Mailbox shutter "stop draft !" double seal valve
prusaprinters
<p>In our beautiful house the construction company failed to finish<br>all details including an open mailbox. So when windy we loose a lot<br>heat through this hole. I decided to make a 2 stage seal by means<br>of a hatch system. unfortunately the box opening was 340 mm so I had<br>to cut in 2. The joint are made with 2.5 mm x 55 mm nails (1/10 inch) head cut of.<br>Works fine, draft is gone.</p><p>Printed in PETG, 25% infill.</p><p>Please like, subscribe and return your comments.</p><p>Feel free to donate, thank you.</p>
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