Machine Shop 3
Milling Operations - Project - Jig Boring
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Milling Operations - Project - Jig Plate
Part # PS13A

Part Description: Jig Plate

Quantity Req.: 1

 Name _________________________

Date: ________________

PLEASE HAVE INSTRUCTOR INITIAL AND DATE  GREY BOXES (*), AFTER REQUIRED OPERATIONS
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Step# Location  Description  Initials  Date
10 Instructor Secure stock from Instructor *  
20 Vertical Mill  Indicate solid jaw of vise to within 0.001.
30 Vertical Mill Tram or Square the head to within 0.001.
40 Vertical Mill Place stock on parallels in a vise to machine a reference surface "A".
50 Vertical Mill Finish squaring and sizing stock to print specifications.
60 Instructor Student secures pins for calculating bore fits.
70 Student Calculates bore sizes according to reference materials. Write the Bore sizes in the spaces provided On the print.
80 Instructor Have calculations checked by the instructor. *  
90 Student Layout hole locations
100 Vertical Mill Bore hole at Datum "C" to location first and then to proper size.
110 Instructor Have instructor check size and location of the first hole. Be prepared to answer questions concerning how to locate, and check and calculate locations (using chart below) and sizes of the final holes. *  
120 Vertical Mill Bore the remaining holes to location and size.
130 Student Deburr and inspect the part.
140 Instructor Have inspected by the instructor. *  

Conversion of Coordinate measurements to position location