#2 slide trigger range stop screw

[bloke]

Since my F cimbasso only has 5-valves, I have mounted a #2 slide trigger (for 5234 "low" G, and 2-4 F-sharp and B).

I've got this crappy steel 8-32 "stove bolt" screw mounted on it, to control one end of its tuning range (fwiw: how far IN the slide is allowed to retract).

Needless to say, it looks like crap.

What is NEEDED is one of these, but I've never seen them offered with more than one inch of threads (and I need two inches of threads)...




EVENTUALLY, I'm going to REMEMBER (when buying from McMaster-Carr) to buy some BRASS 8-32 all-thread AND a brass 8-32 knurled nut.
I can braze or solder them together, cut the treads off at two inches, and have what I want.

ANOTHER "nice touch" would be to mount an ACTUAL spring, rather than a "BMB"-ish rubber band.

[Kirley]

viewtopic.php?t=5707

@Rick Denney

Seems like the perfect match.

[bloke]

viewtopic.php?t=5707

@Rick Denney

Seems like the perfect match.

That would be wonderful , but the solution above is so easy that it would seem to be "a project for a project's sake".

[Rick Denney]

viewtopic.php?t=5707

@Rick Denney

Seems like the perfect match.

That would be wonderful , but the solution above is so easy that it would seem to be "a project for a project's sake".

And lessee--threading, a shaped groove, knurling...yup. But I bet I'd have to make a couple before getting a good one. :)

Rick "and my knurling tool has the wrong pattern for tuba stuff--need a new one" Denney

[bloke]

There are also different speeds and cut rates for various types of metals.

That stuff can be found in books, but reinforced/refined via experience.

[Rick Denney]

There are also different speeds and cut rates for various types of metals.

That stuff can be found in books, but reinforced/refined via experience.

That’s the easy part. I’d grind some high-speed-steel tools for that, and probably cut threads with a die. I’d need a scissors knurler, though. My front knurler would break a part that small.

Rick “brass is free-machining” Denney

[bloke]

There are also different speeds and cut rates for various types of metals.

That stuff can be found in books, but reinforced/refined via experience.

That’s the easy part. I’d grind some high-speed-steel tools for that, and probably cut threads with a die. I’d need a scissors knurler, though. My front knurler would break a part that small.

Rick “brass is free-machining” Denney

yes...but (again) too easy to make from two inexpensive available items...

[York-aholic]

That’s the easy part. I’d grind some high-speed-steel tools for that, and probably cut threads with a die. I’d need a scissors knurler, though. My front knurler would break a part that small.

Rick “brass is free-machining” Denney

@Rick Denney I’d just like to say, it’s good to see you posting again.