rivet squeezer yokes

I've got a question about the size of yokes on pneumatic rivet squeezers.

If you have adequate room to work, is there any disadvantage of using a
larger than necessary yoke?

Say, I'm riveting a piece 1" wide material to another with a 5/16" overlap,
obviously a 2" deep yoke will work, but why wouldn't I want to use a 3", 4",
or a longeron yoke? If I'm purchasing additional yokes, why wouldn't I buy
a yoke that is capable of not only doing specialty work, but normal flat
work in areas where clearance isn't a factor? At over $0.1 AMU's per yoke,
I'd rather have one or two that will give me the most options and borrow or
rent those for the occasional special or tight fit job.

Thanks,
Jim

Jim Burns wrote:
If you have adequate room to work, is there any disadvantage of using a
larger than necessary yoke?

If I'm purchasing additional yokes, why wouldn't I buy
a yoke that is capable of not only doing specialty work, but normal flat
work in areas where clearance isn't a factor?

Jim,

The reasons to use the smallest yoke possible a 1. clearance from
some other part of the structure. 2. deeper yokes flex more when
squeezing a rivet. This can make it more difficult to set the rivet
without bending it, usually when setting short ones in thin material.
3. larger yokes are heavier, adding to the squeezer weight that must be
held steady while setting the rivet. The pneumatic squeezer body is
already quite a chunk to hold steady.

From an RV builder's experience: Start with what you need to do the
job at hand, and buy yokes as needed (unless you have a lot of $$
burning a hole in your pocket, and empty drawers in the tool box. :-)
). Some tool vendors make yokes that are interchangeable between
pneumatic and hand squeezers. I only have a hand squeezer with a 1"
thin nose, 1.5", and 3" yokes. My yokes will not fit a pneumatic
squeezer. But, I'm mostly through with riveting on the project. (OK, I
confess to having an RV building buddy that has the full set of
pneumatic squeezers and yokes. :-) But...I have some small hand
squeezer parts that he doesn't have. The arrangement has come in handy
at times.) Yes, owning a pneumatic setup would have made some jobs
easier during building. On the other hand, most of the rivets on an RV
are 3/32".....very easy to hand squeeze. 1/8" are tougher to hand
squeeze, but there are fewer of them to deal with.


Got to spend time in and around the EAA B-17, Aluminum Overcast while it
was at Moffett Field this weekend!!!!

Steve

Thanks Steve,
I've got several places on the Aztec cowl mod STC that will require riveting
inside of channels, so I know I'll need a longeron type yoke. I was
wondering what would be problem using the longeron yoke to squeeze the
remaining rivets.

Cool about the B-17. My family and I were able to hook up with the Honeck's
over at OSH a few weeks ago, just for a quick day of touring the museum and
lunch at Friar Tucks.

New "mega-fence" around the North 40 and still no new control tower.

Jim


"Steve A" wrote in message
. ..
Jim Burns wrote:
If you have adequate room to work, is there any disadvantage of using a
larger than necessary yoke?

If I'm purchasing additional yokes, why wouldn't I buy
a yoke that is capable of not only doing specialty work, but normal flat
work in areas where clearance isn't a factor?

Jim,

The reasons to use the smallest yoke possible a 1. clearance from
some other part of the structure. 2. deeper yokes flex more when
squeezing a rivet. This can make it more difficult to set the rivet
without bending it, usually when setting short ones in thin material.
3. larger yokes are heavier, adding to the squeezer weight that must be
held steady while setting the rivet. The pneumatic squeezer body is
already quite a chunk to hold steady.

From an RV builder's experience: Start with what you need to do the
job at hand, and buy yokes as needed (unless you have a lot of $$
burning a hole in your pocket, and empty drawers in the tool box. :-)
). Some tool vendors make yokes that are interchangeable between
pneumatic and hand squeezers. I only have a hand squeezer with a 1"
thin nose, 1.5", and 3" yokes. My yokes will not fit a pneumatic
squeezer. But, I'm mostly through with riveting on the project. (OK, I
confess to having an RV building buddy that has the full set of
pneumatic squeezers and yokes. :-) But...I have some small hand
squeezer parts that he doesn't have. The arrangement has come in handy
at times.) Yes, owning a pneumatic setup would have made some jobs
easier during building. On the other hand, most of the rivets on an RV
are 3/32".....very easy to hand squeeze. 1/8" are tougher to hand
squeeze, but there are fewer of them to deal with.


Got to spend time in and around the EAA B-17, Aluminum Overcast while it
was at Moffett Field this weekend!!!!

