Am I wrong or are parallel clamps supposed to be parallel?
On my Jets, the end clamp section tilts in a bit and the adjustable end
tilts in a bit (1/32-1/16"), after tightening.
Is there an adjustment procedure with these or are parallel clamps just
supposed to be "close to parallel?"
"Playing is not something I do at night, it's my function in life"
Considering that a clamp of that type is not machined, nor has the
production engineering methodology for precise tolerances, "close"
My Bessey's are close enough not to worry about, and the results have so
far been perfect enough. :)
Now, when Festool starts making parallel jaw clamps ....
Is this with a load or without?
I could suspect that under load they might square up. I could also
suspect that under load they could deflect. So I am covered either way
and should come out looking pretty smart.
I have Jet, Bessey, and Cabinet Master parallel clamps. None of them are
parallel at some stage of tightening and or depending on the opening on the
clamps. Simply put, the bar will bend and that prevents the consistant
possibility of a perfectly parallel set of jaw faces. BUT these type clamps
tend to work about as good as you could expect.
Mine aren't perfect, but they are close enough. I have a million
clamps, and to fight off the fact that they all twist a bit
(Besseys.... not much, though) I use a lot of clamps and a little
I think so. Most of the time when you see twisting or wracking it can
be minimized by reorienting the victims in the clamps.
However, when teaching others the art of the glue up, almost without
fail the most likely culprit in their glue up failure is placing the
clamps and material on an uneven surface to glue up. And uneven table
top, gluing on saw horses, etc., bring a whole different dimension non
When I glue something up in the field that requires this kind of
clamping, I actually level my "table" on the sawhorses by carefully
leveling the material I am using for a top.
This cuts out most of the problems.
Is that really necessary?
I just have been using a 1/2 sheet of 3/4" plywood that is pretty darn
flat so that all ends of each parallel clamp rest on the same flat
surface. Then in turn the bases of each clamp are paralle to this
surface as is the piece being clamped.
Within reason, it doesn't matter whether this plywood top is level with
the ground or not as long as all clamps fully rest on its surface...
Am I missing something?
The concrete floor in my shop is not.........uh........shall we say,
I have a 3' X 5' assembly table. It consists of an angle iron frame onto
which I fastened a piece of MDO. While I don't "level" the table with
respect to the earth, I do adjust the legs to take care of a corner that may
be a bit low. I just want the table to be *flat*.
Maybe I should explain that almost everything in my shop is moveable.
(casters, etc) I can arrange tools to accommodate different activities,
woodworking, metalworking, appliance repair, auto repair..........whatever
the need. So the table may be in a different location depending on the task
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