Myford lathe/Inductions Course
Early notes
Metal Working inductions
Basic Safety for all
- hackspace rules
- lone worker
- HSE
- Eye protection
- Tie long hair back
- No loose clothing
Lathe
=
TODO RFID Access cup/female live center motor indicator led motor breaking foot stop small 4 jaw key, re machine on mill dividing head clean up parting blade clean up shelves spare V belt maintenance schedule traveling steady
Safety
- No long sleeves (rolled up and secured is ok)
- Don't reach across
- Don't leave chuck key in
- make sure free moving and clear (spin by hand)
- covers closed
- never run in reverse
- dont touch the swarf (hot and sharp)
- work can be hot
Tool Description
Its an imperial machine
Use the Zeus guide for conversion Diameter vs radius for cuts
bed, saddle, cross slide, top slid, quick change tool post, chucks, tail stock, tail stock locks, speed belts, back gears, belt tension, power switch, clutch, , auto feed (lever, direction and change gears), micrometer dials, tool storage (rack and below), saddle lock, tread indexer, head lock
specs
Simple usage
materials
ali steel stainless plastics brass copper NOT WOOD
pre use maintenance
5 oil pots
main spindle on front
two under belt cover
two motor bearings
mains power
switch positions (not reverse) clutch off when starting
adjusting belt speed
stop motor & tension off, adjusting belts, engaging back gears, tension on, clutch off, motor on
clutch
always leave it off, right hand operation only (dont reach over work), don't slam it, engage slow and controlled (at all times) check chuck and work is free to rotate before engaging Use clutch to stop machine not power switch
chucking work, changing the chuck
never leave the key in never extend chuck leverage 3 chucks available 3 jaw chuck, Swappable jaws 4 jaw chuck, reversible jaws grip as much as possible centering work extend not more the 3x diameter for free work (use a center in tailstock if longer)
types of tools
index carbide
different tips, mild steel vs ali/stainless
HSS ground
tungsten
brittle
facing, turing, boring, thread cutting, parting tools
drill bits
knurling tool
left hand & right hand, rake
mounting tools on the post
quick change tools multiple tool holders adjust post angle and top slide angle height adjustment (methods, ruler trick, facing trick)
mounting tools in the tail stock
lock it down first, extend out a little push with slight twist retract to eject used appropriate size drill chuck for bit
power feed
start away from work
H32 Oil gears
engaging for direction
checking speed and direction clear of work
using the cam lever
start away from work
test cut depth by hand before engaging power feed
changing gears page 101 book
cutting speeds
look it up in the book or online change base on cutting tool, work material and diameter different speeds for drilling
use of lead screws
hand over hand continues smooth cut backlash (5 handles) setting micrometer dials difference in tick marks on dials (cross slide is .1, top slide is .2)
Maintenance
two type of oil pre use oil
5 flip pots (H32 oil)
complex oiling by metalworking
H32 nipples, V2 way oil, Check oil applicators are full
belts gib adjust
Machining operations (practicle)
don't expect things to be square
1" ali bar
chuck up 3" length
Chucking up stock
setting center tapping (copper hammer) dial test indicator
Facing
oil during cuts setup and test clear of work correct tool, (two to chose from) tail stock clear setting tool post angle, top slide angle height lock off the saddle! cutting across face to clean up saw marks using cross slide for cut and top slide for depth of pass depth of cut (depends on XYZ, lookup table)
Drilling
oil during setup and test clear of work get tool post well clear center drill (correct size for diameter work) drill out to 6mm step up in sizes (depends on material and depth, rule of thumb no more than 5mm step) pecking operation (NEVER Plunge)
Taper
oil during setup and test clear of work change tool setting angle using top slide lock of saddle using top slide to advance tool using cross slide to adjust depth of cut
Turning
oil during setting tool angle using top slide and post adjust using saddle for cut and cross slide for depth dimensioning cuts, calc diameter and cut vs ticks on micrometer dial cuts by hand final cut by power feed
how it should be left
clutch disengaged belt tension off first motor stopped quick change tools remove empty tail stock drills removed from chucks chuck key returns spanners back in place back gears disengaged power feed gears disengaged clean,
swarf sweep all down to tray then remove Dont wipe down ways with cloth (if you do brush oil with v2)
cutting oils to shelfs report broken bits/tools to metalworking@
Do's and Do not
Dont touch the swarf Close eye on tool and tool post distance form chuck slide over hang tool bit over hang No milling bits in chucks No powered tapping Dont wipe down ways with cloth (if you do brush oil with v2) DO NOT CUT WOOD
NOT covered
fixed steady auto feed change gears milling, indexing, gear cutting grinding your own tools parting boring thread cutting hand tapping hand threading with die use of 4 jaw chucks use of face plate turning between centers