Steve

"Jim Burns" wrote

New "mega-fence" around the North 40 and still no new control tower.

Somebody remember to pack their small bolt cutters, to help in "procuring" a
new gate!
--
Jim in NC

Jim Burns wrote:
Thanks Steve,
I've got several places on the Aztec cowl mod STC that will require riveting
inside of channels, so I know I'll need a longeron type yoke. I was
wondering what would be problem using the longeron yoke to squeeze the
remaining rivets.

Cool about the B-17. My family and I were able to hook up with the Honeck's
over at OSH a few weeks ago, just for a quick day of touring the museum and
lunch at Friar Tucks.


Jim,

Have to admit I have not used a longeron yoke. I was able to get a
standard 1" high yoke over the fuselage 3/4" longerons, or ended up
bucking them instead. The longeron yoke should work for what you are
doing. I'd give it a try if it were my project. You can always pick up
a standard yoke later if necessary.

The best part of the B-17 was talking to two men that flew them. One
had 30+ missions over Europe as a ball turret gunner, then 6 missions in
the Pacific. The other had 33 missions over Europe as a B-24 pilot (and
about 2 hours B-17 right seat time). Great guys, willing to talk about
their experiences and very glad to see the B-17 still flying.

OK, I'm slightly jealous of you guys that get to go to OSH Friar Tucks
on a local flight....... Takes me over a day of flying just to get to
where the sectionals turn from green/tan/brown to all green.


Steve

Funny you should mention the gates.... several of the former gates no longer
exist. The "holes" in the fence are now gated and padlocked. We took a
quick drive 'round just to see. There is a gate near Friar Tucks, but it
will no doubt be guarded by a Gate Nazi, so we'll have to appeal to our
insider escort service to get supplies in. The new fence is roughly 8 or 10
feet tall... no more handing camping supplies or liquid nourishment "over
the fence".

Don't worry, the pop machines near the North 40 showers are there... talk
about something looking lonely and totally out of place... now with the
fence, the people that live across the road can't even use them!

Jim

"Morgans" wrote in message
...

"Jim Burns" wrote

New "mega-fence" around the North 40 and still no new control tower.

Somebody remember to pack their small bolt cutters, to help in "procuring"
a
new gate!
--
Jim in NC

snip
OK, I'm slightly jealous of you guys that get to go to OSH Friar Tucks
on a local flight....... Takes me over a day of flying just to get to
where the sectionals turn from green/tan/brown to all green.

Steve

Days are getting longer Steve!

I think everyone that attends Airventure should, at least once, fly into OSH
during the down period.

The absence of everything...
the lack of airplanes...
the wide open spaces...
that incredibly long runway...
the naked control tower...
the empty campgrounds...
the hotel "vacancy" signs...
the lonely pop machines...
and the silence...
all give special appreciation of not only all of us that attend, more so to
those who fly-in, but an incredible appreciation of all the work and effort
that go into the event by the EAA, it's members, the volunteers, and the
vendors.

Jim

Your Tax dollars at work courtesy of the TSA. Our airport has a good start
with fence and It is tall enough to keep the deer out.


"Jim Burns" wrote in message
...
Funny you should mention the gates.... several of the former gates no
longer
exist. The "holes" in the fence are now gated and padlocked. We took a
quick drive 'round just to see. There is a gate near Friar Tucks, but it
will no doubt be guarded by a Gate Nazi, so we'll have to appeal to our
insider escort service to get supplies in. The new fence is roughly 8 or
10
feet tall... no more handing camping supplies or liquid nourishment "over
the fence".

Don't worry, the pop machines near the North 40 showers are there... talk
about something looking lonely and totally out of place... now with the
fence, the people that live across the road can't even use them!

Jim

"Morgans" wrote in message
...

"Jim Burns" wrote

New "mega-fence" around the North 40 and still no new control tower.

Somebody remember to pack their small bolt cutters, to help in
"procuring"
a
new gate!
--
Jim in NC

"Cy Galley" wrote

Your Tax dollars at work courtesy of the TSA. Our airport has a good start
with fence and It is tall enough to keep the deer out.

Yep, now this fence will keep "Dear Jay" in the North 40 from getting to his
favorite watering hole. g

Do you think that they will let people back in, with the appropriate color
arm band? If not, that is too bad, and an unnecessary restriction, it seems
to me.
--
Jim in NC

Seriously, I think it's to keep the deer out. We've got a terrible deer
problem up here. I doubt if it really has much to do with the EAA. How the
EAA uses it will be the question.
Jim