Vertical Knee Milling Machine - Bridgeport Series 2

Quick Links

Study Guide • Mill Capabilities • Quiz Online Scheduler
Depth of Cut Chart • Speed Chart • DRO Reference
Access Policies • Safety Policies • Training Part


The Bridgeport Series I vertical knee mill is an extremely versatile machine. Using a mill, the proper set up, and lots of patience, you can machine just about anything. This machine is commonly used to make parts square, drill accurate holes, and create slots or pockets in metal workpieces.

How to Start

  1. Complete the Drill Certification: Before you can be approved to use the Mill, you must first go through the drill press training. The Mill can do everything the Drill Press can do and more, so it is helpful to know the basics of drilling and tapping before moving on to more complicated machining operations.
  2. Get a think[box] Ability Badge: Come to think[box] and ask a Student Worker for an Ability Badge Orientation. They will ask you to read sections of the think[box] Access Policies and Safety Policies and then you will read and sign an electronic Machine Shop Access Agreement. You will be given an Ability Badge, which must be worn at all times when you are using the machine shop. Note, you are not yet approved to use the machines in the machine shop.
  3. Review the Study Guide: Read the think[box] Mill Study Guide and familiarize youself with the parts, terminology, and general safety information pertaining to the mill.
  4. Take the Online Safety Quiz: Take and pass the think[box] online Mill Safety Quiz. You must get 100% on the quiz to pass. Refer to the Study Guide as you take the quiz. If you do not pass the first time, review your answers and make sure you know why you didn't pass, then take the quiz again. You may take the quiz as many times as you need to until you pass.
  5. Schedule an in Person Certification Class*: Go to the Online Scheduler to schedule a time to take the think[box] Milling Certification Class. This is a 1.5 hour class taught by think[box] staff that covers basic milling safety and operation. Upon successful completion of the class, you will be given a "MILL" sticker for your ability badge that grants you permission to use the think[box] mill during all open hours. 

    * If you already know how to use this equipment, please use the above link anyway and use the comments section of the online scheduler to indicate your level of familiarity with the equipment. Depending on your past experience think[box] staff are willing to expedite the certification process. 

File Format 



Wood, Plastic, Metal

Regular Price Undergraduate Student Price



Technical Details

  • Table Size: 42 inches x 9 inches
  • X-axis Travel: 30 inches
  • Y-axis Travel: 12 inches
  • Quill Travel: 5 inches
  • Knee Travel: 16 inches
  • Spindle Motor: 3 hp
  • Speed Range: 60 to 4200 rpm
  • Wide variety of tooling and clamping fixtures available 

Training Calendar

The mill is scheduled on a first come, first served basis, however training sessions do take priority since they are scheduled in advance. Please look at the calendar below to see when the mill will be in use. Additionally, you can call ahead (216.368.4976) to see if the machine is in use.