My First CNC Project Rubric

Name:______Date:______

Design=100

Category
Standard / 70 points / Score
Design Requirements / Does the Design meet the minimum requirement of 30 line strait lines, appropriate for school, and stay within the design envelope? Graded all or nothing / .
Category
Standard / 10 pts points / 9-7 pts
At / 6-4 pts
Approaching / 3-1 pts
Far Below / Score
Design Layout / Design is layout appropriately left to right and top to bottom / Design is layout has error, either left to right or top to bottom / Design is layout has minor errors both, left to right or top to bottom. / Design is layout has major errors, left to right or top to bottom.
Line spacing
“2 box limit” is that not two design line can be closer then 2 boxes form each other / All design lines maintain the 2 box limit. / Design line maintain the 2 box limit, but some points break the 2 box limit / No more then 3- 2 box limits violations. / Major 2 box limit violations
Design executions / There is symmetry and balance between line and points. Lines are appropriate sized in relationship to each other. Points are balance across the design / This is small errors in symmetry and balance between line and points. Point on each side to not match. Some small line differences / Major errors in either balance for symmetry, but not both. / Major errors in both balance for symmetry.

G & M Code=100

Category
Standard / 70 points / Score
G & M Code / Does the G and M code follow all the startup and end block rules that will produce a machined part / .
Category
Standard / 10 pts points / 9-7 pts
At / 6-4 pts
Approaching / 3-1 pts
Far Below / Score
Code Layout / Code follow appropriate Number nomenclature, use of decimals, and Capitalization / Small errors in one of the following; Number nomenclature, use of decimals, and Capitalization / Major errors in one of the following; Number nomenclature, use of decimals, and Capitalization / Small or major errors in more than one of the following; Number nomenclature, use of decimals, and Capitalization
(Operators Notes) / Appropriate use of operators note, during start up and end block as well as major transitions in the code. / Appropriate use of operators note, during start up and end block only. / Absents of operators note either in the startup or end blocks. . / Few to no operators notes.
Start Up and End Block / Student followed proper sequence for startup block, included Safety line. End block follows proper sequence included spindle stop and Z retraction. / Small errors in either the startup block, or End block follows ( cannot be in the safety line or spindle stop and Z retraction) / Major errors in either the startup block, or End block follows ( cannot be in the safety line or spindle stop and Z retraction) / Major errors in both the startup block, or End block follows ( cannot be in the safety line or spindle stop and Z retraction)

Machined Part=100 (optional)

Category
Standard / 70 points / Score
Machined Part / Was the Part machined correctly / .
Category
Standard / 10 pts points / 9-7 pts
At / 6-4 pts
Approaching / 3-1 pts
Far Below / Score
Setup / Student was able to setup the machine without input for the instructor or other students / Student was able to setup the machine with small input for the instructor or other students / Student was able to setup the machine with major input for the instructor or other students / Student was able only able to setup the machine with direct help for the instructor or other students
Finish / Finish part look clean of chips, sanded and flamed edges, no errors present, Back is clear if cuts. / Finish part has some chips, or needs more attentions on the sanded and flamed edges, minor errors present, Back is clear if cuts. / No sanded or flamed edge. / Black was used as a test piece.
Clean Up / Machine was clean of chips, all tools were put away. Machine is off, and you file have been erased for the Hard drive / Small minor deficiency with cleanup chips, all tools were put away. Machine is off, and you file have been erased for the Hard drive / Major deficiency with cleanup chips, all tools were put away. Machine is off, and you file have been erased for the Hard drive. / No effort made with cleanup chips, all tools were put away. Machine is off, and you file have been erased for the Hard drive