{"product_id":"makers-cabinet-iris","title":"Maker’s Cabinet Iris [Brass Drawing Compass]","description":"\u003cp class=\"p1\"\u003e\u003cb\u003eThe drawing compass that replaces a mechanism unchanged since the 18th century\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eEvery standard drawing compass since the 18th century works the same way: a needle punctures the paper at the centre point, and an arm swings a pencil around it. The needle hole is the price of the circle. The Iris removes it entirely by borrowing the mechanism from a camera aperture — twenty stainless spring steel leaves that spiral inward as you rotate the outer brass ring, contracting the opening from 70mm down to 3mm with a single continuous turn. The circle size reads off a laser-etched scale on the body. No needle. No paper damage. No recalibrating a fixed arm.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThe Iris came from a Kickstarter campaign that hit its £25,000 goal in under 72 hours and closed at over £184,000 — a result that tells you something about how many people had been waiting for exactly this. Adam Savage featured it on Tested, and described watching the aperture mechanism open and close as one of those moments where a tool becomes something you want to understand before you use it. The body is machined from solid brass, 103mm in diameter, with a knurled grip around the circumference and corrosion-resistant stainless spring steel leaves inside. The walnut base grounds the Iris on a page as a \u003cmeta charset=\"utf-8\"\u003ecentring tool and doubles as a desk display stand — which matters, because this is genuinely an object worth leaving out.\u003c\/p\u003e","brand":"Maker's Cabinet","offers":[{"title":"Default Title","offer_id":53423704015176,"sku":null,"price":162.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/Maker_sCabinetIris.png?v=1782913419","url":"https:\/\/inkwellartsupplies.com\/products\/makers-cabinet-iris","provider":"Inkwell Art Supplies","version":"1.0","type":"link"}