dpb wrote in :

On 12/11/2012 2:08 PM, Han wrote:
...

My jointer is a 6" Delta Shopmaster model JT160. The instructions
say nothing about my problem. I am rather sure it's my technique
that did this. I have to get the thing in a better place and
practice with some disposable wood. OTOH, one of the jigs that Karl
(Swingman) mentioned may do the trick too.

...

OK, I wasn't familiar w/ it--that is a benchtop model.

I did some searching and found several reviews and downloaded the
manual. About half the reviews said they had trouble w/ the beds
either not being coplanar or at least one or the other not
flat/straight. That would certainly cause problems; the longer the
work, the more evident a problem.

One mentioned his outfeed table sagged and he was able to shim it--it
looks to me from the picture on the cover of the manual that there are
four mounting screws for the tables--I'd expect one could manage to
fix a coplanar problem by judicious diddling thereat--if the tables
aren't actually flat, however, there's nothing to be done but have
them surface ground or get warranty service to repair the problem (as
one review I saw said a local service center did for his).

All in all, I'm sorry to say, it looks like a marginal machine but one
would hope one could manage to tune one up...

I'm going to be busy doing other stuff until the beginning of next week.
But I will take a look and see what I can do to tune it up. Or I will
just build me a sled.

--
Best regards
Han
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