Chain Catcher for Campagnolo Super Record Dumper

If you’ve ever had a chain drop off the inside of the small chainring, you know how annoying (and expensive) it can get—especially when the chain catcher itself breaks and needs replacing again and again - but you can't buy this part so easily because it's hard to find or expensive to get. A friend of mine had this happen multiple times on his Campagnolo Super Record front derailleur (10/11-speed) setup, so I designed a printable replacement chain catcher that you can make using strong materials and reprint for a few cents whenever needed.

Why this print is useful

• Saves money over time: replacements become basically just filament cost.
• Print it stronger by choosing the right engineering filament.
• Quick replacement because you can print it when you need it.
• Easy to reprint if it ever breaks (or if you want a spare ready to go).

Compatibility (please read)

Designed for Campagnolo Super Record front derailleur (10/11-speed) style setups where a chain catcher mounts at/near the front derailleur area.

Because frames, braze-on tabs/adapters, derailleur bodies, chainlines, and clearances vary, fit is not guaranteed on every bike. Please test-fit carefully before riding.

Recommended materials

For durability I do recommend any of the following:

• ASA — excellent heat resistance and toughness
• CF-PETG — very stiff and strong (when tuned well)
• PETG-HF — though enough but not sure how long it lasts

Print settings (strong starting point)

• Layer height: 0.16 mm
• Walls/perimeters: 5–6
• Top/Bottom: 5–6 layers
• Infill: 40–60% (gyroid/cubic recommended)
• Supports: only if needed (depends on orientation)

Orientation tip: Avoid printing in a way where a chain impact could peel layers apart. Choose an orientation that loads the part more through layers rather than between layers.

Feedback welcome (help me improve it)

I’d genuinely love to hear if this works well for everyone who prints it.

If you print it and find:

• clearance issues,
• mounting differences,
• or you’d like a slightly different “stop” geometry,

please leave a comment (bike + derailleur details help a lot). I’m happy to make enhancements if needed.

Safety + disclaimer

This is a functional drivetrain safety part. Inspect regularly, especially after chain drops or impacts. If you see cracks, delamination, or bending, replace immediately. Use at your own risk.

This is an independent 3D-printable design, not an official Campagnolo product, and I’m not affiliated with Campagnolo.