On Friday, January 12, 2018 at 12:05:59 PM UTC-5, Leon wrote:
> On 1/12/2018 6:18 AM, DerbyDad03 wrote:
> >
> > I was reading some reviews on the el-cheap HF clamps. The standard upgrade is to insert
> > a piece of scrap stock into the tube. It vastly increases the stiffness. The twisting seems to
> > be the only real complaint, which the insert eliminates.
>
> The simple solution to keep the clamps from bending panel is us clamps
> on both sides to equal out the direction of deflection.
>
I think we're talking apples and grapes...unless you are just tossing out
an unrelated tip.
What I was referring to is the flimsiness of the U-shaped aluminum bar
itself. From what I read, the bar itself tends to twist end-to-end when
a lot of clamping force is applied. The solution is to insert a tight
fitting piece of stock to fill the U shaped channel. I'm not speaking from
experience - yet - although I did pick up a couple on the way home tonight.
They are easily twisted by hand, so I'll be stuffing them with some scrap
just to bulk them up a bit. Better before than in the middle of a glue up.
> >
> > Another possible upgrade is the one I did on a pair of Clamp-It clamps. I replaced the sliding
> > T handle with a Bessy style handle. I'm sure you use less turns on the bar clamps, but it was
> > a real pain to use the T handles on the Clamp-It unless it hung over the edge of the workbench.
> >
> >
https://i.imgur.com/ViWlxqZ.jpg
> >
>
> How do these work for you. I have never been impressed with these style
> clamps, they do not draw the pieces together rather they simple hold the
> pieces in the position that you place the pieces. If you have a gap
> between he mating corner pieces, tightening the clamp does not close
> that gap. IMHO they encourage a poor fit. I certainly would not use
> them for gluing a corner, maybe if I were only using the clamps
> relatively loosely as a guide and using mechanical fasteners.
You are 100% correct in that they do not draw the pieces together, but they
do a great job or holding stock vertical for things like edge banding, flush
trim routing, etc. Basically an extra pair of hands.
They do indeed work for keeping stock square for pocket screws.
I actually have a pair of the MLCS Clamp-It style (a gift) and a pair of
the Bessey style that I bought on my own. The both have their gives and
takes. The Clamp-It sits solid on a bench for holding panels vertical while
the Bessy's come with small C-clamps with a post that goes into a
hole in the base so that you can clamp the clamp to the edge of workbench.
http://www.rockler.com/bessey-angle-clamp?sid=V9146
When I edged banded the shelves that will go into the base cabinets I'm
building, the Bessys, clamped to the workbench, held the shelf upright
while the glue dried and then held it solid enough so I could flush up
the band with a router.