Guages

Question 1

What are the advantages of gauges?

Answer 1

Good for rough work

Question 2

What are the disadvantages of gauges?

Answer 2

Parallax error easy to sit pin in wrong decision
Grain tends to make pin wander
Expensive on roller wheel cuts into grain
Not extremely accurate

Question 3

Describe a marking gauge?

Answer 3

Has a fence that can be moved and locked along a beam. Single pin to scribe one line. It is used primarily for scribing tenons and dovetail shoulder lines. The pin is fixed and the fence can be locked.

Question 4

Describe a cutting gauge?

Answer 4

Like a marking gauge but uses a knife on a roller.

Question 5

Describe a mortise gauge?

Answer 5

2 pins to scribe both sides of a mortise simultaneously. Some have a pin on one side so it can be used as a regular marker.

Question 6

What is an engineering tolerance?

Answer 6

The range of values that are accepted by the engineer for the part to be made.

Question 7

What is the nominal value?

Answer 7

The desired dimension

Question 8

What would a nominal value of 10 with a tolerance of 0.1 look like.

Answer 8

10+/-0.1

Question 9

What would a nominal value of 10 with a lower limit of 0.1 be.

Answer 9

10 +0
10 -0.1

Question 10

Problems with a Go or NO go gauge?

Answer 10

Gauge wears down over time.
Does not check for concentricity i.e whether it is buckled in some way.
Have a non-perfection mentality

Question 11

What is a go or no gauge?

Answer 11

An inspection tool used to check a workplace against its tolerated values via a go/no go test.