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Models shared by the SO3D.xyz community. Open any of them in the generator to see exactly how it was built, remix it, or print it as-is. Browse the model library by category
MAIN PURPOSE: Keep a desk drink warm and covered
Drop the lid on your mug at the desk: the tea stays hot, nothing falls in, and a knocked mug spills a lot less near the keyboard. The slot leaves room for a tea bag string or a spoon. Fits mugs up to 88 mm across.
Printing notes
17.3 cm³
Volume
21.5 g
Est. weight
1,340
Triangles
Food-safe PETG. Prints as shown on its floor, no supports.
MAIN PURPOSE: Hold rolled drawings flat on the desk
Fill each triangle with 100 g of coins or steel shot, glue the lid and set one on each corner of a rolled drawing, map or poster: the right angle sits snugly on the corner and the sheet stays flat for reading or tracing.
Printing notes
36.3 cm³
Volume
45.0 g
Est. weight
1,016
Triangles
Print four; glue felt underneath. Prints as shown on its outline, no supports. The lid prints as a separate part, top down.
MAIN PURPOSE: Scan documents square with a phone
Lay the phone on the arm with its camera past the end: the lens sits 245 mm above the desk, square to the paper, so an A4 page fills the frame for a sharp, undistorted scan. Weigh the foot down with a book.
Printing notes
142.9 cm³
Volume
177.2 g
Est. weight
1,156
Triangles
Print on its side as it comes; needs a 256 mm bed.
MAIN PURPOSE: Re-stamp an image in exactly the same spot
Butt the square against the corner of the card, press the clear stamp block into its inside corner and stamp: if the print is patchy, put the block back in the same corner and stamp again in exactly the same place.
Printing notes
13.1 cm³
Volume
16.3 g
Est. weight
68
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Check whether post goes as a large letter
Push the envelope through the tunnel: if it slides through, it is under 250 mm wide and 25 mm thick and goes at the large letter rate; if it sticks, it is a parcel. Saves a trip to the post office counter.
Printing notes
56.7 cm³
Volume
70.3 g
Est. weight
5,516
Triangles
Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Draw large circles without a beam compass
Pin the end hole to the paper with a drawing pin, put a pencil tip in the hole for 30 to 180 mm radius and swing: big circles for diagrams, posters and signs that an ordinary compass cannot reach.
Printing notes
10.6 cm³
Volume
13.1 g
Est. weight
19,044
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Weigh letters without an electronic scale
Hang the scale on a drawing pin through the top hole, clip a letter to the arm with a bulldog clip and read the swing against a plumb thread: up to 100 g, enough for every letter rate. Calibrate the marks once with coins (a 1p weighs 3.56 g).
Printing notes
25.2 cm³
Volume
31.2 g
Est. weight
5,204
Triangles
Print at 100 % infill so the bob has weight. Prints flat as a plate, no supports.
MAIN PURPOSE: Fold A4 letters into even thirds
Lay an A4 letter face down with its top edge against the lip, fold the bottom up over the board edge, turn it over and fold the top down: the board is exactly 99 mm deep, so the thirds come out even and the letter drops cleanly into a DL envelope.
Printing notes
45.8 cm³
Volume
56.8 g
Est. weight
3,316
Triangles
Print floor-down as shown, then turn it over to use it.
MAIN PURPOSE: Keep a pen attached to a notebook
Slide the slot onto the edge of a hardcover notebook and snap your pen into the ring: the pen travels with the notebook, clipped along its edge, instead of rolling around the bottom of the bag. Fits 3 to 3.5 mm covers and 9 to 11 mm pens.
Printing notes
4.8 cm³
Volume
5.9 g
Est. weight
1,620
Triangles
Print in PETG. Prints as shown on its outline, no supports.
MAIN PURPOSE: Score A-size cards to fold exactly in half
Push the sheet against the corner stops and run a bone folder down the groove for your size: the four grooves sit at exactly half of A7 to A4, so every card, invitation and booklet folds dead centre, with a crisp crease.
Printing notes
88.9 cm³
Volume
110.3 g
Est. weight
9,660
Triangles
Prints as shown on its floor, no supports.