box calcs other than RE box calc?

[Guest jbinn]

RE box calculator wont make a box like i want... I want it to be subs firing up port firing back... except it just does everything forward. how do you guys do 3d sketches of different box types/tuning.

[k3n12ock]

http://www.stevemeadedesigns.com/board/topic/38791-torres-exposport-box-tuning-calculator-updated-310/

http://www.carstereo.com/help/Articles.cfm?id=5

http://www.ajdesigner.com/speaker/bcv.php

http://www.rockfordfosgate.com/rftech/box_wizard.asp

http://www.hometheatershack.com/forums/enclosure-volume-calculator/

http://www.diyaudioandvideo.com/Calculator/Box/

[Guest jbinn]

ok but none of those allow me to position the port where i want it/subs am I missing something?: ive seen people have sketches of like perfect boxes I want a slot port in the middle with the subs on each side of it on the top, would i just make a normal box but just put the subs on top instead of in front?