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29.  The biggest advantage of a Hot Runner Mold is waste free (no runner).

Bonus 1   Why do they surface grain or etch a plastic injection mold, what is the purpose?

7.  Date grids or codes are important on a plastic part that is used in a car, in case of a recall, they can isolate suspect parts.

19.  The correct vent depths for the following plastics recommended by material supplier     – ABS   .001-.0015″     – PP    .0005-.0012″     – Glass Filled Nylon  .001-.0025″

33.  Temperature on a hot runner system in a plastic injection mold, each zone is controlled by an individual heater and temperature is controlled by a thermocouple.

5.  It is important to have the cavity number on a multi cavity plastic injection mold, so you can troubleshoot problems or issues.

1.  Making a plastic part is similar to what operation that we discussed in the PP during week 1?

2.   How many Major OEM (original Equipment Manufacturer) Automotive Makers are within 300 miles of Tuscaloosa, discussed week 1.

9.  During the mold design, that is the stage when you decide gate type and location, also a Mold FLow Simulation would give an idea to fill of the part (good starting point).

Always have at least two saw teeth contacting the work when sawing.