A round work area works best with a polar coordinate system. This product is half-assembled kit, you need to complete assembly. These charges are on recipient's responsibility.Please contact me first to resolve any potential issues before leaving feedback. 1 x Polar plotter Kit. This version compatible with Windows OS. The item "CNC-Maschine Polar Pen Drawing Machine Plotter DIY Kit Arduino Kunst from EU" is in sale since Monday, July 19, 2021. This item is in the category "Business & Industrie\Sonstige Branchen & Produkte\Graveurausstattung". The seller is "charmingandperfect" and is located in Ljubljana. This item can be shipped worldwide.