Re: [CAD_CAM_EDM_DRO] Re: Stepper cnc retrofit ? For Tape-O-Matic

Yes! "Pitch" means how much linear move per turn. TPI (Threads per Inch)
means how many turns per inch of move.

Metric threads are specified by major-diameter followed by PITCH, not
"threads per length of measure" as we Americans do it, "threads per inch".
But often, a metric "thread designation" is for the COARSE version, when
abbreviated, as "M6" means a 6 mm. dia. bolt, but the 1 mm per thread is
"understood". If "fine metric thread", "M6" would generally be followed by a
pitch-designation, as in "M6-0.75", meaning 6 mm. dia bolt, 0.75 mm per
thread.

Suggestion: Let's convert to Metric right away, and, nation-wide, throw out
$millions in tooling, and buy $ millions more metric taps/dies, and
lead-screws on our mills and lathes, and learn the new designations tonight,
rather than watching TV... Uh, what???

Funny: A standard "M5" bolt will thread-into a 10-32 tapped hole, if kinda
loosely, but a 10-32 bolt will often not "go into" an M5 tapped hole, or, if
it does, quite tightly, if "perfectly" machined. I think this is the ONLY
thread-size that is "essentially" interchangeable.


[Non-text portions of this message have been removed]