On Jun 2, 12:41*am, fftt wrote:
On May 31, 11:55*am, rlz wrote:

I recently built a 4' x 8' workbench with 4"X6" corner posts and 3/4"
plywood for two shelves and a double thickness top. *I', using the
shelves for wood storage on one and tool storage on the other. *As
you
can tell, the workbench is now very heavy. *I am looking for a set of
casters that would mount to the sides of the corner posts, and allow
me to raise and move the table. *My Hitachi table saw has similar
casters that have a lever that either raises or lowers the wheels
just
enough to bring legs off the floor. *Does anyone know of this type
casters? *I've done some searches, but there seems to be a large
variety of casters types. * I would like to be able to move the
workbemch without having to remove everything from it first.

Rather than raising the table to engage the casters, I would suggest
mounting the casters on the bottom of the 4x6 posts so that the bench
can be moved at will.

When desiring to "defeat" the casters, engage appropriately designed &
installed "legs".

These legs can be large diameter (1" or bigger) all thread mounted via
a coupling nut welded to a *plate & mounted on the side of the table
corner posts.

Or they could be something as simple as a couple nuts counterbored &
pressed to a 4x4 that is in turn mounted to the side of the corner
posts with plywood splice plates.

To engage the casters just raise the threaded rods a bit above the
floor; *to "fix" the table, drive the all thread down against the
floor.

Steel on concrete is a bit slippery......... crutch tips can help
eliminate that.

cheers
Bob

How often do oyu need to move this table?

First, if this suggestion was used, the 4x6 legs may have to be cut to
make up for the additional height of casters. Maybe not a big deal,
but it could be if there are supports or brackets or other hardware in
the way.

Second, for a workbench of this size/weight, you're going to need some
decent sized casters. I'm not sure what size would be required, so
let's say 3", just for fun. Add in the height of the mounting hardware
and we're probably looking at 4" overall. So, now we loosen the all-
thread and drive it down to the floor enough so that the weight is off
of the casters.

Now we've got this massive workbench, orginally built with 4 x 6 legs,
actually supported by 4 inches of 1" all-thread at each post. Doesn't
that defeat the whole purpose of building a sturdy workbench?

As you said: "Steel on concrete is a bit slippery, crutch tips can
help eliminate that." so you are aware that all lateral forces will be
transmitting down to the legs.