wood 2 box project intro. skill objectives stock preparation –jointer –surface planer –table...
TRANSCRIPT
Skill Objectives
• Stock Preparation– Jointer– Surface Planer– Table Saw
• Joinery– Finger Joint– Rabbet– Dada– Sliding Dovetail
Paper Work
Due Date: April 20th (4 weeks)
• Start Timesheet – 3/20 ‘Planning’
• Complete Bill of Materials
• Start Procedure Sheet– Very Important because of the
NUMBER of Parts
Parts List
• Three Parts List Tables on the Shop Drawings
– Upper Right Hand Corner
1. Drawer Assembly Parts List
2. Box Assembly Parts List
3. Box Lid Assembly Parts List
1 BF = W x L x H/144• ALL MEASUREMENTS MUST BE IN
INCHES• W WIDTH ACROSS THE GRAIN
– Always 1st Number
• L LENGTH WITH THE GRAIN– Always 2nd Number
• H THICKNESS OF THE WOOD– Always 3rd Number– If there isn’t a 3rd Number it is ¾”
Board Feet
• 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
Example
• Finished Dimension: 3 ¾” x 16” x ½”• Rough Dimension: 4 ¼” x 18” x 1”
W X L X H/1444.25” x 18” x 1”/144
76.5”/144BF=.53125
WOOD = MAPLE.53125 X $3.10 = $1.65
Remember
• Use ROUGH DIMENSIONS
• Double Check the NUMBER of Parts
• Double Check you are using the CORRECT price for the Wood–You will have more than 1 wood
type
How Much $$$$$$$
Wood Available:
• Soft Maple $3.10 bf
• Cherry $4.90 bf
• Poplar $2.85 bf
• Bubinga $15.90 bf
• Red Oak $3.20 bf
Safety Tests
• You must have passed the following tests with a 100%– Jointer– Surface Planer– RAS– Sliding Compound
Miter Saw
Selecting Your Stock
• Wood is EXPENSIVE• ASK, DOUBLE
CHECK, TRIPLE CHECK BEFORE YOU DO ANYTHING!
6” X 36”6” X 20”
Available Wood
• Soft Maple $3.10 bf
• Cherry $$$$0 bf
• Poplar $$$$$ bf
• Bubinga $15.90 bf
• Red Oak $$$$$ bf
Jointing & Planing
1. Joint one FACE and one EDGE
2. Surface Plane to 5/8” THICK
STOP3. Layout your Pieces on your Wood
1. Like a JIGSAW Puzzle (Best Use of Wood)
Ripping on Table Saw
1. Review your Layout with Mr. Thuman2. Follow Instruction given (INDIVIDUAL):
1. RIP on Table Saw2. Crosscut on SLIDING COMPOUND MITER
SAW1. Remember to SQUARE UP ONE END!!!
YOU WILL BE LOSING POINTS FOR MISTAKES!!
Cutting Accuracy & Time
• ACCURACY IS IMPORTANT IF YOU WANT YOUR BOX TO LOOK GOOD!!!
• TAKE YOUR TIME AND DO IT CORRECTLY THE 1ST TIME!
How Much $$$$$$$
Wood Available:
• Soft Maple $3.10 bf
• Cherry $4.90 bf
• Poplar $2.85 bf
• Bubinga $15.90 bf
• Red Oak $3.20 bf
Safety Tests
• Andrew Aberts
• Tera Baker
• Doug Blank
• Paul Hassett
• Chad Lawson
• Billy Rittelmeyer
• Mike Shafer
Finished Dimensions
• Cutting ALL of your pieces will be like a JIGSAW puzzle– Best USE of material
• I will review and give instructions to EACH student BEFORE you start RIPPING or CUTTING anything!!– Reduces Mistakes and wasted MONEY
Joinery Layout
• Once ALL pieces are CUT to the EXACT Finished Dimension
• Label EVERY Piece– Name– Best Face, Top, Bottom, Left, Right, etc.
• Begin Laying Out ALL joinery– Rabbets, Dados, Grooves, etc– Finger Joints, Sliding Dovetails
Procedure Form
• EVERYONE MUST complete the Procedure Form
• Each Step needs to be SIGNED OFF by Mr. Thuman
Joinery Layout
• Once ALL pieces are CUT to the EXACT Finished Dimension
• Label EVERY Piece– Name– Best Face, Top, Bottom, Left, Right, etc.
• Begin Laying Out ALL joinery– Rabbets, Dados, Grooves, etc– Finger Joints, Sliding Dovetails
Missing Pieces?
