Page 1 of 2 12 LastLast
Results 1 to 15 of 18

Thread: Frustration with face jointing (pics)

  1. #1

    Frustration with face jointing (pics)

    I'm having a problem face jointing longer boards. They start to taper down the whole length, and eventually it gets so bad that I can't joint the whole length. Does that make sense? Here's a picture that hopefully illustrates what I mean:



    And now it's turned on its side so you can see the taper better:



    What am I doing wrong?

  2. #2
    your outfeed table is too high. You must set it dead even with the knife arc or 0.001 or so below the knives. Too far and you will get snipe. It is illustrated in this thread:
    http://www.sawmillcreek.org/showthre...18082#poststop

  3. #3
    Join Date
    Aug 2008
    Location
    Brookhaven, MS
    Posts
    67
    Wow - that's a pretty piece of walnut. What are you making?
    I'll be watching this thread for suggestions, too...

  4. #4
    Matt, I would agree your tables are not co-planer or there is a control issue. How long are the jointer tables? If you cannot support a bit over half of your board length ahead of and after the cutters, are you using roller stands or some other method for support and control?

    If support is an issue, a planer sled could help as well but, with the jointer setup OK and the infeed and outfeed fully supported, there should be no problems.
    “If liberty means anything at all, it means the right to tell people what they do not want to hear.” -- George Orwell


  5. #5
    Join Date
    Mar 2007
    Location
    Central Vermont
    Posts
    1,081
    I would re-evaluate the setup of the jointer and check that the knives are set properly, and then adjust the out feed table. You should also check and make sure the tables are flat, strait in relation to each other, and shim as needed.

    As far as technique, make sure the tables are free of sawdust, and on a long board setup additional in feed/out feed support as needed to help you control the board. Be sure to transfer pressure from the in feed to the out feed side evenly.

    Also it helps to take light passes as well.

    Lastly wherever possible you should break down long boards to a size just larger than the finished part. Not only will you have to remove much less material to flatten out a face, but it will be signifigantly easier to work with it.

    Btw that is a beautiful piece of walnut.

  6. #6
    Thanks for the replies.

    I think it's the outfeed table. Another site suggested that my knives might be worn down below the outfeed table after so much use. I believe that's the problem. When I find out, I'll report back.

    Regarding the walnut, I recently bought close to 300 BF of quartersawn 6/4 and 8/4 walnut for $500. The cool part is that this is for a commissioned gun cabinet, and the customer is the one who paid for all of the walnut.

  7. #7
    Quote Originally Posted by Matt Campbell View Post
    The cool part is that this is for a commissioned gun cabinet, and the customer is the one who paid for all of the walnut.
    That's great!
    “If liberty means anything at all, it means the right to tell people what they do not want to hear.” -- George Orwell


  8. #8
    Join Date
    Feb 2004
    Location
    S.E. Tennessee ... just a bit North of Chattanooga
    Posts
    954
    Hey Matt .. if you need your jointer knives ground/sharpened, give me a call .. .. I have a Tormek with the accessory for doing them, and I have a dial-indicator knife setting jig you can borrow, or I can stop by and do them for you one afternoon.

    <<<__ Bøb __>>>

  9. #9
    Join Date
    Apr 2005
    Location
    Rockville, MD
    Posts
    1,050
    What an offer! Just another reason I belong to this outstanding group. I've put several people onto our site. You guys and gals is great!!!

  10. #10
    Thanks, Bob. I'm sure I'll be up in your area soon.

  11. #11
    Join Date
    Sep 2005
    Location
    Sacramento California
    Posts
    331

    The machine might be fine, check the board orientation

    Matt, does this happen on everyboard or just on some. I have seen this happen when I have a cupped board and joint the wrong side. If the board has any bowing in it then the cupped side should face down so that the outside edges touch the tables and the middle is above the table. If a cupped board has the middle touching the table and the ends off of it, you can get a result exactly like what you have. Hope that makes sense.

  12. #12
    It just seems to happen on the longer boards. I've made a habit of feeding boards through the way you described so I don't think that's the problem.

    Instead of messing with the machine last night, I went ahead and ripped the board into 3 pieces since I was going to end up doing that anyway. Of course it's not a permanent solution, but it was a quick fix. For some reason, it worked just fine once I had narrower boards.

  13. #13
    Join Date
    Dec 2006
    Location
    Webster Groves, MO
    Posts
    655
    Blog Entries
    10
    I had a similar problem a few years ago and my knives were slightly out of alignment. It wasn't very apparent on short boards, but became a major issue on longer boards. I was getting the exact same cut as your showing.

  14. #14
    Also, I push down very hard on the outfeed side. Could that be contributing to the problem?

  15. #15
    Join Date
    Nov 2006
    Location
    Fallbrook, California
    Posts
    3,509
    Quote Originally Posted by Matt Campbell View Post
    ..
    Regarding the walnut, I recently bought close to 300 BF of quartersawn 6/4 and 8/4 walnut for $500. The cool part is that this is for a commissioned gun cabinet, and the customer is the one who paid for all of the walnut.
    I sure hope you plan to post your project here.
    Don Bullock
    Woebgon Bassets
    AKC Championss

    The man who makes no mistakes does not usually make anything.
    -- Edward John Phelps

Similar Threads

  1. Hand Plane Advice
    By alex grams in forum Neanderthal Haven
    Replies: 6
    Last Post: 08-21-2008, 10:17 AM
  2. face frame widths - built in oven next to pantry
    By Roger Jensen in forum General Woodworking and Power Tools
    Replies: 7
    Last Post: 08-10-2008, 5:11 PM
  3. David's Kitchen part three (w/8 pics)
    By David Eisan in forum General Woodworking and Power Tools
    Replies: 10
    Last Post: 10-05-2006, 10:00 PM
  4. Taking pics of your turned pens??
    By Dennis Peacock in forum General Woodworking and Power Tools
    Replies: 7
    Last Post: 08-03-2004, 1:09 AM
  5. Saw mills pics
    By Doug Jones in forum General Woodworking and Power Tools
    Replies: 0
    Last Post: 07-29-2003, 9:15 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •