"Koz" wrote in message
...
DeepDiver wrote:

I need some 3" thick HDPE, specifically: 16.5"L x 6"W x 3"T (2 pieces).
Does
anyone know of a source for this? So far, the most I've been able to find
is
2-1/4" thick.

Does it have to be HDPE or would UHMW work?

UHMW would work fine (as would aluminum). I'm using this to make elevating
platform blocks for a milling machine, so it simply needs to be rigid,
durable, and impervious to the typical fluids (nothing exotic) used in
machining operations. A dark color plastic would probably be preferrable to
a light color as it will show less grime over the years, but that's purely
esthetics and is not a critical issue.

The reason I secified HDPE is because I figured that would be the least
expensive material that would satisfy my requirements.

Of course, I'm open to other ideas/suggestions.


I'd get thicker than 3 thick and machine it down if tolerance is an issue.
It usually comes +/- about 1/16" (sometimes more) at those thicknesses.

Tolerance is not an issue; +/- 1/16" would be fine, as long as both pieces
are closely "equal" in height.


If UHMW is ok, let me know and I can cost it for you.

Thanks. I have no idea what the current market prices are for UHMW, but I'm
trying to keep this under $36. Otherwise, it would probably be cheaper to go
with 6" x 3" rectangular steel tubing.


It might also be available on e-bay as scrap from someone at better
prices.

I've looked before, but I'll have another go at it.

Thanks,
Michael