5. If you designed a part with an overall width dimension of 1.250 inches and printed it on the same 3D printer using the same f
ilament, what would you predict the width of the printed part would measure?
6. If the width of your part had to measure between 1.220 inches and 1.255 inches to operate properly, would you adjust the width dimension of your CAD model to improve the chances of the 3D-printed model being within these limits? Explain your reasoning.
6. If the width of your part had to measure between 1.220 inches and 1.255 inches to operate properly, would you adjust the width dimension of your CAD model to improve the chances of the 3D-printed model being within these limits? Explain your reasoning.
2 answers:
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Answer:
4.6 mm
Explanation:
Given data includes:
thin-walled pipe diameter = 100-mm =0.1 m
Temperature of pipe = -15° C = (-15 +273)K =258 K
Temperature of water = 3° C = (3 + 273)K = 276 K
Temperature of ice = 0° C = (0 +273)K =273 K
Thermal conductivity (k) from the ice table = 1.94 W/m.K ; R = 0.05
convection coefficient =2000 W/m².K
The energy balance can be expressed as:
where;
------------- equation (1)
------------ equation(2)
Equating both equation (1) and (2); we have;
Replacing the given data; we have:
r = 0.0454
The thickness (t) of the ice layer can now be calculated as:
t = (R - r)
t = (0.05 - 0.0454)
t = 0.0046 m
t = 4.6 mm