DISPLAY Challenges
Machine Shop Project
( Computer Numeric Control) Questions? Please contact Frank Parker at: Email: franklin. parker @ nwtc. edu Phone: 920-498-6384
DISPLAY Challenges
TRADES & ENGINEERING TECHNOLOGIES
Student capacity: No limit
( Manual Machining) Any metal, plastic, wood work piece or part which is machined on one or more types of manual / conventional machine tools( milling machine, engine lathe, drill press).
( Computer Numeric Control Machining) Any metal, plastic, wood work piece or part which is drawn with any CAM( Computer Aided Manufacturing) software, or long-hand programmed with G & M code and then created on a CNC machine( milling, turning, routing, waterjet, EDM).
All displays will be evaluated on tolerances, surface finish, and workmanship, in addition to a display of the blueprint used for machining( all submissions should have a blueprint), additionally a CAM drawing with a print out of the machine code( G & M code) used for CNC parts.
Tolerances:
� Fractional Dimensions = +/- 1 / 64 �( Two place decimals). XX = +/-. 01 �( Three place decimals). XXX = +/-. 005 � Angles = +/- 1 / 2 degree
Surface finish:
� �
Machined surface should be a 125 Ra or better No burrs or sharp edges present
Workmanship considerations:
� Complexity of the part( is the part or piece challenging)? � Functionality of assembled parts( does the part or piece serve a purpose)?
Documentation: �
�
All submissions should have a blueprint with dimensions and tolerances( hand-drawn sketch is acceptable) CNC Parts should have a CAM drawing and Gcode print out
18