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Tarp Corners with Drawstring or Bungee Cord — image 1
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Tarp Corners with Drawstring or Bungee Cord

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Make affordable, well-fitting and secure Tarpaulins or similar Covers, using even cheap DPM sheet. STL + FreeCAD source.

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Model information

License
GNU General Public License v3.0

Make affordable, well-fitting and secure Tarpaulins or similar Covers.

With these fittings, even cheap DPM sheet can be used.
[Damp Proof Membrane, as used in building foundations to prevent rising damp]

The twin-block design grips the membrane to spread any applied force, reducing the likelihood of tearing.

Unlike a traditional eyelet, they require no special tool, only a screwdriver to fit them.

Standard countersunk woodscrews used for fastening:
 - Corner piece    Ø 3 x 20 mm    (Ø 3 x 16 may suffice)
 - Straight piece  Ø 3 x 16 mm    (Ø 3 x 12 may suffice)

The cord holes are Ø 6mm. 

For outdoor use, ASA polymer and stainless screws are recommended. 

Printed using 1.6 mm walls and 30% infill, they feel easily strong enough.
Print orientations shown in photos. 

Important : When sizing the tarp, allow clearance enough for the inner blocks to pass over the rim of the container.

FreeCAD source model included.

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