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Woodwork Career Alliance Skill Standards

110

Considerations: Pre-Operation Checklist is a prerequisite for ANY operation.

Operator cleans tool and work area after use.

Clamps, biscuits, and glue are prepared for quick assembly.

Required OSHA approved personal protective equipment is worn.

Disengage from power source until everything is ready to begin cutting operation.

Lock-out/Tag-out procedure is in place and followed.

Section 010: Joinery & Assembly

Biscuit Joiner

Š 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Biscuit Joiner

010

111

Joinery & Assembly

Pre-Operation

Checklist Level 1:

Performance standard: ……Verifies stock is properly clamped (if required). ……Demonstrates proper holding of machine to prevent vertical or horizontal movement when engaging cutter head. ……Verifies dust collection operable/operating (if equipped).

Level 2:

Performance standard: ……Checks cutter for cleanness and replaces if needed.

……Meets Level 1 performance standard.

……Tests equipment for movement of cutter head (plunge and retraction into housing). ……Installs or adjusts fence. ……Adjusts machine for depth of cut appropriate to the biscuit size being used.

Level 3:

Performance standard: ……Sets up and calibrates fence for operation. ……Calibrates depth of cut setting. ……Makes a layout rod for biscuit placement. ……Meets Level 1 and Level 2 performance standards.

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Biscuit Joiner

010

112

Joinery & Assembly

Machine 90º Butt Jointed Corner (i.e., Shelf-To-Top Joint) Level 1:

Performance standard:

Given material properly prepared for machining, with joint location specified, execute the joint between a shelf and vertical end or divider to receive biscuits keeping the shelf flush with the front edge. Minimum of two biscuits per joint.

……Demonstrates ability to place cutter head ±.0156” (1/64”) [0.4 mm] of location mark.

……Angle of joint of any two opposing parts is within 0.5º of intended position.

……Uses layout rod or company standard to mark biscuit locations.

……Maximum gap caused by biscuit machining is 0.001” in joint between opposing parts after assembly.

Level 2:

Performance standard:

Given material properly prepared for machining, layout material for joints, set up machine, and execute the joint between a shelf and vertical end or divider to receive biscuits keeping the shelf flush with the front edge.

……Marks layout of the joint square to edge and within .0156” (1/64”) [0.4 mm] of intended position.

Level 3:

N/A

……Makes a joint face which is flush ±0.005”. ……Joins opposing parts within .0156” (1/64”) [0.4 mm] of intended lateral position.

……Marks center points for the biscuits on shelf and vertical within .0156” (1/64”) [0.4 mm] of intended position.

……Adjusts machine fence and guides to 90º setting. ……Meets Level 1 performance standard.

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Biscuit Joiner

010

113

Joinery & Assembly

Machine Intermediate 90º Joint (i.e., Fixed shelf to cabinet side) Level 1:

Performance standard:

Given material properly prepared for machining, with panel location laid out, execute the joint between a shelf and vertical face or divider to receive biscuits keeping the shelf flush with the front edge. Minimum of two biscuits per joint.

……Demonstrates ability to place cutter head ±.0156” (1/64”) [0.4 mm] of location mark.

……Angle of joint of any two opposing parts is within 0.5º of intended position.

……Uses layout rod or company standard to mark biscuit locations.

……Maximum gap caused by biscuit machining is 0.001” in joint between opposing parts after assembly.

Level 2:

Performance standard:

Given material properly prepared for machining, layout material for joints, set up machine, and execute the joint between a shelf and vertical face or divider to receive biscuits keeping the shelf flush with the front edge.

……Marks layout of the joint square to edge and within .0156” (1/64”) [0.4 mm] of intended position.

Level 3:

N/A

……Makes a joint face which is flush ±0.005”. ……Joins opposing parts within .0156” (1/64”) [0.4 mm] of intended lateral position.

