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Machine Technologies



Teachers

Mr. Clinton Putnam - Dept. Head

Mr. Keith Gilman

Mr. Douglas Bachand



Sections

Bench and Floor Work

Computer Aided Manufacturing

CNC Lathe

CNC Milling

Engine Lathe

Milling Machine

Projects

Surface Grinding

View Curriculum Frameworks

Poker Run


All Students in the Machine Shop will be exposed to manual machining after the completion of the mandatory twenty week exploratory program.

Manual machining at the beginning of the machine program is still the best way to introduce the students to basic machining operations, work-holding fundamentals, and give an understanding of the cutting process. This allows the student to develop this understanding as a prerequisite to CNC (Computer Numerical Control) and CAM (Computer Aided Manufacturing) programming and machining. After this introduction, the machine program makes the transition to CNC programming and machining using all the fundamental machining skills learned in the manual-machining phase.

The Machine Technologies CNC/CAM students will spend their remaining instructional time learning advanced metal machining skills and concepts. With the use of a state of the art CAM lab the students will work with advanced CAM systems to create part programs for CNC machines.

Since a machinist's main job function is to set-up and operate machines that shape metal and other materials into precision parts, the principle goal of the Machine Technologies program at Pathfinder is to provide the resources that students need to stimulate their mental capabilities. These abilities are developed in the students by providing instruction and experiences in designing, modeling, computer testing, trouble shooting, observing, analyzing outcomes, investigating problems and finally machining precision parts.

The transition from manual phase to the CNC/CAM phase is all based on each individual's ability and competencies. Individual instruction is the hallmark of this program: therefore, each student has the potential to be a productive machinist upon graduation.

The teachings in the measurement segment of the shop course include, but are not restricted to the following tools:

Student working with a digital measuring tool
  • Micrometers

  • Height Gages

  • Gage Blocks

  • Indicators

  • Small Hole Gages

  • Telescoping Gages

  • Radius Gages

  • Surface Gages

  • Center Gages

  • Scales

  • Calipers

  • Combination Square Set

  • Surface Plates

Student working with a digital measuring tool

Bench & Floor Work

Sawing
  • Hand Saw

  • Power Saw

  • Band Saw

  • Sawing Contours

Threading
  • Tapping

  • Die Threading

Layout
  • Basic Tools

  • Centering

  • Hole Layout

  • Irregular Shapes

Teacher instructing student on bench work
Student completing bench work
Filing
  • Flat

  • Draw

  • De-Burning

Assembly
  • Steel Stamping

  • Transfer Locating

  • Simple Assembly

General Shop Functions
  • Tool Crib Attending

  • Stock Room

  • Inspection Area

  • Lubricating

  • Power Tools

Engine Lathe

Tool Grinding
  • Facing

  • Turning

  • Threading

  • Grooving

  • Form

  • Boring

  • Carbide

Holding Methods
  • Lathe Centers

  • Full Center

  • Live Center

  • Three Jaw Chuck

  • Four Jaw Chuck

  • Steady Rest

Threading
  • Tap Method

  • Die Method

  • Single Point Method

  • Internal

  • External

Computerized engine lathe

Student working with manual engine lathe
Student working with a manual lathe
Operation
  • Facing Between Centers

  • Center Drilling

  • Parallel Turning

  • Filing

  • Polishing

  • Undercutting

  • Knurling

  • Feeds and Speeds

  • Grooving

Aligning Centers
  • Tailstock Adjustment

  • Straight Cut Method

  • Trial Cut Method

  • Indicator Method

Boring
  • Straight Holes

  • Blind Holes

  • Taper Holes

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Milling Machine

Holding Methods
  • Vise

  • Strap Downs

  • Fixture Set-ups

  • Align Head

  • Align Vise

  • Edge Pickup

  • Digital Readouts

Student working with the milling machine
Operations
  • Mill Sides

  • Mill Ends

  • Radius Milling

  • Angular Milling

  • Counter Sinking

  • Slots


Surface Grinding

Wheel Preparations
  • Wheel Mounting

  • Ring Test

  • Wheel Care and Safety

  • Truing

  • Dressing

Student working with a surface grinder
Grinding Operations
  • Magnetic Chuck

  • 'V' Block

  • Angle Plate

  • Vise

  • Sine Plate

  • Compound Angles

 

CNC Milling

Set Up
  • Datum Pick-up

  • Edge Pick-up

  • Program Setting

  • Tool Setting

The inside of a CNC milling machine
An enclosed CNC milling machine
The bit of an unenclosed CNC milling machine
Student working with an unelclosed CNC milling machine
Operations
  • CNC Program

  • Modifications

  • Speeds and Feeds

  • Part Preparation

  • Computer Control

  • Preparation

  • Inspection

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CNC Lathe

Set Up
  • Edge Pick-up

  • Program Settings

  • Tool Setting

Holding Methods
  • 3 Jaw Chuck

  • Lathe Centers

Student working with a CNC latheA CNC lathe
Operations
  • Program Modifications

  • Speeds and Feeds

  • Part Preparation

  • Computer Control Preparation

  • Inspection

 

Computer Aided Manufacturing

CAM 1
  • Basic CAM Operations

  • Cutting Tools

  • Creating Part Profiles

  • Edit Part Files

  • Edit Tool Paths

  • Roughing, Drilling, and Counterboring

Students working with a CAM program to make simulations
CAM 2
  • Create & Edit Part Profiles

  • Advanced Part Profile Editing

  • Edit Tool Paths

  • Perform Drilling and Counterboring

  • Perform CAD/CAM Integration

Students working with a CAM program to make simulationsStudents working with a CAM program to make simulations

CNC Programming
  • Cartesian Coordinates

  • G & M Machine Codes

  • Program Formats

  • Explanation of Canned Cycles

  • Use of Sub-Routines

  • Programming with Cutter Compensation

  • Practice Simple Part Programs

  • Troubleshooting on Benchtop CNC

  • Downloading DNC vs. Disk

Student practicing with a training CNC programming machine

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Projects

Annual Car Race

Below are images from the Annual Machine Shop Car Races. This is a 2 week long project done before Christmas where Machine Shop students design and race their own miniature cars. The cars are all judged and 3 top winners are chosen. The race is decided by the fastest car. The winners of the competition are awarded tools.

Click on a thumbnail to view a larger image.

Car Race Dump Truck
Car Race Offroad Car
Car Race Lifted Car
Car Race Rolls Royce
Car Race Couch Car
Car Race Bomb Car
Car Race Ice Cream Cone
The cars lined up on a table
Pathfinder Regional Vocational Technical High School 240 Sykes Street Palmer, MA 01069 1-413-283-9701