# grid calculation

 Forum topic by depictureboy posted 01-18-2010 06:57 PM 1544 views 1 time favorited 11 replies
 depictureboy420 posts in 3695 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

 depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. depictureboy420 posts in 3695 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. TopamaxSurvivor18310 posts in 3728 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 Karson35128 posts in 4453 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 † TopamaxSurvivor18310 posts in 3728 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 depictureboy420 posts in 3695 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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