Bidirectional letter opener( revised)

prusaprinters

<p>&nbsp;</p><p>A bidirectional letter opener that fits comfortably in your desk drawer and in your hand like a dice. Use the blade of a utility knife. You don't need to consider the direction of sliding envelope.</p><p><br>I recommend to use the &nbsp;blade of a utility knife</p><p>TI-CRS10 by 3M</p><p>Firstly, insert utility knife blade into the narrow slit.</p><p>And confirm the tip of the blade stick into the bottom of the wider slit.</p><p>Please refer the video how to install blades and use it.</p><figure class="media"><oembed url="https://youtu.be/-ezbx_-ZPbw"></oembed></figure><p>&nbsp;</p><p>I revised the design to fix the blade fitting into the correct position. And made the distance of the blades smaller than old version to avoid leaving dust after cutting an envelop.&nbsp;</p><p>&nbsp;</p><p>Changing the distance of blades;</p><p>old version</p><figure class="image image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/97722/rich_content/d1762af1-8238-4ccd-b79c-bea9968b6dda/3-1.jpg#%7B%22uuid%22%3A%22f763b365-21ec-48b3-bb94-beb2f8a6e2b1%22%2C%22w%22%3A513%2C%22h%22%3A484%7D"></figure><p>&nbsp;</p><p>new version</p><figure class="image image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/97722/rich_content/81614c16-1a95-4732-a6ed-528f12e07d0f/3-111.jpg#%7B%22uuid%22%3A%22353ee818-ff79-4375-a5ad-b9678e4628d6%22%2C%22w%22%3A531%2C%22h%22%3A499%7D"></figure><p>&nbsp;</p><p>Change the position of blades to widen the cut of narrow slit.</p><p>old version</p><figure class="image image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/97722/rich_content/c7415eab-4e59-4a00-af2c-d90d15aea995/3-1.jpg#%7B%22uuid%22%3A%2269659005-4572-4907-89d1-02a0145fb28f%22%2C%22w%22%3A510%2C%22h%22%3A462%7D"></figure><p>&nbsp;</p><p>new version</p><figure class="image image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/97722/rich_content/b159545c-d264-4c25-917a-3606249494eb/3-111.jpg#%7B%22uuid%22%3A%224f5bef6c-e1ba-4b84-b531-f87c4df6d8f7%22%2C%22w%22%3A343%2C%22h%22%3A309%7D"></figure><p>I hope you'll enjoy printing.</p>