06RTCharger Posted December 29, 2018 Report Share Posted December 29, 2018 Been messing around with sketchup all day after watching a few youtubes about how to use sketchup free. The 2018 version. Heres my first attempt at really trying to use this program to create a design. I went with a single 15 because i didnt think there would be enough volume for two, but its looking more possible after i found the volume. Are my findings on the internal volume of this design correct?? 6.3 cubes? Ofcourse i know i have to account for sub displacement, port displacement and bracing displacement. Any thoughts? Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 The sub baffle is slanted toward the middle of the box. So the top panel is 2inches back/inward compared to the bottom panel. Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 Im thinking theres a super easy way to find the internal volume with the way i made the face of the box. Sketchup gives me the Area of the face in square feet, i can use that to find the cubic feet right? Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 This is what i did on my notes, am i correct? Finding enclosures air volume (cubic feet) with an inner face Area of 5.2207 square feet. Turn Area into square inches by multiplying by 144 (12inchX12inch=144) 5.2207X144=751.7808square inches 2. Face Area is now 751.7808 square inches, now to get cubic inches, multiply by the depth (box is internally 14.5inch deep/wide). 751.7808X14.5=10,900.8216cubic inches 3. Now to turn cubic inch into cubic feet, divide cubic inch total by 1728 (12x12x12=1728). 10,900.8216/1728=6.308345833333333 4. The internal air space/volume of the enclosure is 6.3cubic feet. 5. A few more things need to be included and deducted from that volume still. Which is the Sub displacement, Port displacement and also any bracing. Link to comment Share on other sites More sharing options...
audiofanaticz Posted December 29, 2018 Report Share Posted December 29, 2018 Cant remember, but there is a plug-in or method for sketch. forget what it is. Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 This section is where i plan to put a Bigass brand Aeroport when i figure out what size port would work best. The sub is firing back and the port fires forward. Middle console box. Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted December 29, 2018 Report Share Posted December 29, 2018 Your method for using SketchUp to determine internal volume is exactly how I do it. Works great. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
06RTCharger Posted December 29, 2018 Author Report Share Posted December 29, 2018 51 minutes ago, Triticum Agricolam said: Your method for using SketchUp to determine internal volume is exactly how I do it. Works great. What do you think about that volume for a single 15 on 1500-2000. Is that too big of a box? I still need to deduct for sub, port and bracing displacement. Link to comment Share on other sites More sharing options...
06RTCharger Posted January 2, 2019 Author Report Share Posted January 2, 2019 Does this port length calculator seem accurate? Then went and used the triticum port area calculator with varrying power 1500-2000-2500-3000. But same net volumes and same tuning. Optimal Port areas came out to range from 61square inches at 1500watts and 87 square inches at 3000watts. Link to comment Share on other sites More sharing options...
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