Please answer question #3:\ 3. Assume you are using vat polymerization with photopolymer HDDA (use

D_(p)

and

E_(c)

from\ prob. 2). A

40mW

laser with beam diameter of

200\\\\mu m

scans at a particular velocity to\ polymerize a line. (a) What should be the scan speed to create a long line with a\ maximum exposure

E_(max)

of

70m(J)/(c)m^(2)

? (b) Compute the line width

L_(w)

and cure depth

C_(d)

.

2. Figure below shows the effect of energy dose (E,mJ/cm2) of a UV laser on cure depth (mm) for three separate monomers. Calculate Dp and Ec for all three materials using these plots along with the following equation. Cd=Dpln(E/Ec) 3. Assume you are using vat polymerization with photopolymer HDDA (use Dp and Ec from prob. 2). A 40mW laser with beam diameter of 200m scans at a particular velocity to polymerize a line. (a) What should be the scan speed to create a long line with a maximum exposure Emax of 70mJ/cm2 ? (b) Compute the line width Lw and cure depth Cd. 2. Figure below shows the effect of energy dose (E,mJ/cm2) of a UV laser on cure depth (mm) for three separate monomers. Calculate Dp and Ec for all three materials using these plots along with the following equation. Cd=Dpln(E/Ec) 3. Assume you are using vat polymerization with photopolymer HDDA (use Dp and Ec from prob. 2). A 40mW laser with beam diameter of 200m scans at a particular velocity to polymerize a line. (a) What should be the scan speed to create a long line with a maximum exposure Emax of 70mJ/cm2 ? (b) Compute the line width Lw and cure depth Cd