joessportster Posted April 4, 2019 Share Posted April 4, 2019 I want to take 3 panels 20" high and fit them onto a structure 50" Tall My thought take wood and cut 3 vertical beams angle the bottom back and the top beam forward with the center at 90 degree to the floor Pic may make it easier to understand below.........................What I need is the angle indicated in the pic Quote Link to comment Share on other sites More sharing options...
Schu Posted April 4, 2019 Share Posted April 4, 2019 Is beam 1 and beam 3 exactly perpendicular? If they are precisely 90 degrees, the beam 2 is 45 degrees in relation to the other beams, but NOT any other structure. Quote Link to comment Share on other sites More sharing options...
pbphoto Posted April 4, 2019 Share Posted April 4, 2019 4 out of 3 people struggle with math. 1 2 Quote Link to comment Share on other sites More sharing options...
Schu Posted April 4, 2019 Share Posted April 4, 2019 ... Quote Link to comment Share on other sites More sharing options...
Bosco-d-gama Posted April 4, 2019 Share Posted April 4, 2019 If you have the 3 wood panels you can easily set this up and measure the angles directly. Lay the panels flat, side by side on the floor against a wall. Then raise the 2 end panels until they fit the 50” measure. Mark the wall (covered w/paper of course) and measure the angles using a protractor or some such tool. Quote Link to comment Share on other sites More sharing options...
Schu Posted April 4, 2019 Share Posted April 4, 2019 You actually only need to build half of it... I would need to draw it to figure this out. Quote Link to comment Share on other sites More sharing options...
Gilbert Posted April 4, 2019 Share Posted April 4, 2019 4 cuts at 22.5 deg 1 cut at 45 deg. Quote Link to comment Share on other sites More sharing options...
314carpenter Posted April 4, 2019 Share Posted April 4, 2019 In my experience the math will only get you close. For a perfect finish make a practice piece and template from that. Make sure you cut you miter joints at exactly the same angle no matter what. Cut it long and then....Fit,cut,fit,cut,fit,cut,etc. 1 Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted April 4, 2019 Share Posted April 4, 2019 Here you go: https://www.triangle-calculator.com/?what=sss&a=20&b=15&c=13.228&submit=Solve Assumption: The height of each angled piece need to be 15" to end up with 50" total (given the center piece is 20" vertical) 1 Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted April 4, 2019 Share Posted April 4, 2019 (edited) e Edited April 4, 2019 by hanksjim1 mistake Quote Link to comment Share on other sites More sharing options...
babadono Posted April 4, 2019 Share Posted April 4, 2019 Do you care about the dimension from front to back? And right now you have 3 pieces 20" in length and all with square edges? And remember if you want the pieces to all be the same depth at the angle joints you will have to figure the angle and make half of that angle cut on each piece. Quote Link to comment Share on other sites More sharing options...
wvu80 Posted April 4, 2019 Share Posted April 4, 2019 Two out of three drummers can't do math, but the other half can. Translation: You don't want to ask me. Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted April 4, 2019 Share Posted April 4, 2019 You could cut each piece with a 69.3 degree angle, where they join, to solve the width issue... Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted April 4, 2019 Share Posted April 4, 2019 I'm tired (just finished working) but I think 135 degrees each, assuming that the top and bottom are 45 degrees. Quote Link to comment Share on other sites More sharing options...
Jeff Matthews Posted April 4, 2019 Share Posted April 4, 2019 Anyone remember geometry? Do I win a toaster? Quote Link to comment Share on other sites More sharing options...
joessportster Posted April 4, 2019 Author Share Posted April 4, 2019 Thanks Guys Plan put an 18" driver on top and bottom for open baffle bass augmentation, Put the 15" Full range in the center. The diagram is a side view of the beams i will then place the panels with drivers on the inner side. the lower bass driver will angle up slightly, the upper bass driver will angle down slightly and the FR driver in the center will set 90 degree to the floor firing straight out at the listener at least thats the plan for now depth front to back is of no consequence. 2 hours ago, hanksjim1 said: Here you go: https://www.triangle-calculator.com/?what=sss&a=20&b=15&c=13.228&submit=Solve Assumption: The height of each angled piece need to be 15" to end up with 50" total (given the center piece is 20" vertical) yes center is 20 so the top and bottom would have 15" of rise but be 20" deep / long to fit the 18" drivers 2 hours ago, 314carpenter said: In my experience the math will only get you close. For a perfect finish make a practice piece and template from that. Make sure you cut you miter joints at exactly the same angle no matter what. Cut it long and then....Fit,cut,fit,cut,fit,cut,etc. Been here done that many times Quote Link to comment Share on other sites More sharing options...
joessportster Posted April 4, 2019 Author Share Posted April 4, 2019 6 minutes ago, Jeff Matthews said: Anyone remember geometry? I sure dont Quote Link to comment Share on other sites More sharing options...
Jeff Matthews Posted April 4, 2019 Share Posted April 4, 2019 8 minutes ago, joessportster said: I sure dont Now that you also know the lengths of all 3 sides, you better be sure your drivers and any other stuff can fit into the enclosure. You didn't really say where the back would be. Just be careful to know that you need to plan to where there is enough depth to install the components. Quote Link to comment Share on other sites More sharing options...
joessportster Posted April 4, 2019 Author Share Posted April 4, 2019 6 minutes ago, Jeff Matthews said: Now that you also know the lengths of all 3 sides, you better be sure your drivers and any other stuff can fit into the enclosure. no enclosure, Open Baffle...................Thanks Quote Link to comment Share on other sites More sharing options...
Ceptorman Posted April 4, 2019 Share Posted April 4, 2019 Pie R Square. Quote Link to comment Share on other sites More sharing options...
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