Jj

"JPEracing"

23/02/2004 7:41 PM

HDPE plastic for a shaper fence

Need to replace the fence halves on my PM shaper. Considering using some 1"
thick HDPE plastic instead of MDF or a typical hardwood.
My question is if the plastic will be "stiff" enough so as to not flex in
the unsupported end sections.
Unlike a router table fence that supports the face material along its entire
length. A typical shaper fence only supports about 3/4 of the face length.
Hopefully my question is clear enough to understand.
Thanks
jsawduste


This topic has 5 replies

LH

"Lew Hodgett"

in reply to "JPEracing" on 23/02/2004 7:41 PM

24/02/2004 12:54 AM


"JPEracing" writes:
> Need to replace the fence halves on my PM shaper. Considering using some
1"
> thick HDPE plastic instead of MDF or a typical hardwood.
<snip>

When you get pricing on 1" HDPE, better be sitting down.

Let me suggest an alternate.

Build a fence from 13 ply (3/4") cabinet ply, then cover with a piece of
1/4" UHMWPE, not HDPE, by attaching with C'Sunk 1/4-20 flat head bolts.

I'd use S/S, but that's all I work with so it is easy for me.

HTH


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: <http://home.earthlink.net/~lewhodgett> for Pictures

Rm

Russell

in reply to "JPEracing" on 23/02/2004 7:41 PM

25/02/2004 1:33 AM

In article <[email protected]>, johnedwards123
@comcast.net says...
> Need to replace the fence halves on my PM shaper. Considering using some 1"
> thick HDPE plastic instead of MDF or a typical hardwood.
> My question is if the plastic will be "stiff" enough so as to not flex in
> the unsupported end sections.
> Unlike a router table fence that supports the face material along its entire
> length. A typical shaper fence only supports about 3/4 of the face length.
> Hopefully my question is clear enough to understand.
> Thanks
> jsawduste
>
>
>
get an Aigner or an Elbe,much safer and last for years
Russell

Ba

B a r r y

in reply to "JPEracing" on 23/02/2004 7:41 PM

24/02/2004 12:48 AM

On Mon, 23 Feb 2004 19:41:51 -0500, "JPEracing"
<[email protected]> wrote:

>Need to replace the fence halves on my PM shaper. Considering using some 1"
>thick HDPE plastic instead of MDF or a typical hardwood.
>My question is if the plastic will be "stiff" enough so as to not flex in
>the unsupported end sections.
>Unlike a router table fence that supports the face material along its entire
>length. A typical shaper fence only supports about 3/4 of the face length.
>Hopefully my question is clear enough to understand.
>Thanks
>jsawduste
>


If I'm reading this right, the work will be supported by some
percentage of the fence, including the material on both sides of the
bit. I wouldn't worry about the ends of the fences, except those that
are closest to the bit.

Barry

JC

John Crea

in reply to "JPEracing" on 23/02/2004 7:41 PM

23/02/2004 9:19 PM

Nope, unsupported it WILL flex

John

On Mon, 23 Feb 2004 19:41:51 -0500, "JPEracing"
<[email protected]> wrote:

>Need to replace the fence halves on my PM shaper. Considering using some 1"
>thick HDPE plastic instead of MDF or a typical hardwood.
>My question is if the plastic will be "stiff" enough so as to not flex in
>the unsupported end sections.
>Unlike a router table fence that supports the face material along its entire
>length. A typical shaper fence only supports about 3/4 of the face length.
>Hopefully my question is clear enough to understand.
>Thanks
>jsawduste
>

MD

Morris Dovey

in reply to "JPEracing" on 23/02/2004 7:41 PM

23/02/2004 6:55 PM

JPEracing wrote:

> Need to replace the fence halves on my PM shaper. Considering
> using some 1" thick HDPE plastic instead of MDF or a typical
> hardwood. My question is if the plastic will be "stiff" enough
> so as to not flex in the unsupported end sections. Unlike a
> router table fence that supports the face material along its
> entire length. A typical shaper fence only supports about 3/4
> of the face length. Hopefully my question is clear enough to
> understand. Thanks jsawduste

If it were my shaper, I think I'd use wooden fence sections with
HDPE faces - to provide the stiffness of wood in combination with
the "lubricity" of the HDPE.

--
Morris Dovey
DeSoto, Iowa USA


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