Tips,tricks And Rule Of Thumb
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  1. #1
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    Tips,tricks And Rule Of Thumb

    Hi all,
    I don't know if this is the right place to post this ?

    I wanted to start a thread to share and hopefully learn some tips , tricks and rule of thumb,so here gos. remenber pics are cool.. thanks Daye

    #1 rule of thumb pipe threads... When threading pipe a good way to test your threads is to put a fitting on hand tight. Then back if off ,and count the turns. You want about 3 1/2 turns + or - a 1/2 turn.for std black sch 40. for harder pipe like stainless pipe go 4, for softer pipe like galvanize pipe go closer to 3. this is a good rule of thumb for 1'' to 2'' pipe.
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  2. #2
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    Re: Tips,tricks And Rule Of Thumb

    Reminds me of the guy who thread a full 20 ft length of pipe ....when asked what the F*&% he was doing he said " I'm trying to figure out were the threads are coming from"

  3. #3
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    Re: Tips,tricks And Rule Of Thumb

    Trick

    A quick and easy way to check lathe cutting tool center.
    Place a steel pocket rule in between the tooling and the work. If the ruler stands staight up your on center. If the ruler leans one way or the other adjust the cutting tool as needed. Daye
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  4. #4
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    Re: Tips,tricks And Rule Of Thumb

    84zmike, good point.
    Tip:
    Threads should be 1'' long or about 2 threads past the die as seen in pic above.

  5. #5
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    Re: Tips,tricks And Rule Of Thumb

    Tip: take chuck key out of lathe before turning it on.
    M Fed

  6. #6
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    Re: Tips,tricks And Rule Of Thumb

    Tip...
    Screw the ruler..
    Get good enough to do it by eye..

    Sometimes it's better to cut above centerline..
    Sometimes below..

    Tip...
    Oil your machine everyday!!

    Tip..
    Save old brass bushings of all sizes to use when grabbing a finished journal so you don't leave teeth marks in your piece..

    I cut a 1/2" thick ring from the bushing and take about 1/4" out of the wall..
    That way there you can squish the crap out of it..

    I got a million of 'em..

    But I 'aint telling them all to anyone..

    ...zap!


    I am not completely insane..
    Some parts are missing

    Professional Driver on a closed course....
    Do not attempt.

  7. #7
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    Re: Tips,tricks And Rule Of Thumb

    Safety tip - welds are hot!
    The difference between art and craft is the quality of the workmanship. I am an artist.

  8. #8
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by eyeshurt View Post
    Tip: take chuck key out of lathe before turning it on.
    I have seen it happen before , then someone turns it on and well so far it hasn't killed anyone.

    Another tip is if your doing offset turning on the lathe , make sure your cutter is far enough away from the workpiece when you turn it on.

  9. #9
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    Re: Tips,tricks And Rule Of Thumb

    Over here we had a few ad for Pizzas a while back.
    "Dougie the delivery boy" had a few adventures , became a bit of a cult figure and in one ad he delivered to his own house. After giving the Pizza to his Dad he asked for a tip.....
    His Dad replied:

    "A tip?.....Mmm OK, Work hard and be good to your mother!" then Dad just closed the door.
    A good guess is better than a bad measurement

  10. #10
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    Re: Tips,tricks And Rule Of Thumb

    Just because aluminum isn't red, doesn't mean its' not HOT!!! A sawzall can be made to cut under, and over stuff by bending the blades. And, you can weld 2 blades together to cut at least a foot and a half in a hole. Basically, never leave home without the sawzall...
    I think she is Bi-polar. She is a bear sometimes. Does this make her a BiPolar bear????

  11. #11
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by Bikespot View Post
    I have seen it happen before , then someone turns it on and well so far it hasn't killed anyone.

    Another tip is if your doing offset turning on the lathe , make sure your cutter is far enough away from the workpiece when you turn it on.
    And check your speed settings before you turn it on. I saw a 15 pound offset weight come off at high rpm because the night cleanup kid had bumped the lever from 15rpm to 150rpm. Almost hit me....did hit the Bridgeport I was running hard enough to knock it loose from the anchor bolts..

  12. #12
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    Re: Tips,tricks And Rule Of Thumb

    I've been going to post this for a few years now. It's been talked about quite a few times here. releif hole for holesawing. works on just about anything. Workgreat in wood counter tops, cuts drilling time in half. Here are a few pics to explain
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  13. #13
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    Re: Tips,tricks And Rule Of Thumb

    Ok, pretty obscure, I know.

    Miller Maxtron 450 machines.

    Often times, users unfamiliar with this machine will turn it on for the first time & be unable to adjust their voltage or amperage presets from the panel. They freak out & immediately think something is wrong with the machine.

    The Contactor Switch (third toggle switch down on the forward panel in the pic) MUST be in the 14/17 Remote position to allow adjustment of preset amps & volts. In the contactor closed position, the DRO's will display actual volts & amps while welding however, no adjustment of them is possible.

    Some may laugh, but I have picked up more than a few of these machines that were deemed "broken" (even by a Miller Service Center once) but worked perfectly for next to nothing because the user did not know the proper operation procedure.

