Large compass using a sail batten

(NOTE: same model but designed to use a wood stick ¾ inch is also available on my profile) Re-use an old sail batten as a compass for large diameters for sewing and other jobs.One part holds the chalk pencil and the other one holds the tip.The tip can be an old sewing machine needle or a nail or whatever that fits.The part is designed to receive the chalk pencil on the picture but can fit other pencils.What you need to complete the hole thing:- chalk pencil- sewing machine needle or nail (or else) for the tip of the compass- 2 screws M5 about 10-15 mm or more (screw it through the little 5mm hole, it will make its own thread itself)- sail batten 3mm x 15 mm I designed a wall mounted support to store it, you can find it here: https://makerworld.com/en/models/2085330-wall-mount-holder-for-large-compass#profileId-2253775