Premium Coaster - Carbon Fiber

I wanted a coaster set that actually looked and felt like a high-end, machined product for my desk, rather than a typical 3D print.

This is a heavy, monolithic coaster display stand with four matching coasters. The whole system is designed to be printed in PETG-CF for that matte, speckled finish, and it utilizes custom 85A TPU "mushroom plugs" for the feet. The TPU feet are a friction-fit—just push them into the recessed holes on the bottom of the coasters and the stand. No glue required, and they give the coasters a premium "shadow gap" while protecting your desk.

The Secret Sauce (Print Settings): The included print profile is highly tuned to hide layer lines and create a flawless, molded look. If you are slicing this yourself, here is exactly how I dialed it in:

• The Bottom Layer (The CF Texture): To get that holographic weave effect on the top of the coasters (which print upside down), you need a textured PEI plate. I rotated the bottom surface pattern so the lines perfectly align with the plate's texture. I also went with thick initial lines and a slow 40 mm/s initial layer speed to perfectly press the CF material into the plate's crevices.
• The Top Surface (No Ironing!): Ironing usually ruins the matte look of carbon fiber filaments, making them look smeared. Instead, I skipped ironing entirely. The trick is to use 6 top shell layers, bump the Top Surface Flow Ratio up to 1.06, and drop the Top Surface speed to a painfully slow 10 mm/s. It takes a little longer, but the plastic pools perfectly and creates an incredibly smooth, solid top finish.
• The Structure: I used 3 Wall Loops and 30% Cubic infill. This gives the set a really satisfying, heavy weight in the hand without risking the warping that comes from printing 100% solid blocks of PETG.

Assembly:

1. Print the PETG-CF plate (Coasters + Stand). ZERO supports needed.
2. Print the TPU plate (16 little feet).
3. Press the feet into the 6mm holes on the bottom of the coasters and the four corners of the stand.

Enjoy the desk upgrade!