Bridgeport Mill/Inductions Course

Mill TODO

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   knurled thumb screw for Z handle
   thum screws auto feed stop
   dead blow hammer
   vice handle
   ali block
   

Safety

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• No long sleeves (rolled up and secured is ok)
• Don't reach around, behind when spinning
• Don't leave chuck key in
• Don't leave the spanner on the draw bar
• make sure free moving and clear (spin by hand)
• covers closed (motor belt)
• dont touch the swarf with bare hands (hot and sharp)
• work can be hot
• carefully of the X handles when using auto feed

Tool Description

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its a precision engineers tool not a bodgers tool

bed, xyz axis, saddle locks, x axis safety handles, x axis auto feed, auto feed stop, micrometer dials, spindle, quill, drill press feed, slow hand quill feed, auto quill feed, motor, motor tension, motor direction, belt speed, back gears, quill feed ratio, auto quill feed direction, slow feed clutch, motor break, auto quill feed stop, nodding worm and bolts, quill lock, till worm and bolt, spinning the turret, extending the head, DRO, one shot oil system, power controls, vice, rotary table, work clamps, collets, drill chuck, parallels, ends mills, fly cutter, boring head

Simple usage

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materials

   ali
   steel
   stainless
   plastics
   brass
   copper
   NOT WOOD

pre use maintenance

   2 oil pots
       main spindle
       back gears
       one shot oil, 3 pulls
       quill should be dripping if correctly maintained

mains power

   switch positions
   spindle, shaper head, auto feed, coolant
   motor direction switch

adjusting belt speed

   stop motor, stop motor & tension off, adjusting belts, engaging back gears, tension on

mounting work

   bed, T-slots, clamming kit, vice,  parallels, sacrificial metal  NOT the bed or vice, V blocks, rotary table, center finder, wiggler

aligning vice and work

   dial indicator

tramming the head

types of tool

   end mill
   slot mill
   ball mill
   drills
   center drills
   boring head
   fly cutter
   facing cutter

mounting tools in the quill

   use a collet of correct size
   never mount mills in drill chuck
   drill chuck

climb cut vs conventional cut

Machining operations (practicle)

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squaring a block