Electric Planer Blade Alignment/Terry

[Farrell]

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I'm pretty sure its blade alignment - or at least that is contributing =
to the problem. The alignment dohickeys provided with the machine are =
total junk - they don't want to sit in any particular spot, thus =
allowing the blade to wonder anywhere it wants. I know that is a =
problem, so I figure fix that first and then see how it works - if I =
need to pursue other items at that point, so be it. Thanks for the =
thoughts though.

Terry Farrell

----- Original Message -----=20
From: "Paul Chick (Earthlink)" <tune4@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, October 02, 2003 11:47 AM
Subject: RE: Electric Planer Blade Alignment/Terry


>=20
>=20
>  The laminations were noticably thicker in the =3D
> middle (the laminations were 9-inches wide and I planed each =
lamination =3D
> both ways in the planer - so the middle ended up thicker than the =3D
> edges).
>=20
> Terry,
> This sounds to me like the blades are, most likely, sharpened "true", =
AND
> aligned "true", but your machine's upward/downward pressure is =
unequal, thus
> causing the "high spot" in the middle of the stock. I'd tweek the feed
> rollers/in table/out table positions, if I were you. This may take =
some
> large amount of time, but will be worth it, if the derned thing will,
> "finally, cut "true". You might also try running the stock with scrap =
stock
> bonded to it, making the stock wider, (ie "sandwiched")(double stick =
tape,
> comes to mind, here.). Your machine may not take kindly to narrow, (as =
in
> width), strips.
> Joe Garrett, RPT, (Oregon)
>=20
> Mark your stock so that the each layer is reversed from the outfeed =
side of
> your planer.  This will allow the machine to plane the stock flat with =
a
> slight taper from side to side, but reversing the boards in the stack =
will
> cancel the taper.
> Also depth of cut is a factor. Make final passes as light as possible =
to
> avoid any flex that may occur in the machine.
> Some machines allow for adjusting one side of the bed or cutterhead to
> correct a taper.  This may not be covered in the owner's manual, but =
some
> close inspection may reveal where shims may be added.
>=20
> Paul C
>=20
> _______________________________________________
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> 
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