Straw Dust Cover & Flexible Tether

If You like the design check my collection for straw cover 
https://cults3d.com/en/bundles/straw-topper-tumbler-straw-protector-bundle-2
 
Full Access Commercial License Certificate : https://cults3d.com/en/3d-model/various/lifetime-full-access-commercial-license-certificate-3d-printing-laser-cut-me

Single Product Commercial License : https://cults3d.com/en/3d-model/various/single-product-commercial-license-certificate

Recommended TPU Print Settings

• Material: TPU 95A (Thermoplastic Polyurethane)

• Layer Height: 0.16 mm – 0.20 mm

• Wall Loops: 3 – 4 perimeter walls

• Infill: 100% Solid

• Print Speed: 25 – 35 mm/s (slow speed prevents filament buckling)

• Nozzle Temperature: 225°C – 235°C

• Bed Temperature: 40°C – 50°C

• Supports: Disabled (None required)

• Cooling Fan: 60% – 80%
  

Printing & Post-Processing Tips

• Build Plate Orientation: Lay the bottom flat faces of both the cap and retention collar directly on the print bed. The flexible U-bend tether will bridge smoothly in mid-air without needing support material.

• If you have smaller straw just scale the design (*0.9 = 9mm, *1.1= 11mm)

• Dry Your TPU: Flexible filaments absorb moisture quickly. Dry your spool at 60°C for 4 to 6 hours before printing to eliminate stringing, surface blobs, and weak layer bonds.

• Bed Release Agent: Apply a thin layer of glue stick or painter's tape on smooth PEI beds to avoid over-adhesion and damage when removing the finished print.

• Fit Check: Verify your straw's outer diameter (standard is 10 mm). If the cap feels too loose or tight due to filament shrinkage, adjust your slicer's X/Y Hole Compensation by $\pm 0.1 \text{ mm}$.

• Hygiene & Safety: Clean the printed cover thoroughly with warm, soapy water before first use. For long-term use, use food-contact compliant TPU or seal the internal cap surface with a food-grade epoxy.

License Agreement: Personal & Non-Commercial Use

By downloading, copying, or utilizing these 3D digital CAD files, you agree to the following non-commercial terms:

• Permitted Uses: You are granted a personal, non-exclusive, non-transferable license to download, 3D print, and use the final physical models exclusively for private personal use.

• Restrictions:

  • No Selling of Digital Files: You may not sell, sub-license, rent, re-host, share, or distribute the 3D digital files (STL, 3MF, STEP, CAD) or any derivative modifications on any platform or medium.

  • No Selling of Physical Prints: You may not manufacture, market, distribute, or sell physical 3D-printed versions of this design for commercial gain.

  • No Commercial Derivatives: You may not create remixes or modified versions of the file for commercial distribution.

• Attribution: Any photos, videos, or social media posts featuring prints of this design must include attribution to Crypuim Design Lab and a link back to the original model listing.

For commercial use license feel free to contact me.