Mel in WA
Hot Rolled
- Joined
- Aug 29, 2005
- Location
- Castle Rock, WA
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Field Sensi Threader, Herbert Field, Portland, OR
- Thread starter Mel in WA
- Start date
- Replies 6
- Views 4,607
Milland
Diamond
- Joined
- Jul 6, 2006
- Location
- Hillsboro, New Hampshire
For a shop that does manual second-op tapping it could be useful, but most shops are trying to automate every possible operation (Done in One). If it works well it could be useful for someone, but frankly, only at a relatively low cost.
sfriedberg
Diamond
- Joined
- Oct 14, 2010
- Location
- Oregon, USA
Agree. It's a lot faster than manual tapping for taps, and parts, small enough to be hand-held. Probably slightly faster than a drill press with an auto-reversing tap head (Tapmatic or Procunier), just because it's optimized for it. But if you're not doing repetitive tapping on hundreds to thousands of parts as a 2nd operation, it's a dust collector.
I have seen a couple interations of this....
and used (or tried to at least) use one.
Only for re-tapping, tiny holes, maybe 1/4-20 max.
The large ring has considerable flywheel effect, and it's hard
to get it to back up quickly.
The problem is the friction area is way too small.
Take apart a procunier, they have cork covered cones, much more torque
with much less pressure. The moving mass is much lighter and smaller in dia.
for less flywheel effect.
and used (or tried to at least) use one.
Only for re-tapping, tiny holes, maybe 1/4-20 max.
The large ring has considerable flywheel effect, and it's hard
to get it to back up quickly.
The problem is the friction area is way too small.
Take apart a procunier, they have cork covered cones, much more torque
with much less pressure. The moving mass is much lighter and smaller in dia.
for less flywheel effect.
Uunderwoodmark26
Plastic
- Joined
- Feb 22, 2022
sfriedberg
Diamond
- Joined
- Oct 14, 2010
- Location
- Oregon, USA
That was 4.5 years ago, Uunderwoodmark26. The original owner is possibly dead of old age, and the original poster probably didn't buy it from the owner.
tjs42
Hot Rolled
- Joined
- Nov 8, 2003
- Location
- portland, oregon
FAIRLY common around Portland, Or. Probably seen a dozen or so in the last 20 years at auctions. Owned several . If you can get $100 out of them now days you would be doing good.
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