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Thread: Machinist Level Access Cover Removal

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    Supporting Member Paul Jones's Avatar
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    Machinist Level Access Cover Removal

    Calibration adjustments to my machinist level can be made after removing a round-sided access cover. The original access cover was very difficult to remove. I modified the original access cover and made a tool making it much easier to remove the cover. The cover already had a small groove around its perimeter that I enlarged to fit a standard 3/32 thick No. 115 O-ring. This provided a snug fit but yet easy to remove. I created a screw-on handle that fits into an existing brass thread insert installed on the face of the original cover. The threaded-end handle also served as a mandrel for holding the cover while machining the larger O-ring groove. The handle was made from 0.250 2011-T3 aluminum rod and a clamp-type knurling tool produced the knurls. The clamp-type knurling tool is a better choice than the traditional plunge knurling tool when working with small diameter aluminum rod.
    Attached Thumbnails Attached Thumbnails Machinist Level Access Cover Removal-tool-removing-access-cover-machinist-level.jpg   Machinist Level Access Cover Removal-machinist-level-access-cover-removal-tool.jpg   Machinist Level Access Cover Removal-modified-access-cover-machinist-level.jpg   Machinist Level Access Cover Removal-before-enlarging-groove-fit-o-ring-.jpg  

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  2. The Following User Says Thank You to Paul Jones For This Useful Post:

    kbalch (Apr 27, 2015)

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    kbalch's Avatar
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    Thanks Paul! I've added your Machinist Level Access Cover Removal Tool to our Machining category, as well as to your builder page: Paul Jones' Homemade Tools. Your receipt:


  4. #3
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    Great work on that cover! Had me smiling as I read your post.

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    Supporting Member Catfish's Avatar
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    Another nice tool Paul. Randy

  6. #5
    Supporting Member Paul Jones's Avatar
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    Thanks Randy. This may sound funny but the first time a tried removing the access cover I really thought it had a retaining spring connected from the inside. It kept snapping back into place each time I tried pulling it off. It finally came off but I decided to fix the problem so I didn't have to deal with the hassle again.



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