1. My brain hurts, again.......

2.
3D Three Dimensional.
CR Cold Rolled
SIC Not well
CR's Cold Rolled's
MIA Baby Grandaughter
MR Mister
TDC Top Dead Centre
OTOH On The Other Hand
LR's Left Right's
TDC See above
LR .. ..
CAD Computer Aided Design
RPMs Revs Per Minute's
AL Aluminium
CA Charles Atlas
PITB Pain In The Butt
NPT National Pipe Thread
CRS See above
CNC Computer Numerically Controlled
SWMBO She Who Must Be Obeyed
aka Also Known As
NMBS Not My Blummin Spanner
UK United Kingdom
CRS See above
TMBR Brown Stuff
OT Off Track
PTFE Plastic
PITA Bread
ME Model Engineer
DRO Digital Read Out
NZD New Zealand
BTW By The Way
DOA Put wood in't hole
FWIW For What It's Worth
RAN Exercised
ID Internal Diameter
Crs See above
TDC See above
BDC Bottom Dead Centre
MO Modus Operandi
WTB Water Board
fs Beer tokens
MT Morse Taper
DTI Dial Test Indicator
EMD Early Morning Departure
OHP Over Horse Power
SHCS Second Hand Cold Steel
RH Right Hand
cfbm What?
Ncfm ..
Acfm ..
GFS - Ground Flat Stock
OP - Original Poster, Other Person, Old Post, Opening Post, Opening Poster
GIYF Give It Your Friend
RTFM Rough Turn For Me
JBYKWTAM - Just because you know what the acronym means

David D