Cost: $100
Payment must be made in person, at the studio, prior to being allowed to sign up for this training. Limit 2 members per training session. This is a 5 week, 2 hours per session, one session per week training.
This training is required before gaining supervised access to our Bridgeport knee mills. This class will introduce you to basic milling machine operations. You will then be able to work with one of our machinists on specific projects in a supervised environment.
The weekly sessions will cover the following:
WEEK 1
1) Intro to Bridgeport series 1 milling machine, controls.
2) How to install and remove milling cutters.
3) How to check square and adjust vice and tram on milling machine.
4) Intro to basic digital readout functions.
5) Set up a repeatable stop.
6) Taking off vice and using hold down clamps for larger parts.
Week 2
1) Review of milling machine controls.
2) Review of checking square of vice.
3) Review of installing and removing milling cutters.
4) Discussion and example of climb and conventional milling.
5) Setting up stock to mill in machine.
a) Deburr the stock material.
b) Use layout line to setup part in milling machine vice.
c) Pick correct parallels to machine the part.
d) Install correct milling cutter and set correct speed for size of milling cutter.
e) Take face and edge cuts on Plastic to the correct dimensions.
6) Repeat step 4 for Aluminum.
7) Repeat step 4 for Cold Rolled Steel.
Week 3
1) Review of milling machine controls.
2) Review of checking square of vice.
3) How to tram in head to table on milling machine.
4) How to use an edge finder to find 0,0 point on part, set digital readout to 0,0
5) Drilling holes in Plastic, Aluminum, Steel
a) How to determine drill speed for various types of materials.
b) Use of a center drill to start holes.
c) Discussion that drill bits have webs and to drill larger holes need to step up the drill sizes.
6) From drawing locate and drill holes of various sizes in Plastic.
7) Repeat step 6 for Aluminum.
8) Repeat step 6 for Cold Rolled Steel.
WEEK 4
1) Review of milling machine controls.
2) Review of checking square of vice.
3) Basic theory on machining a slot.
4) Using center cutting milling cutters to plunge into material.
5) Using drills to remove most of material in slot.
6) Machine slot into plastic.
a) From drawing determine size of cutter to use.
b) Set a second datum on digital readout to aid in machining pocket accurately.
c) Machine slot into Plastic.
7) Repeat step 6 with Aluminum.
8) Repeat step 6 with Cold Rolled Steel.
9) Machine pocket into Plastic.
a) Determine type and size of milling cutter to use.
b) Rough cut pocket to size.
c) Finish cut pocket to size.
10) Repeat Step 9 for Aluminum.
11) Repeat Step 9 for Cold Rolled Steel.
WEEK 5
1) Review of milling machine controls.
2) Review of checking square of vice.
3) Set 0,0 point on part using edge finder and digital readout.
4) Drilling and Tapping Basics in Plastic.
a) Determine the correct size of drill for tapping threads.
b) Position table to drill hole in correct location.
c) Center drill and the drill hole.
d) Tap hole into part.
e) Repeat for 3 sizes of tapped hole, 10-32, ¼-20, 3/8-16.
5) Repeat step 4 for Aluminum.
6) Repeat step 4 for Cold Rolled Steel.
7) Drill and tapping a bolt circle using a second datum in Plastic.
8) Repeat Step 7 for Aluminum.
9) Repeat Step 7 for Cold Rolled Steel.