Bait ball press - BAIT BALL PRESS Ø20 mm | Carp fishing | Print in place - BBP20

Press 20mm-diameter balls of groundbait from flours or moistened pellets.

🆔 DESIGN NO. : 569

⚙︎ Formats : STL

𐊵 Version : 1.2

⦸ No AI - No virus

✏︎ Designer : M@t - apiobi

🗓 Published on: 02/03/2026

💬 Exchanges : 0

3,90 €

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VAT 0% : VAT not applicable, Art. 293 B of the French General Tax Code
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Description

Press for making 20 mm diameter groundbait balls for carp and whitefish.
The design of this ball press has been studied:

to be 3D printable, even in PETG
to be solid
for withstand high pressure by the hands of impatient fishermen
for make balls!

I also use this tool to prepare vitamin-enriched foods, treats and recipes for taking care of my biggest koi carp and the biggest fish in my ponds.

It is printed in just 2 parts, each including a integrated ball pressure/ejection mechanism.
As a result, it can be 3D printed in “print in place”.

My models are designed for FDM 3D printing. They are designed for meet the specific needs of fishermen. They are designed, printed and tested several times under real fishing conditions until you achieve optimal results. What's shared works!

Technical Tips for 3D Printing

Numerous tests were carried out before obtaining this 3D printable model in PETG, without support, with the internal mechanism already captured in the part.
PETG recommended, ABS, ASA, PLA+.

There's no need to fill to 100%, but I recommend opting for a percentage that will support the inside of each piston, around 30% with a cubic fill for example.
Can be printed with a 0.6 mm nozzle (in my case)
At least 3 wall thicknesses

💡 Tip: once the part has been 3D printed, the mechanism may remain stuck. This is normal, don't panic 🙂
The solution is simple: use a cylindrical object with a flat edge slightly smaller than the moving part, and tap it with short, sharp strokes.
Even if you print in PETG, the part will regain its freedom... that's what tolerance is for!