On 2010-03-10, Ignoramus17831 wrote:
On 2010-03-10, Buerste wrote:

"Ignoramus17831" wrote in message
...
This question is of great interest to me. If, say, I has a 1500 lb
rated caster with a urethane wheel, would it deform under 800 lb
load, enough to make it troublesome to move. Thanks

i

What color are they? The softer Urethane will deform but the harder ones
will not. In die work, Urethane is color coded to hardness but I'm not sure
if is an adhered to standard and may even vary per mfgr.

At the risk of causing a serious consternation, I want to confess that
I am going to make a base for this mill on casters.

Unless you provide an alternate support for it when it is in
use, you are in for some excitement. With servo motors, you will find
that a rapid move in the X or Y axis will cause a corresponding move of
the base of the mill -- related to the mass of the main body of the
mill, vs that of the table, vise, and workpiece on it.

At first, the speed of a rapid move can scare you.

If you were using the older stepper motor version, it can't go
fast enough to do much of this, but servos are *fast*.

I will need to
move it about quite a bit. We are likely doing a house addition this
year and the mill will move into the new shop. I can always put 2x4s
under the base for stable placement.

If you put them there (I would suggest 4x4s, since 2x4s on edge
would be likely to topple if the motion of the tables was perpedicular
to the 2" dimension.

Anyhow, I have these Colson 1500 lbs casters with dark red urethane
wheels, and I want to know if they would become unusable if I let the
mill sit on them for a week or two.

I really don't know about that. Hopefully, someone else will
know about the dark red compound.

Good Luck,
DoN.

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