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Forum topic by depictureboy posted 01-18-2010 06:57 PM 1374 views 1 time favorited 11 replies Add to Favorites Watch
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depictureboy

420 posts in 3109 days


01-18-2010 06:57 PM

Topic tags/keywords: torsion box

What is the math formula for spacing out a grid evenly between frames….

I have a frame that is 58.5 inches wide(bed frame) and I want to lay 6 boards evenly between the sides…I am missing the formula…

I have tried subtracting the width of the boards(6x.75)from the overall width..but that doesnt work. Then I tried adding it and that REALLY didnt work…

anyone know how to do this? hehe

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.


11 replies so far

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depictureboy

420 posts in 3109 days


#1 posted 01-18-2010 07:15 PM

close dave….the boards are on edge…so they are .75 inches wide…but there are 6 boards…doh…on center…shoot…i was doing it by edges…grrrr…

ok so by your fomula it should be (58.5-(6x.75))/5

right? I tried a couple different things in sketchup…which is where Im doing my work..but i couldnt get it…its monday…should be programming…bleh.

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#2 posted 01-18-2010 07:25 PM

no from the inside edges of the outer boards or I could go on center…I just want the inside boards to be spaced evenly…

also, using your formula is there a way to get the number of boards needed if you want them x amount of space apart? My math has always been horrible…

center to center of the outer boards is 59.25

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#3 posted 01-18-2010 07:31 PM

I am doing it in sketchup…. :)

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#4 posted 01-18-2010 07:36 PM

Yes dave Bentlys drawing shows what I was inferiorly trying to explain :)

I was hoping to do it in a way though that I could lay out guidelines…but that way works…

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#5 posted 01-18-2010 07:43 PM

dont feed me fish…teach me to fish…hehe…how did you figure it out? I think it would be easier to do it from on center though so I could lay out my guidelines or just move a copy x inches from the previous…right?

so the 2 outside boards are 59.25 on center with 6 more boards in between for a total of 8 boards.

(59.25-(8x.75)/9 or would it be (59.25-(8x.75)/7 because there are really only 7 spaces…

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#6 posted 01-18-2010 07:55 PM

yea…there are 8 boards total…the 2 for the frame with 6 members spaced evenly inbetween them The external 2 member may or may not be the same width as the internal members…

forgot i had a picasaweb account…picture….yay….

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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depictureboy

420 posts in 3109 days


#7 posted 01-18-2010 08:01 PM

did what you said dave…that worked..cool…thanks for the sketchup thing…didnt know you could do that.

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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TopamaxSurvivor

17674 posts in 3142 days


#8 posted 01-18-2010 09:18 PM

REmeber how easy it was to do this stuff before calculators and computers :-)) Just pull a slide rule out of our pocket and have the answer right away!!

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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Karson

35035 posts in 3867 days


#9 posted 01-18-2010 09:24 PM

Now I’m confused. That anyone could use a slide rule. I don’t know how we hit the moon with just sliderules.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia karsonwm@gmail.com †

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TopamaxSurvivor

17674 posts in 3142 days


#10 posted 01-18-2010 09:36 PM

I doubt if anyone can use one anymore! I have forgotten the log scales and trig, it isn’t any good for measuring :-))

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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depictureboy

420 posts in 3109 days


#11 posted 01-19-2010 01:27 AM

I remember my dad used to use an abacus to figure out complex math stuff….ick….

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.

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