LumberJocks

Jointer experts, help.

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by Routerisstillmyname posted 07-25-2010 07:48 PM 978 views 0 times favorited 5 replies Add to Favorites Watch
View Routerisstillmyname's profile

Routerisstillmyname

705 posts in 2167 days


07-25-2010 07:48 PM

Few months back, I had set my jointer to what I consider perfect NO SNIPE
whatsoever Cuts.( those that know my obsession with 0.0001 calibration ) will know what I mean.
Now getting ready to do a serious project and I ran a board and oh my, choppy” surface on the wood.
I tossed out the old blades and slapped a new set in there and spend the last 3 hours getting it back to NO SNIPE condition but the choppy surface is still there even on different types of wood.
The only thing I can guess is this freaking heat must have somehow affected the belt or something?

-- Router è ancora il mio nome.


5 replies so far

View knotscott's profile

knotscott

5472 posts in 2034 days


#1 posted 07-25-2010 07:58 PM

Not sure if scalloping is what you’re getting, but any cuts made using straight blades on a rotating cutterhead like on a jointer or planer are prone to some scalloping by nature of the rotation of the blades. Speed is a big contributor, but depth of cut, blade alignment, the material itself, and blade sharpness are also factors. I don’t consider a surface from a jointer or planer to be finish ready without some help. A hand plane or sander generally take care of it easily.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View John Ormsby's profile

John Ormsby

1280 posts in 2395 days


#2 posted 07-25-2010 09:05 PM

Jointers can snipe if the outfeed table is set too low to the blade. Scalloping normally occurs with the knives not being properly aligned.

-- Oldworld, Fair Oaks, Ca

View TomHintz's profile

TomHintz

207 posts in 2056 days


#3 posted 07-25-2010 09:16 PM

Most often the series of ridges seems to come from either moving the wood too fast or having one knife a tick higher than the others. If you could measure the depth of the ridges you’d see how little the one knife has to be out to do that.
I have a story at the link below that looks at common jointer problems and the most common fixes. That snipe deal is in there and is genreally from the outfeed table being lower than the top of the knife arc.

Jointer Problems & Fixes Story

-- Tom Hintz, www.newwoodworker.com

View Routerisstillmyname's profile

Routerisstillmyname

705 posts in 2167 days


#4 posted 07-26-2010 01:02 AM

You nailed it Tom, Think Before Adjusting….......

-- Router è ancora il mio nome.

View fussy's profile

fussy

980 posts in 1709 days


#5 posted 07-27-2010 06:05 AM

Knott Scot and Boardsmith have it right. Slow down. Neither a jointer NOR a planer will give you a finish-ready surface. Some planers will come close, but you’re looking for too much precision from wood, and you’re looking for it too early in the stock preparation process.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase