Electric Planer Blade Alignment

[Overs Pianos]

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At 7:01 AM -0400 2/10/03, Farrell wrote:
>
>I have a DeWald 12-1/2-inch electric planer. I'm having trouble 
>getting perfect (or nearly enough) blade alignment. The machine 
>comes with these two little plastic/magnetic jiggydoos that are 
>supposed to allow for proper alignment - and they come pretty close 
>if you are real careful with them. But even after doing the best job 
>I can with these, one side of the blades will cut a tiny bit off a 
>board when the other side doesn't touch the board. Anyone found a 
>jig/method that provides better alignment?

Hi Terry,

I used to have similar problems getting the blades set accurately 
until I conjured up a method of setting them using two dial 
gauge/magnetic base sets. I have an Italian Li Atigiana (sp?) 16" 5hp 
machine which is a very nice unit, but the blade setup jig which came 
with planer is next door to useless.

If the dial gauges are first positioned (with their plungers oriented 
vertically downwards) so that they read zero with bases attached to a 
flat surface (the tailing out table of your planer is ideal), they 
can then be carefully placed such that their respective plungers are 
positioned directly over the axis of the planer spindle (one over 
each end of the spindle).

If the blades are set at the correct height, as each comes into 
contact with the two plungers, the dial indicators will 
simultaneously rise to zero before falling away again as the blade 
passes by. Note that it is important that the dial gauges be set so 
that their plungers can extend only a couple of thou' further than 
the zero point when first set up on the flat surface. This is 
important to ensure that the blades can come into contact with the 
plunger on each dial without moving the dial  indicator/base from its 
position over the spindle.

I hope this is helpful. The concept is difficult to explain without 
using an image.

Ron O.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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