Ahh.... ok monkeyeyes... I thought you had created the drawing yourself, sorry !

Try the 40% option - but here's a little tip. Print out what you can of the drawing at 1:1250 and measure between a few points, using a 1:1250 scale ruler if you have one and make a note of the distance. Print out at the 40% as suggested above and re-measure between the same points using a 1:500 scale ruler. If they are (approximately) the same distance, then you know you've got the % correct.

Failing that, email me a copy of the drawing ([email protected]) and I'll transfer it to the correct scale for you and email it back to you in the next day or so - just change the phrase myusername to my actual user name lol)

[wildwood]

You might not be able to print it out yourself. As I understand it the drawing needs to be two and a half times bigger which may make it a lot bigger than the average household printer can manage.

The original scale of 1:1250 depicts that 1 inch (or cm, or whatever) on the paper indicates 1250 inches.
What they want is a paper that describes the same distance (1250 inches) as 1/500th of the real size so the 1 inch on the original paper now needs to be 2 1/2 inches to indicate the same distance.

I think......... now my head hurts too!!!!!!

[Jugglering]

You are quite correct, Wildwood. I suspect that monkeyeyes' drawing at 1:1250 covers quite a large area (well beyond the boundary of the proposed works) and s/he also needs to submit to the Local Authority a plan of these works at 1:500. However, the area covered by just the works might well fit within a 1:500 plan onto an A4 or A3 printer.... It all depends on how large an area the proposed works covers.

[monkeyeyes]

Thanks, folks............

[Jugglering]

OK, I had a play with this .... To transfer from 1:1250 up to 1:500 you need to set the the printer to print out at 250%.... and to transfer from 1:500 down to 1:1250, the setting is 40%.

If you still have problems monkeyeyes, just email me the file (presumably it's in pdf form) and I'll change the scale and email it back to you.