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Thread: Container Lid Cracking Spanner

  1. #1
    Supporting Member Canobi's Avatar
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    Container Lid Cracking Spanner

    Hi folks

    I've just finished the first week in my new position as Production Support Technician at work. Lots of tinkering and getting my hands dirty maintaining and fixing our machines, it's been great fun so far.

    However, one small niggle rose it's head quite early on and that is that some of the containers for the various fluids we use have had the lids screwed on too tight and my hands just aren't what they used to be in my younger days.

    There is only so many times that I can ask they guys at work to help, so instead, I spent some of my weekend fabricating a lid cracking spanner.

    I took one of the lids home to get dimensions from and just using a cool little slotted angle plate I picked up from ebay, whipped out the head of the spanner from a slice of 3" mild round stock.

    I first drilled and bored it to a slide fit on the lid body and then used the lid to roughly mark the positions of the protruding fins surround it.

    I then cleaned up the markings to be more accurate and carefully lined each one up prior to milling.


    The slots were milled to be wider than the fins to account for any human errors in the setup I was using, a dividing head would have been laborious and it's just a tool for work, not a prototype production item, so aesthetics come in second to functionality here.

    With all the milling complete, I turned the angle plate 90 and set up the spanner head for drilling a hole in its side for a handle using the rule and square method to get it centred vertically and eye balled it to centre horizontally.

    One end of my chosen handle had been turned down a little already, so I simply chose a matching drill for the diameter and drill it deep enough to accept the turned length.

    With the handle practically finished, all that was left was to clean up the other end, this time opting for a rounded one.

    To make it quicker, I used a chamfer tool to take the bulk of the meat off, then used my lathe file to bring it to shape and finished it with 240 grit and a lick of cutting oil.

    Once the handle was completed, I used my new MIG welder to place a tack on either side to securely hold it in place and as a garnish, I stamped my name on the side of the spanner head to have a go at using my letter stamp set for the first timeand it came out totally caddywampus as I had expected lol.

    Despite all the imperfections, the spanner is a great fit on the lids with no play, which is kinda cool considering I would have happily settled for all kinds of sloppy given how I went about making it, so I'm rather pleased with the results and I am genuinely relieved at how much easier it will make opening those damn containers at work.
    Attached Thumbnails Attached Thumbnails Container Lid Cracking Spanner-img_20210307_194440.jpg   Container Lid Cracking Spanner-img_20210307_194647.jpg   Container Lid Cracking Spanner-img_20210307_194746.jpg   Container Lid Cracking Spanner-img_20210307_194840.jpg   Container Lid Cracking Spanner-img_20210307_200637.jpg  

    Container Lid Cracking Spanner-img_20210307_200743.jpg   Container Lid Cracking Spanner-img_20210307_194933.jpg  

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  2. The Following 10 Users Say Thank You to Canobi For This Useful Post:

    57_210 (Apr 4, 2021), baja (Mar 15, 2021), DIYSwede (Mar 13, 2021), elk-a-holic (Mar 13, 2021), Jon (Mar 10, 2021), lassab999 (Mar 15, 2021), Paul Jones (Mar 9, 2021), rgsparber (Mar 13, 2021), toeless joe (Mar 9, 2021), Toolmaker51 (Mar 16, 2021)

  3. #2
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    Thanks Canobi! We've added your Container Lid Wrench to our Miscellaneous category,
    as well as to your builder page: Canobi's Homemade Tools. Your receipt:




  4. #3
    Supporting Member rgsparber's Avatar
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    Nicely done and a very satisfying tool. Are you now roaming the halls, looking for stuck lids?

    Rick
    Rick

  5. #4
    Supporting Member Canobi's Avatar
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    Not quite but I don't look at the chemical cupboard with anywhere near as much trepidation lol.

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    Supporting Member elk-a-holic's Avatar
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    Good write up. Informative and to the point. Beats a utube any day

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    Supporting Member Canobi's Avatar
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    Quote Originally Posted by elk-a-holic View Post
    Good write up. Informative and to the point. Beats a utube any day
    Thank you good sir, you are most kind 😊

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    Supporting Member Toolmaker51's Avatar
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    Quote Originally Posted by elk-a-holic View Post
    Good write up. Informative and to the point. Beats a utube any day
    Same thought occurred to me....often a neo-videographer with more recording equipment than tooling steals 40 minutes of our time for what should be
    "cut it off, drilled and bored, slotted it freehand, welded on handle".
    I save a LOT of links; bet not 10% are video.

    Here's a little trick to help hand stamping; stretch a couple lengths [for thickness] of masking tape as if to 'underline' your text. You'll feel the lower edge of letter reach that point. At each mark, put a small dot aligned with middle of stamp body, that aids spacing between successive figures.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  9. The Following 2 Users Say Thank You to Toolmaker51 For This Useful Post:

    Canobi (Mar 17, 2021), rgsparber (Mar 17, 2021)

  10. #8
    Supporting Member Canobi's Avatar
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    Quote Originally Posted by Toolmaker51 View Post
    Same thought occurred to me....often a neo-videographer with more recording equipment than tooling steals 40 minutes of our time for what should be
    "cut it off, drilled and bored, slotted it freehand, welded on handle".
    I save a LOT of links; bet not 10% are video.

    Here's a little trick to help hand stamping; stretch a couple lengths [for thickness] of masking tape as if to 'underline' your text. You'll feel the lower edge of letter reach that point. At each mark, put a small dot aligned with middle of stamp body, that aids spacing between successive figures.
    Thank you, both for your kind words and your most excellent tip regarding the letter punches, I will use this technique on my next one



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