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Thread: Thicknesser tuning ? I found the problem!! UPDATED

  1. #1
    Join Date
    Feb 2007
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    Catalunya
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    Thicknesser tuning ? I found the problem!! UPDATED

    Hi guys.
    Seems that pressure is diminishing and that I have a bit more time to ww and to log on. So I set up this moring to fine tune my jointer/thicknesser.

    THe jointer part is easy and after a few adjustments I got it right. But I had detected some time ago that the thicknesser needed adjustment as well as I cannot get parallel surfaces on it.
    This is my jointer/thicknesser:
    Click image for larger version. 

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    At the beginning I thought that these small headless bolts were to adjust the bed but they are only to lock the nuts that carry the bed up and down. Unless it has to be adjusted from below or that the chains that hook onto the pinions have got some slack I can't find both the cause of the misalignement or the way to fix it.
    Click image for larger version. 

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    On the owner's manual there is no mention at all about it and on youtube I have only found the way to adjust the blades on the jointer, not the thicknesser bed, so if any of you have any clue I would appeciate any help that you can get me.
    I include the exploded view of the manual in case it helps.

    Many thanks in advance.Click image for larger version. 

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    Last edited by Toni Ciuraneta; 04-16-2016 at 10:01 AM.
    Best regards,
    Toni

    __________________________________________________ __________________________________________________ _________________
    web site:http://www.toniciuraneta.com
    I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...

  2. #2
    Join Date
    Mar 2007
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    There are two parts to parallel cutting; the table and the cutting head. If the table is not adjustable, maybe the cutter head is?
    ++++++

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  3. #3
    Join Date
    Apr 2007
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    No, not all of SoCal is Los Angeles!
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    I do not see an adjustment for the bed. Altering one of the corner's position on the threaded rod would cause binding. This makes me think that the head, or more likely knives, are adjusted to bring things into alignment. What you are after is when the knife passes BDC (bottom dead center; do you use that term over there?) the distance between anywhere on the knife edge and the platen is consistent. A Rotocator is helpful but, rather than send $100 I just cobbled this together from items I already had.



    I notice that quite awhile after this Rockler came out with a commercial version. I assume this is just a coincidence. Like any tool alignment effort, patience is your friend. Time spent making careful settings, checking and rechecking will pay big dividends going forward.
    Last edited by glenn bradley; 04-10-2016 at 02:34 PM.
    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

  4. #4
    Join Date
    Sep 2015
    Location
    Central valley, calif.
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    112
    Toni, you have adjusted the knives parallel to the out feed table of the jointer. So the thicknesser table must also be parallel to the outfield table of the jointer, is there an adjustment on the jointer out feed to make it parallel to the thicknesser table? The knives cannot be parallel to both tables at same time if the tables are not parallel. If there is an adjustment on the jointer the processes would be ; adjust the jointer out feed parallel to the thicknesser table, then adjust the knives parallel to the jointer. I do not have a combo machine and I tend to say what's on my mind, right or wrong, but I do learn a lot that way

    Bill
    Last edited by william watts; 04-11-2016 at 09:43 AM.

  5. #5
    I have Grizzly 15" planer. The bed is raised and lowered by four threaded posts via chain similar to yours. The chain parted and I had a difficult time rethreading it due to clearance issues. I called Grizzly and he explained how to do it. I was also concerned about the resulting table alignment if one or more shafts had turned more than the others thus throwing the bed out of alignment. He told me if that was the case I'd need to loosen or remove the chain in order to turn the individual screw shafts to realign the bed. Hop this helps.

    Alan

  6. #6
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    Quote Originally Posted by Alan Marchbanks View Post
    I have Grizzly 15" planer. The bed is raised and lowered by four threaded posts via chain similar to yours. The chain parted and I had a difficult time rethreading it due to clearance issues. I called Grizzly and he explained how to do it. I was also concerned about the resulting table alignment if one or more shafts had turned more than the others thus throwing the bed out of alignment. He told me if that was the case I'd need to loosen or remove the chain in order to turn the individual screw shafts to realign the bed. Hop this helps.

