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Old Nov 29, 2012, 09:40 PM
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United States, AL, Arab
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Help!
need help resizeing plans

i want to take a set of plans and resize them they are for a 63" wing plane and i want to resize them to 47" how can i find the % to shrink it ????
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Old Nov 29, 2012, 10:25 PM
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um, using math might help, you never know.

47/63= .746 which means 74.6% so I'd round up to 75%
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Old Nov 30, 2012, 12:05 AM
Scale Builder
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Look at that rcmadog, you got your answer and a nice insult (oxymoron?) to go with it. You know the old saying, with friends like that...
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Old Nov 30, 2012, 03:32 AM
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Or more generally :

Percentage to resize = (New size / Old size) x 100

Of course the more interesting part after you have the resized plan is sorting out what materials to use because they don't always resize so directly.

Steve
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Old Nov 30, 2012, 07:50 AM
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Penalty-unnecessary roughness.

Whoa !-you are the epitome of what NOT to do when someone asks for help !

If you think you're funny-you're not......if you're bored,or the king of builders,you shouldn't be wasting your time here.tame it down.

The man asked a question,and deserves a much better answer than that. The answer was good -the delivery was not in good taste.IMHO.
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Last edited by epoxyearl; Nov 30, 2012 at 07:59 AM. Reason: tame it down
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Old Nov 30, 2012, 10:07 AM
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Since your reply immediately follows mine I have to assume you are talking to me, epoxyearl. In which case you know what you can do with your ignorant rudeness.

And I notice you offered no assistance, just criticism, which I'd suggest makes you the epitome of how not to be helpful !

Steve
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Old Nov 30, 2012, 11:45 AM
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You could take them to a copier place (Kinkos) and have them reduce. Keep in mind that if there are "sticks" involved (for the spars for example) you will need to manually re-size accordingly as they won't scale to available lumber or they may not be sized right strength wise. Just use different sized wood when building, no need to re-draw the plans. Will also have adjust the notches in the ribs and such. Not really a big deal though as I do my final sizing on the wood anyway to match the stick stock I have on hand as opposed to going strictly by the plans
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Old Nov 30, 2012, 11:50 AM
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Slipstick-wasn't talkin'to you.At one time I vowed to keep this civil,and Curare's answer didn't seem to be all that.
I can't sit back and watch someone be rude because he thinks it's a stupid question.
A man asks an honest question,he deserves a fair answer,with out being disdained..
Your answer and mine are nearly identical-no sense in repeating you.
I invite you to read my posts,any of them,and find one that treats anyone with disrespect.
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Old Nov 30, 2012, 12:27 PM
Marion
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epoxyearl. So tell me how your post helped the original poster......
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Old Nov 30, 2012, 06:09 PM
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LOL thanks guys that what i needed the math i didnt know how to do the math thanks agine
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Old Nov 30, 2012, 06:22 PM
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Quote:
Originally Posted by epoxyearl View Post
Slipstick-wasn't talkin'to you.At one time I vowed to keep this civil,and Curare's answer didn't seem to be all that.
I can't sit back and watch someone be rude because he thinks it's a stupid question.
A man asks an honest question,he deserves a fair answer,with out being disdained..
Your answer and mine are nearly identical-no sense in repeating you.
I invite you to read my posts,any of them,and find one that treats anyone with disrespect.
There is no disdain, I have a dry sense of humour, and my methodology is correct.

In future I think I'll keep my answers to myself, as I obviously seem offend people who the post isn't even aimed at.
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Old Nov 30, 2012, 06:58 PM
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Curare-I appreciate the explanation..I did not know you are a 'dry' wit.
I read your answer as a bit rude,and now that I reread it with an eye toward that, I can see it.
It's kind of like saying-"Dr.,it hurts when I do this !',and the Dr. slapping you upside the head,and saying "well-don't DO that !"
PLease don't be offended by my remarks.Earl.
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Old Nov 30, 2012, 09:12 PM
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Quote:
Originally Posted by epoxyearl View Post
Curare-I appreciate the explanation..I did not know you are a 'dry' wit.
I read your answer as a bit rude,and now that I reread it with an eye toward that, I can see it.
It's kind of like saying-"Dr.,it hurts when I do this !',and the Dr. slapping you upside the head,and saying "well-don't DO that !"
PLease don't be offended by my remarks.Earl.
Wouldn't you know it, thats one of my favourite sayings

No harm, no foul. In future I'll try to put a bit more of a lid on my ascerbic wit. Sometimes we forget that our words can be taken in more than one way.

So if something I say offends you in future, I didn't mean it like that, I meant the other meaning!
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Old Nov 30, 2012, 09:16 PM
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Acutally, Back to the OP, be careful about reducing or enlarging plans too much, Unless the desginer is a complete dolt, the structure has been optimised for ease of building and lightness/strength.

When you enlarge or reduce plans too much you start to get goofy looking structures. imagine a 18" span model increased to 60" and you'll have maybe 6 ribs, 12 inches apart. Not great. Conversely, if you shink a 60" plan to 18" you'll have a million ribs half an inch apart, We're only talking ribs as it's a good example but the same thing applies to the whole plane. 75% is probably at the limit (at least in my mind) of how far you could reduce the plan without making significant structural changes.

Just out of interest, what's the plan?
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Old Nov 30, 2012, 10:39 PM
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Re report #13

Curare-please don't curb your sense of humor....we can enjoy it for what it is.

Maybe this morning, I could have used a good laugh...
rcmadog-
I have plans enlarged,mostly,and one of the problems is not seeing the forest for the trees.......If an enlargement/reduction results in non-standard size wood,almost always,a standard size can be substituted...=If a piece measures 13/64,you can still use 1/4 " stock..All dimensions are not that super critical,depending on what you're building.
You're allowed to fudge on some dimensions ,and it'll be fine.
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Last edited by epoxyearl; Nov 30, 2012 at 10:50 PM.
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