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Thread: Line boring

  1. #21
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    I use a D/W laser to buck things in where in the past most used a bright light & plumb bob or string to cast a shadow for a reference. With a little practice you can get to a 64th or so pretty quickly. (depending)...

    Wes really needs a "pick feed" or Geneva mechanism for that cool bar he made & go full auto with it. (I forgot about that post).

    Matt

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    The lead screw is modeled on a Bridgeport so I can add an off the shelf power feed when funds allow.

  3. #23
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    Here is the laser used
    I drilled the end of the bar and held it with a set screw
    And used a square with some masking tape on the blade as a target


    screenshot_2015-12-19-11-09-13.jpg
    Last edited by Hbjj; 12-20-2015 at 09:50 AM.

  4. #24
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    Quote Originally Posted by ewlsey View Post
    The lead screw is modeled on a Bridgeport so I can add an off the shelf power feed when funds allow.
    I really like it! So consider the following to put in the bag.

    The most simple feed is to use the turning bar to rotate the feed screw in a ratio to bar rotation. So – A cam like feature attached to the bar & ticks a star wheel attached to the feed screw will get that done. Then all you need to do is turn the bar (by whatever means). In your mind you know that the feed screw now needs a keyway if the bar is pushed - or it needs a static position if a saddle is pushed over the bar with a feed screw in a trough or groove in the bar (these are the big bars).

    Geneva drives have infinite feed rates, but are harder to build. So given any useable surface finish – in reality a few cams & star wheels will get it done. So - NO Geneva drive for me...

    With either of the above – you don't need any power or motors… Yea it'll be tough & shallow cuts – but a bore can be made with only hand power – by one person. And no matter how fast or slow the bar turns the step-overs are the same.

    About any which is faster part??? I've used rented “big C - CNC” bars & they a real fast if you have tapers or barrel features… But it doesn't set itself up – so for a straight bore it's the same if you have the same horsepower turning the bar...

    Matt

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    Thumbs up

    Repairs to a boiler ash grate shaker bearing
    20150513_112750.jpg

    I have a hard time with calipers at the .001 press a spherical bearing needs so I built this so I can use a boring head and snap gauges
    Attached Thumbnails Attached Thumbnails 20150511_162609.jpg   20150513_124904.jpg   20150513_140517.jpg  

  6. Likes sfriedberg, 4GSR, Trevor34, I_AM_MACHINE liked this post
  7. #26
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    Default Line boring

    Has anybody ever put snap ring grooves in a bore while line boring. I had a rush job that required snap ring grooves in about a 4" bore. I ended up modifying the end of a bar to accept a small Narex head. It chattered but got the grooves done. Since then we have acquired the facing and grooving attachment from Climax.

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    Quote Originally Posted by ewlsey View Post
    You could always build your own line boring rig. We're all machinists after all...

    Attachment 156698Attachment 156699Attachment 156700Attachment 156701Attachment 156702
    Very nice work! I'm going to have to copy that!

    Item # 463 on the to-do list...

    Kevin

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    (click on vid)



    A few recent projects

    Not line boring....but rather bore-welding lathe work

  10. #29
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    What kind and size of wire are you using?

  11. #30
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    We line bore from 1in to 16ft. Automatic welding any position and material. Look us up CFS.com

  12. #31
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    Just ran across this, a subject near & dear to my heart for nigh on 20 years now. It is what I do to pay the mortgage. A little something I was working on today.
    20160303_untitled_0174.jpg 20160303_untitled_0181.jpg 20160303_untitled_0183.jpg 20160303_untitled_0185.jpg 20160303_untitled_0194.jpg

    Shop built coupler for a Cat 950E. Pretty well made part. It has to be in the recycling industry. Man those guys are hard on stuff.

    When I get back home I will post up some rock crusher stuff.

  13. #32
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    Here are a couple more from the same machine.

    20160302_untitled_0158.jpg 20160302_untitled_0163.jpg

    Tomorrow I will do the Z bar that mounts between those ears.

  14. #33
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    Can I make the BW1000 work with any welder, or do I need to buy a new welding machine? I have a Miller 252 and a Lincoln suitcase welder for on site.

  15. #34
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    We use a Miller 252 for ours.


    Sent from my iPhone using Tapatalk

  16. #35
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    Thanks for the pictures Warren. Those are awesome.


    Sent from my iPhone using Tapatalk

  17. #36
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    I would love to get into this stuff... It would be fund to meld me mechanic, welder, and machinist skills into one job. I just got done putting a 544 JD loader back together that they bent. The boss sent it out to be straightened and they did a so so job, needless to say it was a chore putting it back together.

  18. #37
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    Forklift mast 0710121147a.jpg0710121329.jpg0710121543.jpg0710121543b.jpg

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  20. #38
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    Another forklift but this time I'm working on the main frame also
    20190603_143452.jpg20190618_082933.jpg20190618_082911.jpg20190618_124800.jpg20190618_135525.jpg


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