• Make sure you have ALL your pieces– See Mr. Thuman if you don’t– Share between Students
Objective
• Understand BASIC concepts of Finger Joint Layout
• Understand use of Finger Joint JIG
• Cut Finger Joints using Table Saw
Finger Joint
A finger joint or box combing or box joint is a woodworking technique used to join two pieces of wood at right angles to each other. It is much like a dovetail joint except that the pins are square and not angled and usually equally spaced. The joint relies on glue for holding together as it does not have the mechanical strength of a dovetail
Use and Benefits
• Case Joinery• Drawers• Anything that needs
to be joined at 90 degree angles
• Strength• Simplicity• Decorative• Speed• Good in Compression• Good in Shear• Bad in Tension
Finger Joint Layout
• Equally Divide Width of Work Piece into an EVEN number of Fingers
• Depth of Joint equals Thickness of Work Piece
• Width of Finger is determined by Strength or Aesthetic
Sliding Jig
• Holds Stock Vertically– To Mill End Grain
• Correctly Spaces Finger Joints
• This one makes ONLY ½” wide Finger Joints
• Any stock used must be EQUALLY DIVIDABLE by ½”
Sliding Dovetail
• Method of joining 2 pieces of wood at 90 degrees
• Creates a Structural AND Mechanical Connection
• Can only be pulled apart in 1 direction
Tools Needed:• Hollow Chisel
Mortiser• Band Saw• Chisel• Square• Hammer
1st Step
• Use HOLLOW CHISEL MORTISER to make a SQUARE MORTISE across the BACK face of the DRAWER FRONT
• CENTERLINE of
MORTISE is ¾” from EDGE
¾”
2nd Step
• Cut PIN on both DRAWER SIDES
• Use Layout JIG for SHOULDER MARK
• Use Layout JIG for CHEEK Depth
4th Step
• Using PIN as guide, trace the angles onto DRAWER FACE
• Use a CHISEL and SLOWLY angle the cheeks of the square mortise
Objective & Tools
• Correctly and Safely cut the required Dado, Rabbet and Groove for the Finger Joint Box Project
• Review Layout of needed Joinery
• Back Saw• Hammer• Chisel• Square• Bench Hook
• Table Saw
Drawer
Box SidesOnly
Drawer Side (x2)
• Completed AFTER Dovetail Pin• Need a MATCHING PAIR (Opposite)
Rabbet: ¼” wide x 1/8” deep
Dado: ¼” wide x 1/8” deep
¼”
Box Bottom (x4)
• After Finger Joints are milled
Groove: ¼” wide x 5/16” deep
Cannot go thru a Finger
Demonstration
• I will demonstrate how to SAFELY do these cuts on the TABLE SAW and the using the Back Saw AND Chisel on the Drawer
Materials Needed
• Sander (Dual Action)
• Sand Paper– 80grit, 100grit, 120grit, 150grit
• Bucket of Water AND Rag
• Glue
• Clamps
• Index Cards for Shims
Procedure
1. Sand ALL INTERIOR surfaces of drawer parts
2. Sand ALL surfaces that would be difficult to sand when assembled
3. BE CAREFUL not to round over and edges or ruin any of your Joinery
4. NEVER Sand any Joints or Surfaces that will be hidden by a joint
Gluing & Clamping
1. Glue and Shim if needed the SIDES to the FACE
1. Make sure they are SQUARE to FACE
2. Glue and Clamp BACK into DADOs1. Make sure ENTIRE drawer is SQUARE
2. Measure Diagonals – need to be equal
3. Clean up Glue with Water
4. Measure and Fit BOTTOM Panel
Center-Line of Clamp ALIGNED with Center-
Line of Drawer Side
Make sure Shoulders are TIGHT and Sides are
SQUARE
Center-Line of Clamp ALIGNED with Center-
Line of Drawer Side
Make sure Shoulders are TIGHT and Drawer is
SQUARE
Procedure
• Select your BEST front/back bottom of box
• Install in JIG on CNC machine
• Run Program
• Square up Opening or Round Corners of Drawer Face to match opening– Use a FILE or SANDPAPER on a Block of
Wood
Procedure
• Make sure ALL parts are CUT to FINISHED Dimensions
• Make sure ALL joinery is COMPLETE– Groove for Bottom– Rabbets– Finger Joints– Dado
• Carefully CLAMP ENTIRE box together
Check for Quality
• Everything is Square– Measure Diagonals– Use a Square
• Gaps or Cracks at Joints
• Top AND Bottom MATCH
• Adjust Finger Joints IF NEEDED– File or Sand Paper WRAPPED around a Stick
• CAREFULLY take apart
Materials
• Glue
• Bucket of Water and Rag
• AT LEAST 4 Clamps– Maybe More
• Make sure you CLEAN UP ALL glue
Materials
• All Dividers NEED to be fitted AND Cut to FINAL dimensions– USE your BOX not the measurements on the
Plans
• Bucket of Water and Glue
• Tape or Thin Scrap Wood to use as WEDGES
Project Due Today
Last Day to Work IN Class
After School Work
Mon, Wed, Thurs, Fri 2:30 to 3:00
Tues 2:30 to 4:30
What’s On the Test?
• Stock Prep– Four-Square
• Joinery– Finger Joints, Dado, Rabbet, Groove, Dovetail
• Tool Use– Jointer, Planer, Table Saw, Radial Arm Saw, Sliding
Compound Miter Saw
• Measurement– Adding and Dividing Fractions– Reading a Ruler– Reading a Machine Scale
ALL QUESTIONS FROM WARM-UPS
TEST IS OPEN NOTE