Marking Tool for Drainage Pipes

This model is designed for anyone who struggles to cut a drainage pipe so precisely that they return to the starting point after a 360-degree rotation. This marker makes it easier to draw a precise and clean cutting path on the pipe.   The marking tool consists of two parts. The ring features an opening through which the second part, the pen slider, can be inserted. From that point, the pen slider is guided precisely within the ring through an integrated track. The pen slider has a 4 mm hole designed to hold a marker. Additionally, the outer ring is equipped with flexible tabs that securely hold the tool in position.  PETG is recommended as the material for the outer ring, while PLA is ideal for printing the pen slider.   Currently, two outer rings are available, suitable for pipes with a diameter of 110 mm and 125 mm.  If you need rings for other pipe diameters, feel free to mention it in the comments – I will design them for you!