With the .3 platform, there are a multitude of hinge pin inserts to adjust the front kickup (anti-dive) and sweep as well as the rear toe and anti-squat.
In addition to adjusting these suspension angles, these adjustments can also affect the roll centers.
Use this as a stand alone app to calculate the suspension angles, or also use it along with the RC Crew Chief R/C Chassis Tuning software to fine tune the front and rear roll centers.
PM me with your email address if you'd like to try this Windows app.
The angles in the blue circles represent those achieved by using the Center Dot inserts (pills).
Red circles display the angles achieved when changing the hinge pin inserts. Yellow circled values can be used with RC3 software to calculate the Roll Center change.
Screen shot of the front suspension of an EB48.3 in RC3
Red "blob" of dots, when zoomed up, represents the 81 different locations achievable using the different hinge pin inserts.
Up close of the 81 choices