Learn 40 Years Of Mech Prototyping At Lightspeed

You might be interest in this MIT seminar by Erik Vaaler too:

Machine Shop 1Machining Skills for Prototype Developmenthttp://techtv.mit.edu/genres/24-how-to/videos/142-machine-shop-1Duration 40:321) Basic2) Layout Techniques3) Basic Tools: Drill Press, Band Saw, Belt Sander & Grinder4) Locating and Drilling Holes5) Tapping Holes

Machine Shop 2Machining Skills for Prototype Developmenthttp://techtv.mit.edu/genres/24-how-to/videos/130-machine-shop-2Duration 57:331) Basic 22) Drilling Holes3) Special Drills for Plastics and Hard or Abrasive Materials4) Drill Press Limitations5) Bandsaw6) Suitable Speeds, Feeds and Materials7) Bandsaw Setup8) Using the Drill Press Vise

Machine Shop 3Machining Skills for Prototype Developmenthttp://techtv.mit.edu/genres/24-how-to/videos/181-machine-shop-3Duration 30:021) Basic 32) Good Practice – Clean Up3) Small Belt Sander Configurations4) Grinder Operations and Materials5) Deburring and Buffing6) Finishing Techniques

Machine Shop 4Milling Machine 1http://techtv.mit.edu/genres/24-how-to/videos/127-machine-shop-4Duration 50:331 Milling Machine 1 Layout & Use; what the different parts do2 Quill Feed Allows you to move tool up and down3 Axis Handfeed Feed/Crank on Axis with Dials to adjust the Bed4 Gibb Locks Holds/Locks Bed to Saddle & Saddle to Knee and Knee to Body of Machine Locking Ring Adjustments5 Power Feed Attached to one or more of the Axes Forward/Reverse Knob and Variable Speeed Control6 Digital Readouts Measure position of Axes to 0.001″ or in mm7 Milling Machine Set-Up Squaring the Head Square=Z-zxis of head [Quill] is perpendicular to axis of Bed8 Squaring the Vise Adjusting the vice so back [stationary] jaw of vice is parallel to bed Machine Safety, Protocol, & Shop Safety 9 Milling Machine Accessories & Workholding Techniques Milling Machine Tools Drill Chuck-drilling & reaming Boreing Head-more precise cutting to 0.0002″ Fly Cutter-used to square up a part [4 teeth and 1 single tooth] End Mill-shank type milling cutter Collett Chucks-holds End Mills Saws-used to make deep narrow slots-installed on an arbor Reamers-used to smooth out inside of drilled holes Edge Finder & Center Finder-used to locate punches or holes on a milled part Boreing Tool-Used on a shank head to bore holes

Machine Shop 5Milling Machine 2http://techtv.mit.edu/genres/24-how-to/videos/84-machine-shop-5Duration 1:03:331 Milling Machine2 Square and Hex Collett Blocks-used to hold/clamp parts to machine features on 4 and 6 sides of a part, respectively 2 V Blocks Holding parts to machine features into parts and end of parts3 Hold-down Clamps Used to hold large or irregularly shaped parts4 Using Angle Blocks Used to hold materials to machine features not perpendicular on a part5 Drill Press Vice Used to hold a part to machine a feature @ 45? angle and other positions/angles Also used with angle blocks to hold parts6 Lathe Chuck With Vise Used to hold parts in the milling machine; not accurate method, but quick/convenient7 Double Sided Tape Used to hold a part in a vice securely without distortion8 Squaring High Aspect Ratio Parts Used to hold a part to be machined securely and squared9 Right Angle Attachment A right angle gear box to mill features in an end of a larger/slender part that is clamped in the vice.10 Slitting Saw A saw blade that is used to cut slots/slits/features in a part Can also be used with a right angle attachment11 Rotary Table A bench/table attached to the bed of the machine used to machine circular parts, grooves, circles, segments Dial indicator and Co-Axe indicator uses to square/center the Table to the Y axes12 5 C Collett Indexer Used to hold Colletts and position parts in up to 24 positions for various milling features

Machine Shop 6Milling Machine 3http://techtv.mit.edu/genres/24-how-to/videos/143-machine-shop-6Duration 46:331 Milling Machine 3 Squaring a part, maching all surfaces so they are flat and perpendicular to one another and nominally to the part that will be milled; removing burrs2 Squaring a Plate Squaring the sides of a part/plate to the dimensions of the finished milled part; remove burrs3 Using the Edgefinder Used to locate the edge of a part relative to the spindle of the machine4 Drilling Holes Drill press used to drill holes in parts; center drill milling and other drill bits; setting depth stop

Machine Shop 7Milling Machine 4http://techtv.mit.edu/genres/24-how-to/videos/183-machine-shop-7Duration 45:331 Reaming Holes Reamer is used to make a drilled hole larger and smoother within 2/10000″ of it's diameter2 Boring Holes A Boring Head is used for making very accurate holes; also used on a quill producing more accurate holes3 Milling a Slot End Mills used to mill slots in a piece4 Milling a Shoulder Conventional & Climb MillingA Shoulder or step milled into a piece Conventional Milling-part is fed against the motion of the tool; best for rough cuts Climb Milling-Part is being fed along with direction or rotation of the tool; better surface finish cuts5 Cleaning the MachineVery important in the use of milling machine; chips, dust, etc.. Needs to be cleaned Only a brush or vacuum should be used. Air should never be used; this risks blowing chips into machine and possibly damaging it Most accidents in a machine shop happen when bringing parts to a machine or when the machien is being cleaned

Machine Shop 8Lathe 1http://techtv.mit.edu/genres/24-how-to/videos/144-machine-shop-8Duration 45:021 The Lathe Components @ Set-Up Axes and Feeds2 Turning Tools3 Turning and Facing4 Cutting Off a Part

Machine Shop 9Lathe 2http://techtv.mit.edu/genres/24-how-to/videos/134-machine-shop-9Duration 47:331 Tapping2 Boring3 Knurling4 Cutting Tapers with the Compound5 Turning Shafts Use of live center6 Single Point Thread Turning

Machine Shop 10Lathe 3http://techtv.mit.edu/genres/24-how-to/videos/172-machine-shop-10Duration 34:321 Lathe Chuck2 Lathe Arbors3 Turning Between Centers4 Face Plate Irregular Shapes5 Face Plate Thin Materials