Stock Preperation

Warm-Up

Warm-Up

• Explain the difference between the USE of the JOINTER and the SURFACE PLANER

Jointer

• Used 1st in the Stock Prep Process

• Straightens and Flattens the Wood– Makes STRAIGHT LINES

Surface Planer

• Used 2nd in the Stock Prep Process

• Creates a PARALLEL face to the opposite STRAIGHT face created by the Jointer

• Allows you to make the lumber whatever THICKNESS you want– Sometimes called a Thickness Planer

Warm-Up

• Explain how to fix a board that has a serious cup, BEFORE you start jointing.

Dealing with a Cupped Board

Warm-Up

• Explain how to fix a board that has a serious BOW before you use the Jointer?

Dealing with a Bowed Board

Cut Board in Half

Warm-Up

• What is the formula for calculating Board Foot?

• What is the UNIT?

Answer

• When working in ALL inches:–W x L x H/144

• Cubic Inches because it is a VOLUME measurement

Warm-Up

• What do you add to the FINISHED WIDTH, LENGTH, and THICKNESS to get the ROUGH DIMENSIONS?

Finished to Rough Dimensions

• You MUST use the ROUGH DIMENSION when figuring COST– You need 1” thick material to get ¼”, ½” or ¾”

thick stock

• Basic Rules of Thumb:– Add ½” to the WIDTH– Add 2” to the LENGTH– Add ¼” to the THICKNESS

DEPENDS ONCONDITION OFLUMBER

Warm-Up

• After using the Jointer and Planer what is the next POWER TOOL that needs to be used?

• What does type of edge does it create?

Answer

• The TABLESAW is the TOOL that is used after the JOINTER and PLANER

• It creates a PARALLEL edge

Tomorrow

• I am buying the PIZZA

• If one student, in either class, breaks a rule then NO ONE will get pizza!!

• I will make sure everyone else knows who broke the rule

Rules

• Destruction of ANY property

• No Smoking

• Not Allowed to Leave the House without Permission

• ALL school rules apply

• Grafitti

• Stealing Property, Tools or Materials

Tomorrow

• Report to the Shop at 9am

• No open shoes

• No Shorts

• Need a Tape Measure

• Need a Pencil

• Need your Safety Glasses

Warm-Up

• After using the Jointer, Planer and Table Saw, what is the next POWER TOOL that needs to be used?

• What does type of cut does it create?

Answer

• You NEED to use the Sliding Compound Miter Saw or Radial Arm Saw after the Jointer, Planer and Table Saw– Cut to Final Dimensions

• The Sliding Compound Miter Saw creates SQUARE cuts to a STRAIGHT edge

1st Things

• Finish Downhill Race Track– Chris, Kelvyn, Justin

• Clean-Up Shop– Organize– Mirrors, etc.

Tomorrow

• Same Rules Apply– Tape Measure– Pencil– No Shorts– No Open Toed Shoes

• Bring a Lunch

Warm-Up

• Why is it important to sand on the LEFT side of the Disc Sander?

Answer

Always Sand on the LEFT of the Disc:

• The Disc is spinning COUNTER CLOCKWISE so it will push the Work Piece INTO the table

Warm-Up

• What limits the size of the work piece you can sand on the Belt/Disc Sander?

Answer

• The WIDTH of the Belt

• ½ the DIAMETER of the Disc

Warm-Up

How deep do you make a finger joint?

Answer

The DEPTH of the Finger Joint is determined by the THICKNESS of the material being joined

Warm-Up

•Why is a DOVETAIL joint better than a FINGER JOINT?

Answer

• A Dovetail Joint is stronger than a Finger Joint because it can ONLY be pulled apart in ONE DIRECTION

Warm-Up

• What is the difference between a DADO, RABBET and a GROOVE?

Dado

• U-Shaped Recess ACROSS the GRAIN

Rabbet

• L-Shaped Recess

Groove

• U-Shaped Recess WITH the GRAIN

Warm-Up

• Explain the importance of DRY assembling your project BEFORE final assembly

Importance of Dry Assembly

• Check to make sure ALL measurements are correct

• Check to see if everything fits

• Gives you time to make correction

• Gives you PRACTICE at assembling project– Figure out how to clamp it, etc

• Gives you a chance to take measurements

Warm-Up

• Why is it important to NEVER sand an edge that will be joined to another face or edge?