    Well, that's all I got for now.
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    Last edited by 7A749; 03-01-2011 at 09:29 PM.
    Miller Maxtron 450 W/
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  14. #14
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    Re: Tips,tricks And Rule Of Thumb

    Keep them coming guys. I love the steel rule trick. I will have to try that one.

  15. #15
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by 7A749 View Post
    Ok, pretty obscure, I know.

    Miller Maxtron 450 machines.

    Often times, users unfamiliar with this machine will turn it on for the first time & be unable to adjust their voltage or amperage presets from the panel. They freak out & immediately think something is wrong with the machine.

    The Contactor Switch (third toggle switch down on the forward panel in the pic) MUST be in the 14/17 Remote position to allow adjustment of preset amps & volts. In the contactor closed position, the DRO's will display actual volts & amps while welding however, no adjustment of them is possible.

    Some may laugh, but I have picked up more than a few of these machines that were deemed "broken" (even by a Miller Service Center once) but worked perfectly for next to nothing because the user did not know the proper operation procedure.

    Well, that's all I got for now.
    I'll keep this in mind, while surfing Craigs list.
    Daye
    Pound to fit, paint to match

  16. #16
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by MatthewF View Post
    Tip: take chuck key out of lathe before turning it on.
    I thought they were self ejecting.
    I offer three choices: Good, Fast, & Cheap. You may pick two.

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  17. #17
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    Re: Tips,tricks And Rule Of Thumb

    A few more mfor holesaws.
    When holesawing stainless steel sheet metal suck as kitchen hoods , Elmers glue works great. I have no idea why. but you can twice as many holes with it. I sure there better things. Elmers is easy to get if you have kids

    Piggy back holesaws. some arbors you can put a bigger holesaw on the backside, and use the small one for a pilot bit.

    Most holesaw arbors take a 1/4'' pilot bit. If you can make your own for the appaction. Here's a pic #3 of one for a dirt track guy, they drill A arm with this.

    Plumber puddy works good to make a dam around a holesaw to hold cutting fluid in.
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  18. #18
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    Re: Tips,tricks And Rule Of Thumb

    Tip for Welding

    If its got slag, you drag...

  19. #19
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    Re: Tips,tricks And Rule Of Thumb

    Tip...
    Use flashback valves on all your propane accetelyne powered cutting/Heating devices..



    ...zap!


    I am not completely insane..
    Some parts are missing

    Professional Driver on a closed course....
    Do not attempt.

  20. #20
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    Aug 2007
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    1,765

    Re: Tips,tricks And Rule Of Thumb

    W=3/4T

    Meaning that a properly done fillet weld usually only need be 3/4 of the thickness of the thinner of the base material. More than that and you are just wasting filler.
    Have we all gone mad?

  21. #21
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by sn0border88 View Post
    W=3/4T

    Meaning that a properly done fillet weld usually only need be 3/4 of the thickness of the thinner of the base material. More than that and you are just wasting filler.
    Unless you're welding to ASME code then it's 100% of the thickness of the thinner metal, minimum. Sometimes I design odd weld fillets because it saves me from having to up the pipe or shell thickness. Your tip is good in general cases, though.

    Protip #1: Read and understand the welding symbol on the print.

    Protip #2: When in doubt, 100% Penetration (or CJP for you AWS folks)

    Protip #3: Dye penetrant is fast and cheap, failed X-Rays are neither.

  22. #22
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by Fegenbush View Post
    Unless you're welding to ASME code then it's 100% of the thickness of the thinner metal, minimum. Sometimes I design odd weld fillets because it saves me from having to up the pipe or shell thickness. Your tip is good in general cases, though.
    Here is where I referenced that from, just to show that I didnt make it up.



    That comes from section 2 in the Lincoln bible.
    Have we all gone mad?

  23. #23
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by tigmusky View Post
    A few more mfor holesaws.
    When holesawing stainless steel sheet metal suck as kitchen hoods , Elmers glue works great. I have no idea why. but you can twice as many holes with it. I sure there better things. Elmers is easy to get if you have kids

    Piggy back holesaws. some arbors you can put a bigger holesaw on the backside, and use the small one for a pilot bit.

    Most holesaw arbors take a 1/4'' pilot bit. If you can make your own for the appaction. Here's a pic #3 of one for a dirt track guy, they drill A arm with this.

    Plumber puddy works good to make a dam around a holesaw to hold cutting fluid in.
    Elmers glue for what? Cutting fluid?

  24. #24
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by T-Bird View Post
    Elmers glue for what? Cutting fluid?
    Yep! for cutting fluid. A old fitter showed me that. I'm sure there are far better cutting fulids for holesawing stainless. This works.

    Daye
    Pound to fit, paint to match

  25. #25
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    Re: Tips,tricks And Rule Of Thumb

    Quote Originally Posted by zapster View Post
    Tip...
    Use flashback valves on all your propane accetelyne powered cutting/Heating devices..



    ...zap!
    Whats better on the torch or regs?
    Pound to fit, paint to match

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