Centre line finder for square or round objects

2025-05-14 - Added a much larger version that uses A1 Mini bed to the full extent. Good for finding centre on much larger objects. The other day I printed a centre line finder model and decided this is not what I need. This model has 10mm high and 2 mm thick edges on two sides that improve positioning it along the edges of the object / square board / dowel / table leg / bowl, etc. The marking line is 2mm wide and should allow almost any pencil or pen. It could be printed either in PLA or PETG, both should be enough for your needs. On the photos you see it printed in PETG-HF which helps with flexibility of the tool if ever needed. In North America this tool might help with finding the centre line on wooden posts up to 4x4".