Answer

• A machine cuts a SQUARE and STRAIGHT edge

• You CANNOT hand sand an edge PERFECTLY SQUARE or STRAIGHT

Warm-Up

• Explain WHERE and WHEN you would use the following Joints:–Rabbet

–Dado

Joinery Uses

• Rabbet: – simple case construction– Joining at 90 degrees– Conceals End Grain– Prevents movement in 1 plane

• Dado:– Mount Shelves in Cabinets and Bookcases– Joining at 90 degrees– Prevents movement in 2 planes

Warm-Up

• Explain WHERE and WHEN you would use the following Joints:–Dovetail

–Groove

Joinery Uses:

• Dovetail:– Reinforced Joint– Prevents movement in ALL planes– Drawers, Case Construction, Knock Down

Furniture

• Groove:– A U-shaped Slot WITH the grain– Drawer or Case Bottoms– Prevents movement in 2 planes

Warm-Up

• What is the difference between a POSITIONED, NON-POSITIONED and a REINFORCED Joint?

NON-Positioned Joint

• Two components meet without any position or locking effect

• Only glue or fasteners hold the joint

• Weakest

Positioned Joint

• One or both components have a machined contour that holds the assembly in place

• Nails and Glue help to strengthen joint

• Stronger than NON-positioned joints

Reinforced Joint

• Additional element besides glue that helps hold the joint together– Dowels, biscuits, splines, glue blocks, nails,

screws, etc.

Warm-Up

•What is the difference between a Half-Blind Dovetail and a Thru-Dovetail?

Half-Blind Dovetail

• Used on Drawer Boxes and Case Construction

• Conceals the End Grain on one Side

Thru-Dovetail

• Stronger

• Shows End Grain on BOTH sides

• Case Construction

• Decorative

Warm-Up

• List the 3 MOST important stationary power tools used in stock preparation

Stock Prep Tools

• Jointer–flattens and straightens

• Surface Planer–makes opposite FACE parallel to

jointed FACE • Table Saw

–makes opposite EDGE parallel to jointed EDGE

Warm-Up

• Explain the difference between HEARTWOOD and SAPWOOD

Heartwood

• Inner Portion of a Tree

• Usually Darker

• More Stable

• More Expensive

• Dead part of a living Tree

Sapwood

• Outer Portion of a Tree

• Usually Lighter

• Less Stable

• Less Expensive

• Living part of a Tree

Warm-Up

• Name 3 Tools you can use to create a DADO joint

Tools for creating a DADO

• Router– Need Fence or Straight Edge

• Sliding Compound Miter Saw– Need Jig and Depth Stop

• Table Saw– Need Dado Blade– Miter Gauge or Sliding Table

• Radial Arm Saw– Need Dado Blade

Warm-Up

• What is the difference between a STACKED Dado Blade and a WOBBLE Dado Blade

Answer

• Stacked Dado Blade – Has several cutters that you “stack” together to create the width needed

• Wobble Dado Blade – has ONE blade that you mount at an ANGLE to create the width needed

Warm-Up

• Which HANDSAW would be the best to use if you needed to cut a DADO by hand?

Answer

• The BACKSAW is the best tool to use to cut the shoulders of the DADO by hand

Shoulder Cut

Warm-Up

• After applying a coat of shellac AND allowing it to dry, what do you do next?

Answer

• Scuff Sand with 220grit–Very Lightly

–Finish should powder (become white with dust)

Warm-Up

• When using the Chisel to remove material, which way should the BEVEL of the chisel face?

BEVEL

Answer

• The BEVEL should ALWAYS face down or to the WASTE side of the cut

Warm-Up

• List the machines you should use to sand your project in order of use–Most Aggressive to Least

Aggressive

Sanding Machines

1. Belt Sander or Belt/Disc Sander

2. Random Orbit Sander

3. Dual Action Sander

4. Hand Sanding with Wooden Block

Warm-Up

• Why is it important to use the correct Sanding Machine and Sandpaper to sand your project?

Answer

• Saves you time

• Better Job

• Doesn’t Ruin your Project

• Better Finish