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  1. #1
    Join Date
    Apr 2005
    Location
    Warragul
    Age
    68
    Posts
    577

    Default obsessive, compulsive, fanatical about tolerances disorder

    I suffered from the disease “Dial Indicatoritus”. I used to check blade parallelism on my tablesaw almost daily and more recently the run out on my drill press. I blame youtube and some of the posts on this site and other woodwork sites that claim you must have really small tolerances on your equipment, for example less than 3 thou on saw blade alignment with the mitre slots and less than 2 thou run out on a drill press. So how did I get cured. One person just said put away your dial indicator and start cutting and drilling and if you get clean, square cuts and holes then go ahead and make something and don’t worry about it. Good advice.
    So on my table saw I get dead square smooth cuts on crosscutting and dead smooth parallel cuts with no burn marks when ripping. Does it matter that my dial indicator indicates a reading that wouldn’t be accepted on this site? Also my drill press delivers clean accurate circular holes. I drilled a hole with a 1” forstener bit and measured it accurately and it was exactly 1”. I then drilled a ½” hole with a normal bit then put the shank of that drill bit back in the hole and it was a snug fit so that it wouldn’t fall out when the timber is held upside down. Once again it was exactly ½”. All of this despite an unacceptable run out reading on a “cheapie” hafco machine
    So what I have I learned? If your equipment does what you want it to do, then forget about tolerances and what others say they “should” be.

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  3. #2
    Join Date
    May 2010
    Location
    Bendigo
    Posts
    776

    Default

    Oh Barri, if only you were closer, not the other side of the state - then you could come over and offer me some counselling, for I STILL suffer from "Dial Indicatoritis" (at least now I know it has a name, perhaps that's the first step to healing )

    On another thread one of the guys chipped me about worrying about three thou out of alignment on my jointer between the two tables, BUT I STILL CAN'T STOP FRETTING!!

    Yeah, some of us STILL need help

  4. #3
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,793

    Default

    Get a hatchet, a spoke shave or a draw knife, and a brace and bit and go make some bush furniture.

  5. #4
    Join Date
    Oct 2013
    Location
    Perth, Australia
    Posts
    1,813

    Default

    Quote Originally Posted by BobL View Post
    Get a hatchet, a spoke shave or a draw knife, and a brace and bit and go make some bush furniture.
    I'd love to do that some day. Watched 'Alone In The Wilderness' again the other day (highly recommended, it's on YouTube) and Dick Proenneke makes some great stuff with just simple hand tools.

  6. #5
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    6,127

    Default

    Quote Originally Posted by Bendigo Bob View Post
    Oh Barri, if only you were closer, not the other side of the state - then you could come over and offer me some counselling, for I STILL suffer from "Dial Indicatoritis" (at least now I know it has a name, perhaps that's the first step to healing )

    On another thread one of the guys chipped me about worrying about three thou out of alignment on my jointer between the two tables, BUT I STILL CAN'T STOP FRETTING!!

    Yeah, some of us STILL need help
    The jointer at work is out by 4 thou (tables are fine, the cutter is higher on one side than the other) and it's made no appreciable difference. If i had my way I'd fix it, but it's just not worth the time and effort to shim the bearing housing (Shelix head, so can't just adjust the knives)

    The bearing on the drill press is so bad that you can actually feel the slop in it and the chuck is buggered so to get bits running true you just tap them sideways, but we don't need it to be any better so we just live with it

  7. #6
    Join Date
    Oct 2014
    Location
    Caroline Springs, VIC
    Posts
    1,645

    Default

    If it is good enough, then it is PERFECT!

    I have never owned or used a dial indicator. They look like a good bit of kit for 'knowing'. But I already know my jointer tables are not coplanar and I joint wind into my boards. I know that the operator side of the outfeed table is low causing trailing snipe on wide boards. I know that the slider on panelsaw isn't parallel to the blade because it sounds different at the start of the cut than at the end of the cut. I know that my rip fence is angled slightly towards the blade which gives me horrific dramas now and then when ripping boards. I don't "know" if my drill press runs true or runs out, but I really couldn't care less if my 8mm drill bits are making a 9mm hole, I'll just use a 7mm bit

  8. #7
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    6,127

    Default

    I'd LOVE to have every machine set perfectly (I even bought a dial gauge that reads to 0.1 thou for this purpose), but it's very much a case of diminishing return on investment; especially when the materials we're working with can move by more than the error overnight.

  9. #8
    Join Date
    Apr 2005
    Location
    Warragul
    Age
    68
    Posts
    577

    Default

    Quote Originally Posted by woodPixel View Post
    If my TS isn't perfect it drives me crazy.
    When I first got my table saw the blade was under 2 thou out from parallel to the miter slots. That is more than an acceptable figure but silly me decided to get it to 1 thou because on youtube they make it look so easy. I ended making it worse, much worse and couldn't get it back to that wonderful initial figure. I was so upset that my brand new table saw was "out" of alignment I ended paying a technician to fix it but the best he could get it was about 5 or 6 thou. It has remained at that figure ever since but as I said on the original post my TS is cutting perfectly square, parallel and smooth without any burning or teeth marks. I reckon some of those "acceptable" tolerances are too low. My drill press is measuring around 1 thou on the quill, about 4 thou on the arbor and worse on the chuck (chuck is the culprit) but it is drilling nice accurate holes. So I am going to ignore what everyone says.

    So BendigoBob, I'll give you free counseling next time I'm in Bendigo

  10. #9
    Join Date
    May 2011
    Location
    Albury
    Posts
    3,039

    Default

    Quote Originally Posted by elanjacobs View Post
    I'd LOVE to have every machine set perfectly (I even bought a dial gauge that reads to 0.1 thou for this purpose), but it's very much a case of diminishing return on investment; especially when the materials we're working with can move by more than the error overnight.
    So true Elan! This is woodwork we're doing not precision engineering. You can set everything as precisely as you like but the material will defeat you at every turn!

  11. #10
    Join Date
    Apr 2005
    Location
    Warragul
    Age
    68
    Posts
    577

    Default

    Very true! My TS alignment reading changes everyday. I remember one day it was almost spot on and the next day it was back to 5 or 6 thou. I should have realised then to stop fretting about this.

    I now have locked up my dial indicator and thrown away the key.

  12. #11
    Join Date
    Jan 2009
    Location
    Brisbane
    Posts
    1,770

    Default

    Rule number one: Don't sweat the small stuff.

    Rule number two: Remember, it's all small stuff.

    We ain't making' rocketships are we.
    There ain't no devil, it's just god when he's drunk!!

    Tom Waits

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