To change the units, Go to File -> Prepare-> Model Properties and then from the model properties windows, click on Change under units. There are 3 ways you can change the units in which 2 will be used for changing the default setting.
ProE/ Creo creates versioned files every time you save a part, drawing, assembly, etc. That means if you save a part 10 times you can see 10 part versions in the folder it is saved.
To delete old versions of any part, drawing or assembly alone, just open it in the ProE/ Creo and then open the file menu from the main menu (See the picture below). You can see an option called delete. If you expand this you will see two options.
Overwriting dimensions is a very useful and handy option. We can replace the default dimension with any other number or text. Here we will see how to overwrite an dimension and some of the usage. Overwriting a dimension with any other number is not preferable but it is very useful to make notes like the ones shown in the below pictures.
Involute curve also known as evolvent curve is a kind of differential curve. In mechanical engineering this curve is used a lot in gear design. This curve is used to get the gear tooth profile and when two gears of this profile mesh, the instantaneous contact point is only one and it moves along the curve profile. This property is known as line of action or line of Contact or pressure Line and this is why it is used extensively in gear design.
Open the note properties. (To do that, right click on note and select properties or double click the note). On the text style tab, check the “Break crosshatching” in. This will break the hatch. The margin input refers to the empty space around the text.