Day 16 of PLTW Notebook Assembly of Toy Train

We are now going to assemble a model train on inventor.  I believe this train will take lots of time just to build the pieces assembling it will maybe be longer.

1.      Why are drawings composed of different line conventions?

 Their composed with different line conventions because it allows extrusions to be done easier and revolves as well.  

2.      What is the purpose of a sectional view?

 A sectional view gives you a dimensional view of a part of a shape.

3.      What is the purpose of an auxiliary view?

 It's purpose is to show a full dimensional view of an inclined shape.

4.      Why are symbols used instead of words to identify hole types?

 If it were words they would be long and hard to memorize.

5.      What advantage is there to using algebraic equations instead of numerical values when defining the dimensions of a CAD model?

 Algebraic equations may be more exact and less work than using a numerical value.

6.      What three types of constraints can be applied to CAD sketches or models?

 The three main types are Mate,Angle, and Insert.

7.      What advantages do CAD drawings have over paper sketches?

Cad Drawings are neater and more exact than hand drawn paper sketches.