A sleeve is located within {HEAD ~ the housing} to provide {TAIL ~ support} to the worm gears and maintain alignment of the racks during printing 
to provide
A sleeve is located within { HEAD ~ the housing } to provide { TAIL ~ support } to the worm gears and maintain alignment of the racks during printing
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH