One way to shorten a bolt.

Intheshop

Banned
Smokey,slight detour....

Can you describe the tapered coupling?Not so much from the material (titanium) standpoint but from a "fit" and application perspective.I do a metric ton of sheet metal,dust and general material transfer tubing.Am curious about "couplings" in general.
 

Brad

Benevolent Overlord and site owner
Staff member
I have a lathe but not a bandsaw. Not sure to figure out what I would prefer-lathe or hacksaw? Hmmmmm
 

smokeywolf

Well-Known Member
Intheshop, motion picture film developers are typically comprised of a series of tanks and a number of vertical racks which hang from two long beams. Each of the vertical racks holds a upper and lower shaft populated with about 10 film rollers each. Beams-racks-rollers are raised on hydraulic rams for servicing and lowered into the tanks during processing. There can be as much as 4 miles of film running through the tanks at one time. Some tanks are full immersion and some contain spraybars spraying chemistry on the film. The ones with spraybars get their chemistry fed from mixing tanks in the basement. When the Beam-rack-roller structure is lowered into the tank, the male taper at the end of the pipe that feeds the spraybars is guided into the matching female tapered socket at the end of the length of pipe coming up through the bottom of the tank.
The two tapers are turned on the same lathe without changing the setting on the taper attachment. The coupling produces a near fluid tight joint without O-rings, thereby alleviating servicing.
 

fiver

Well-Known Member
you'd probably like the porta-band best Brad.
at least that's my option....
I have even cut fire wood with mine.

when I shorten a bolt I put 2 nuts on it, lock the bolt head down in the vise grips, set the porta-band in between the nuts and push the button.
I unscrew both nuts with some anti-seize applied to the bottom threads, then take the bolt over to the rough polishing wheel and round off the last thread slightly.

I know, I know,, super precise.
stop laughing.
 

Pistolero

Well-Known Member
Great stuff! Thanks, Keith. Learning a lot.

But.... geometric die head....whoosh! The sound of the topic shooting over my head.

Bill