JHOLLAND1
Titanium
- Joined
- Oct 8, 2005
- Location
- western washington state
one of the final manual jig borers produced by Moore Special Tools
so to day I begin tear down and retrofit
this machine build year 1978
wired 440 vac--no option of rewire to 220 vac---so motor must go
this machine had option of power feed X and Y axes also rotary encoder
positioning x,y
many pics of Moore jig borers are retrievable on web but I did not find tear down pics
of most interest is spindle drive
consists of 2 hp heavy 440 vac motor with 2 speed option 860 or 1725 rpm
secret of Moore speed setting from 60 to 2250 rpm is stacked reeves drives
these are smoothest, most solid construction I have encountered
but---I will modify drive unit by replacing oem motor with 220 vac 2 or 3 hp
1750rpm and vfd
you will notice final output of speed assembly is thru 2 v-belts
this construction will remain--all vari-sheaves will be removed
so to day I begin tear down and retrofit
this machine build year 1978
wired 440 vac--no option of rewire to 220 vac---so motor must go
this machine had option of power feed X and Y axes also rotary encoder
positioning x,y
many pics of Moore jig borers are retrievable on web but I did not find tear down pics
of most interest is spindle drive
consists of 2 hp heavy 440 vac motor with 2 speed option 860 or 1725 rpm
secret of Moore speed setting from 60 to 2250 rpm is stacked reeves drives
these are smoothest, most solid construction I have encountered
but---I will modify drive unit by replacing oem motor with 220 vac 2 or 3 hp
1750rpm and vfd
you will notice final output of speed assembly is thru 2 v-belts
this construction will remain--all vari-sheaves will be removed