Distortion Calculation

[aqazi81]

Hi,

Need to know which formula is correct for calculating distortion, as each one of these is calculating slightly different values.

 

[SteveSuffRIT]

Are these calculations from a trusted website (FTA) of from a custom written Excel spreadsheet?
Mylar base (0.007") of photopolymer relief plate (0.067") is dimensional stable and will not stretch.

 

[aqazi81]

Yes this excel sheet is downloaded from FTA website.

 

[rukspin]

Dear aqazi81, can you share the excel file. I can adjust some values and the result will be the same.

 

[aqazi81]

Dear aqazi81, can you share the excel file. I can adjust some values and the result will be the same.

I have attached the file, the main issue is the correct amount of distortion.

 

[arkay_desai]

(Cylinder Size - K Factor (Different for each thickness of the plate) / Cylinder Size ) X 100