    Alan
    Hi Alan.
    This is what I think may have happened. I will check that, bt one thing I've learnt is that one needs to be in the proper frame of mind and relaxed.

    Glenn, I'm making a similar gauge to the one you show me, as I have a comparator (we call it that way here) it is matter of finding a block of hard wood or better aluminium like yours and it will help a lot.

    William; I don't think there is any way of making the outfeed table parallel to the thicknesser one, in fact the outfeed table needs to be removed if you want to use the thicknesser option. What can be tuned is the parallelism of the infeed table with the outfeed table of the jointer, and that I've checked and it is OK.

    Thank you all for all your tips. I'll keep on trying and let you know the outcome.
    Best regards,
    Toni

    __________________________________________________ __________________________________________________ _________________
    web site:http://www.toniciuraneta.com
    I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...

  7. #7
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    Thicknesser repair started UPDATE!

    Today I started to look thoroughly what was wrong with my thicknesser and what this is what I found, the main pininion that drives the chain that turns the threaded bars to move the bed up and down has some teeth worn out and some missing, and the same happens with all the other four in more or less seriousnes.

    So the solution is either getting the spares and mount them and adjust myself (which I still don't know how to) or taking it to be repared. If I could find similar ones made of steel and not aluminium I would do it myself. Why on earth they use aluminium pinions! I know it is to make the machine cheaper but...
    You can see the pinions here.
    Click image for larger version. 

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    Last edited by Toni Ciuraneta; 04-25-2016 at 06:45 PM.
    Best regards,
    Toni

    __________________________________________________ __________________________________________________ _________________
    web site:http://www.toniciuraneta.com
    I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...

  8. #8
    Join Date
    Jun 2008
    Location
    GTA Ontario Canada
    Posts
    12,251
    Toni with so many companies offering laser cutting services if you did a cad drawing of the part i bet u could get a steel set fabricated pretty reasonably. By comparison the replacement part from manufacturer will just do it again.
    we also have a store here that sells stand alone sprockets and stand alone hubs that fit the sprockets. if u provide the shaft dimension and then tooth and sprocket diameter i can take a look and see if they have something that would work. easy to make a plan to send u.

    check here Toni if something they got would do the job. shipping is easy for me to take care of.
    http://www.princessauto.com/en/searc...&Ntt=sprockets




    Sent from my SGH-I337M using Tapatalk
    Last edited by Rob Keeble; 04-16-2016 at 01:40 PM.
    cheers

  9. #9
    Join Date
    Jul 2011
    Location
    The Gorge Area, Oregon
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    4,698
    On this this of the pond those are called "sprockets" which might help searching for replacements.

    Surplus center has a pretty good selection of them:
    http://www.surpluscenter.com/Sprockets/
    Most of those are imperial measure though and I suspect you'll need metric, although if you can find something close you could buy a reamer and ream to fit.

  10. #10
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    Dec 2006
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    Bellingham
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    2,449
    Quote Originally Posted by Ryan Mooney View Post
    Most of those are imperial measure though and I suspect you'll need metric, although if you can find something close you could buy a reamer and ream to fit.
    I Googled "metric sprockets" and found many hits and this just being one of them. https://mdmetric.com/prod/ptic/332_PTI_CATALOG.pdf

    There is not much left of those aluminum sprockets. I have been frustrated with many products that fail because of some plastic part that failed. Often it is a key part that common sense should have dictated that it be made of metal. But then I am making the assumption that the manufacturer is wanting his product to last, when the opposite may be true. I think they are counting on replacement sales.
    “When love and skill work together, expect a masterpiece.” - John Ruskin
    “Nowadays people know the price of everything and the value of nothing.” - Oscar Wilde

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