Making a Removable Sternum Strap

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So you've got a backpack with a "permanent" sternum strap?
In this instructable I'll show you how to make it removable

Step 1: What Will You Need

For this instructable you will need the following:
  • A backpack (of course)
  • A dremel or file
  • Some sand paper

Step 2: Cutting

Use a thin cutting disk and cut carefully until you almost reach the strap.
Repeat for the other side.

Note
You can use an image of a Split Sternum Bar for reference

Step 3: Remove and Widen Gap

Now gently remove the sternum bar (it's still a bit hard to do that, but soon it'll be easier).
After both bars are out, use a thicker cutting disk to widen the gap.
I used a different kind of split bar for reference as seen in the pictures.

Step 4: Sanding

Sand the imperfections and round the sharp edges a bit.

Step 5: Final Result

That's it! You're ready to go!


You can use this new feature to convert from using your backpack for hiking to going to school, office, etc.

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    12 Discussions

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    vref_guy

    4 years ago on Introduction

    Fantastic idea! I've seen this design on sternum straps and I've never thought to modify the ones I own even though they bother me on occasion. Thanks for creating this instructable.

    1 reply
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    omni96gare8421

    Reply 5 years ago on Introduction

    It seems there's no effect on all on stiffness, comparing to it before it was cut. I think the bar's slider piece (one in the middle) is taking most of the load, and since it wasn't cut, there is no change.

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    omni96astral_mage

    Reply 5 years ago on Step 5

    That won't be a good idea, since the shorter stubs are stiffer and provide more stability in relation to their size.