Formula Help

[gogetter]

Ok....sorry If This Isnt The Correct Forum For This....

What Is The Formula For Manual Decentration Of Pal Wearer?

Thanks!

[RustyS]

Not exactly sure what ur getting at. but A+DBL=FPD measure B for determine height.

[Fezz]

Not exactly sure what ur getting at. but A+DBL=FPD measure B for determine height.

FPD, then dived by two, subtract your mono pd=inset

Divide B by two, is the seg height higher or lower, = up or down placement.

Hope this is what your looking for!

[gogetter]

FPD, then dived by two, subtract your mono pd=inset

Divide B by two, is the seg height higher or lower, = up or down placement.

Hope this is what your looking for!

FPD=68
PPD=58
SEG=17
A=50
B=21
DBL=18.....SO IS THIS CORRECT

68/2=34-29=5(INSET) ?

21/2=10.5-17= -6.5 UP PLACEMENT ?

[braheem24]

FPD=68
PPD=58
SEG=17
A=50
B=21
DBL=18.....SO IS THIS CORRECT

68/2=34-29=5(INSET) ?

21/2=10.5-17= -6.5 UP PLACEMENT ?

It's right but I hope you're not placing a 17 seg in a 21 B frame and leaving them 4mm for distance;)

[Fezz]

And I hope that you are taking MONO pds, and figureing your decentration correctly!