……Marks center points for the biscuits on shelf and vertical within .0156” (1/64”) [0.4 mm] of intended position.

……Adjusts machine fence and guides to 90º setting. ……Meets Level 1 performance standard.

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Biscuit Joiner

010

114

Joinery & Assembly

Edge-to-Edge or End-to-End Joint (including flat faced miters) Level 1:

Performance standard:

Given material properly prepared for machining, execute the joint between 2 flat pieces to receive biscuits. Minimum of two biscuits per joint.

……Demonstrates ability to place cutter head ±.0156” (1/64”) [0.4 mm] of location mark.

……Angle of joint of any two opposing parts is within 0.5º of intended position.

……Uses layout rod or company standard to mark biscuit locations.

……Maximum gap caused by biscuit machining is 0.001” in joint between opposing parts after assembly.

……Makes a joint face which is flush ±0.005”. …… Joins opposing parts within .0156” (1/64”) [0.4 mm] of intended lateral position.

Level 2:

Performance standard:

Given material properly prepared for machining, set up machine and execute the joint between 2 flat pieces to receive biscuits. Minimum of two biscuits per joint.

……Marks layout of the joint square to edge and within .0156” (1/64”) [0.4 mm] of intended position.

Level 3:

N/A

……Marks center points for the biscuits on shelf and vertical within .0156” (1/64”) [0.4 mm] of intended position.

……Adjusts machine fence and guides to 90º setting. ……Meets Level 1 performance standard.

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Woodwork Career Alliance Skill Standards

115

Considerations: Pre-Operation Checklist is a prerequisite for ANY operation.

Operator clears machine and cleans work area after use.

There are numerous types of machines and portable tools for creating pocket hole joinery. This standard is concerned with the execution and assembly of this joinery. Set-up and adjustments will differ by manufacturer.

Required OSHA approved personal protective equipment is worn.

Section 010: Joinery & Assembly

Screw Pocket Machine

Lock-out/Tag-out procedure is in place and followed.

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Š 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Screw Pocket Machine

010

116

Joinery & Assembly

Pre-Operation

Checklist Level 1:

Performance standard: ……Clears area around machine for unobstructed access.

……Verifies dust collection operable/operating (if equipped).

……Positions foot switch for ease of use.

……Clears excess dust buildup from machine if dust collection not present.

……Tests safety mechanism for proper operation. ……Demonstrates proper holding of stock to prevent vertical or horizontal movement when engaging cutter/drill.

Level 2:

Performance standard: ……Inspects hold-down for damage and proper operation.

……Adjusts machine settings appropriate to the material thickness.

……Inspects for free unobstructed movement of cutting apparatus before power is applied.

……Meets Level 1 performance standard.

……Checks tooling and replaces/cleans if needed.

Level 3:

Performance standard: ……Demonstrates ability to perform maintenance as outlined in the Maintenance Standard ……Meets Level 1 and Level 2 performance standards.

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED


Screw Pocket Machine

010

117

Joinery & Assembly

90º Pocket Screw Joint

Level 1:

Performance standard:

Given material and a machine set up, cut pockets and assemble a 90 degree joint.

……Makes a joint face which is flush ±0.005”. ……Maximum gap of 0.001” in joint between opposing parts after assembly caused by screw pocket machining. ……Holes are more than 0.125” (1/8”) [3 mm] away from any edge of stock being machined. ……Joint is located within 0.0156” (1/64”) [0.4 mm] of desired location.

Level 2:

Performance standard:

Given materials, set up machine or jig to execute pocket joints and assemble product.

……Adjusts screw pocket position relative to edge (web distance) for length of screw being used. ……Adjusts pocket cutting feed rate for optimal cutting relative to material type and tool sharpness. ……Meets Level 1 performance standard.

Level 3:

N/A

© 2009 Woodwork Career Alliance ALL RIGHTS RESERVED

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Section 010  

WCA Skill Standards

Section 010  

WCA Skill Standards

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