True / False 

1)     Clamping pressure spreads from the clamp to the workpiece at a 45 degree angle
 False: it forms a triangle at 45 degrees to each side, so 90 degrees total

2)     Using a table saw fence and miter gauge in combination is perfectly safe
 False: this can pinch the workpiece and cause kickback

3)     Pieces cut with the radial arm saw should be set to fall away from the blade
 True

4)     A dado stack consists of blades and various size chippers which can be used to set the width of the stack
 True

5)     220 grit is considered a coarse sandpaper, while 1000 grit is considered fine sandpaper
 False: 220 is also considered fine grit

Short Answer 

1)     What is the purpose of leaving a horn above the mortise on a stile?
 The horn provides extra strength while the tenon is being fitted and glued, avoiding any damage to the mortise until the joint is finished and glued up. Then the horn can be removed.

2)     List 3 different types of chisels
 Bevel Edged
 Mortising Chisel
 Firmer Chisel
 Paring
 Gouge

Review Quiz

 

Multiple Choice (1 mark each)

1.    An appropriate bed angle bevel up block plane angle is….

A. 20-25 12-20 degrees           B. 40 degrees               C. 37 degrees           D. 30 degrees

 2.  A screw should be how many times the length of the thickness of the first          piece?

            A. 2                              B. 2 ½                              C. 3                                D. 3 ½

3.  In our shop we mostly glue up with…

             A. Hide Glue              B. Epoxy                           C. Poly Urethane        D. PVA

True or False (1 mark each)

4. A marking gauge is used to mark line across the grain.

TRUE       FALSE

5. A reasonable height for a table saw blade is 3/8”- ½” above the material. Depends on tooth size and direction of blade force - better higher than lower

TRUE      FALSE

6. To use the table saw to rip a rough piece of lumber you must first joint a face and edge.

TRUE      FALSE

Short Answer

7.  List 4 basic concerns/precautions you should take into consideration before gluing up to piece of wood. (half mark each)

-Grain direction, clean surfaces, m/c, flat and true surface

8. Name 3 qualities for good joints. (1 mark each)

- Precision, Proportion, and technique

9. Describe the function of the chip breaker and how it helps us. (4 marks)

- A properly set chip breaker can reduce tear out and leave a finer finish, when the blade cuts the fibres and they start to ride up the blade, the chip breaker pushes them over rolling them into a tighter roll rather then having a big long straight shaving.

Name 3 types of finishes (3 marks)

-stain

-linseed oil

-shellack  

Which is the strongest carcass joint?(1 mark)

-Half lap joint

Is a #5 jack plane bevel up or down?(1 mark)

Bevel down

Explain how to do a dovetail joint using hand tools based on your experience. (8 marks)

When making a dovetailed joint, the process includes planning, laying out, cutting, and making sure the joint fits and works. First of all, keep in mind what kind of look you want, and to do this, you have to keep in mind the proportions, pin sizes, tail sizes, the angles of the dovetails and joints and personally I don't like half tails or half pins, so I like to size them accordingly to my stock. Next is the layout. Using layout tools such as a marking knife or a marking gauge alongside a precision square, making kerfs and lines to guide the hand cut joint will be useful for the hand cutting portion of this process. Next, when cutting a dovetail joint, you  can use tape to help guide the cutting. When cutting make sure to cut on the line so that the blade thickness takes off that 16th to make the joint fit. If the joints have the same dimension pin and holes, they will be very tight and might not fit, so cutting on that line mitigates clean up on the edges of the tails and pins. After the cuts  are made, either use a coping saw or a chisel to remove the material. Once done, clean up the edges and make sure the corners are flush.

How can finish be applied? (2 mark)

Using a rag or a brush and use safety precautions as needed.

Explain why we need to properly space clamps with sacrificial blocks when clamping.    (5 marks)

When clamping, the point is to join 2 pieces of wood using glue as an adhesive. The point of the glue is to emulate lignin if it was kiln dried in a sense as it hardens. The glue is applied, clamped and since liquids can’t be compressed, the greater clamping pressure will cause the glue to enter the wood and spread, and the pressure will hold it together and then the glue will set. To properly glue a piece together using clamping pressures, use blocks to properly distribute the clamping pressure. The clamp’s pressure is cone shaped, so if a 2’’ block for example is placed on each side of the wood being glued together, the cone’s projection will be larger thus there being more pressure applied to the glueing.