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Bracelet of 12 links, in front a chain with a Y link and two ring links
  • Image 1: Bracelet of 12 links, in front a chain with a Y link and two ring links
  • Image 2: Zigzag of 8 links, two single links with pegs and dimples, one joint bent by 100°
  • Image 3: Link, Y link, fit test and the two ring links

Images: 3D preview of the design

No. 72 · Link chain with snap axles, with branch and ring, extendable at will – print files

ClickChain

  • Instant download (ZIP, 348 kB)
  • 6 files
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€2.90

Instant download · ZIP, 348 kB · No VAT charged pursuant to § 19 UStG

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A chain of individual links that snap into each other without pins or tools. Every joint swings more than 100° in both directions, so you can make a bracelet, ring, zigzag or a folded stack.

In the download

  • Glied.stl
  • Y_Glied.stl
  • Schlussglied_Ring_Zunge.stl
  • Schlussglied_Ring_Gabel.stl
  • Platte_16_Glieder.stl
  • Passprobe_2_Module.stl
Link
25 × 14 × 8 mm, pitch 17 mm
Swing angle
over ±100° (stop at about 110°)
Y link
38.5 × 40 × 8 mm, two forks at ±35°
Ring links
ring 22 mm outside, 13 mm inside
Bracelet
12 links give about 55 mm inside; every link more or less changes the circumference by 17 mm
Plate
16 links, 112 × 68 mm
Format
STL, 6 files

The model

A link measures 25 × 14 × 8 mm. At the front sits a tongue with two conical pegs, at the back a fork with two conical dimples. When plugging together, the two prongs of the fork spread by about 0.5 mm and snap over the pegs. This works from the front or from above; lead-in chamfers surround the eye.

The link ends are octagonal so they can be printed lying down without supports. The joint has 0.2 mm of air; the stop comes at about 110°. Under strong pull a joint snaps open again and is simply plugged back in.

For branching there is a Y link with one tongue and two forks (35° to each side), and as terminators two ring links with a 13 mm opening – one with a tongue, one with a fork. The pictures show a bracelet of 12 links (about 55 mm inside) and a chain of 7 links with a Y link and both ring links. One plate holds 16 links, the fit test 2.

View print notes (German)

Print notes included in German; part names are self-explanatory.

You will need

  • 3D printer with a print area of at least 115 × 70 mm (single link: 25 × 14 mm)
  • Filament in one or more colors

Printing

Orientation
flat, as in the files
Supports
none
Layer / nozzle
0.2 mm / 0.4 mm
Material
PETG recommended (the fork springs)
Colors
links alternating in two colors, turquoise and orange in the pictures; Y link and rings in white

Notes

  • If the first layer is squashed very wide, print the fit test and snap the pegs in and out once. Not suitable for children under 3 years (small parts that can be swallowed).
  • The files are for your private use – print them as often as you like. You may not pass on, upload or sell the files themselves.

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