I'd have to opine that, a jointer being considered a finishing machine (one
that leaves a finishable surface), if your jointer is leaving tooling marks
something is amiss in Denmark.
I can think of only three reasons a jointer would scollop. One blade is too
high, Too deep a cut, or you are using the improper (too fast) irregular
feed speed for the species. Well, make that four reasons, the fourth being
any combination of the above.
All things being equal (properly set up machine, sharp blades, correct feed
direction) clean cuts are related to CPI (Cuts per inch). and on a jointer
it is the operator that determines that It's one of the reasons Delta and
De Walt now produce variable speed planers. It's also the reason the De Walt
would be my first choice since it's slowest CPI figure is the same as the
Delta's fastest speed thanks to the third blade..
Just an opinion of course but....................
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