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Paws & Parts Print-in-Place Chain Generator

Support-free print-in-place chains, from tiny jewelry links to heavy chunky ones

Paws & Parts Print-in-Place Chain Generator is a free browser tool for custom print-in-place chains, from fine jewelry links to chunky ones. Free; no account, payment or paid tier seen. Exports 3MF and STEP. Last checked 26 September 2026.

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At a glance

Price: Free; no account, payment or paid tier seen
Runs on: Browser
Exports: 3MF, STEP
Multicolor: No, single color
Account: Not needed
Open source: No
Skill level: Easy: a few settings to tune
Best for: Custom print-in-place chains, from fine jewelry links to chunky ones
How we checked: Opened the generator Chain form loads without an account: 4 presets, line or spiral layout, 4 link outlines, 5 cross-sections, mouse-ear brims, a printability check and 3MF or STEP export
Last checked: 26 September 2026

Open generator

Sources: Paws & Parts app (chain generator), Author's Printables page for the chain generator (tips, test printer), Chain design source on GitHub (parameters and checks) (checked 26 September 2026)

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About this generator

Paws & Parts Print-in-Place Chain Generator is a free browser tool that builds chains whose links print already joined and need no supports. As of September 2026 it was the only design in Paws & Parts, a small hobby app by the maker Jas (jsmnbom), which runs on your own computer. The first visit downloads about 41 MB to set up the CAD engine, then each change rebuilds the 3D preview.

You start from one of four presets: Default, Smol (jewelry scale with mouse-ear brims), Pretty or Large. Then you set the number of links (the slider goes to 200 and you can type up to 500) and pick a straight line or a flat spiral that fits a long chain on one plate. You can also change the link outline, the cross-section from four to twelve sides, and the link length, width and thickness. A printability panel checks bed contact, the gap between links and how far they lean. Copy link keeps your settings in the web address, and you export a 3MF or STEP file.

It needs no account. It is also new, and the author has mostly test-printed it in ABS on a Voron, so print a short chain first. It suits anyone who wants a decorative or sturdy chain in their own size without modeling one.

What you can make

Print-in-place link chains
Jewelry-scale fine chains
Heavy chunky chains
Long chains coiled in a flat spiral

How to use Paws & Parts Print-in-Place Chain Generator

Open Paws & Parts, wait for the one-time engine download and pick Print-in-place chain
Pick a preset: Default, Smol, Pretty or Large
Set the link count and choose a line or spiral layout
Adjust link shape, cross-section and size, and add mouse-ear brims for small links
Check the printability panel, export the 3MF and slice it

What you'll need to print it

Filament and parts that suit what you make with Paws & Parts Print-in-Place Chain Generator.

0.2 mm nozzle

PETG

M3 heat-set inserts

Also handy

Digital calipers

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Paws & Parts Print-in-Place Chain Generator pros

Four presets give a working chain in one click, from jewelry size to heavy links
Spiral layout fits long chains on one plate, and Copy link saves your settings in the URL
Built-in check warns about weak bed contact, touching links and too much lean before you export

Paws & Parts Print-in-Place Chain Generator cons

First load downloads about 41 MB and compiles the CAD engine, which takes a while
Exports 3MF or STEP only, no STL
New, with few community prints as of September 2026, and it depends on well-tuned bridging