{"product_id":"twin-arcs-rib","title":"Twin Arcs Rib","description":"\u003cp\u003e\u003cstrong\u003eMost pots swell once.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTwin Arcs gives you two. A smaller, shallower swell near the rim, a deeper one below it, and a sharp break where the two meet.\u003c\/p\u003e\n\u003cp\u003eThe break is what makes this rib worth having. Thrown by hand, two curves tend to blend into each other and the pot ends up looking like it has one wide bulge. This rib keeps them apart, so you get a clean line running right around the pot. It catches the light, and glaze pools and breaks along it.\u003c\/p\u003e\n\u003cp\u003eBoth curves are cut into the same edge, so they land in the same place on every pot. It's an outside profile, and two swells take more clay in the wall than one.\u003c\/p\u003e\n\u003ch2\u003eDefault Sizes:\u003c\/h2\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e▶ \u003c\/span\u003e\u003cstrong\u003eMicro\u003c\/strong\u003e\u003cspan\u003e – 45mm height\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e▶ \u003c\/span\u003e\u003cstrong\u003eSmall\u003c\/strong\u003e\u003cspan\u003e – 80mm height\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e▶ \u003c\/span\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e\u003cspan\u003e – 115mm height\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e▶ \u003c\/span\u003e\u003cstrong\u003eLarge\u003c\/strong\u003e\u003cspan\u003e – 150mm height\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e▶ \u003c\/span\u003e\u003cstrong\u003eExtra Large\u003c\/strong\u003e\u003cspan\u003e – 185mm height\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBacking width will vary depending on size. Use the Custom Rib Designer for adjusting heights in 5mm increments from 30mm to 200mm.\u003c\/p\u003e\n\u003ch2\u003eWhat It Throws\u003c\/h2\u003e\n\u003cp\u003e▶\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDouble-bellied vases\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– The classic use, and the one the profile was drawn for\u003cbr\u003e▶\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLidded jars and ginger jars\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– The upper arc gives the lid something to sit above\u003cbr\u003e▶\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStorage jars and urns\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– The break reads as a deliberate band around the body\u003cbr\u003e▶\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBottle forms with a collar\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Treat the upper arc as a swell below the neck rather than a second belly\u003cbr\u003e▶\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAnything you'll glaze in two\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– The break is a natural stopping line for a dipped or poured second glaze\u003c\/p\u003e\n\u003ch2\u003eNeed a Different Shape?\u003c\/h2\u003e\n\u003cp\u003eIf the arcs aren't quite where you want them: a deeper break, a fuller lower swell, the junction higher or lower up the wall, you can draw it yourself in our Custom Rib Designer and we'll print exactly what you draw.\u003c\/p\u003e\n\u003ch2\u003eA Note on Wear\u003c\/h2\u003e\n\u003cp\u003eThese are working tools, and working tools wear. Clay is abrasive (grogged bodies especially) so the working edge will slowly grind down with use. It's gradual, but it's worth keeping an eye on the tightest part of the profile: that's the first bit to soften, and it's usually the bit doing the work. Once it goes, that's the moment to replace the rib rather than fight it. Rinsing grit off after every session will buy you considerably longer. Replacing a preset shape takes seconds.\u003c\/p\u003e\n\u003ch2\u003eA Note on Performance\u003c\/h2\u003e\n\u003cp\u003eWe make countless variations of preset rib, and we haven't put every one of them to the test across every clay body and every form. There are simply too many, and potters work in ways we haven't thought of yet. Expect a rib to take a few pots to get the feel of: how the wall ends up depends on how firmly you push, how wet the clay is and how fast the wheel is turning. Give yourself some practice before you judge it.\u003c\/p\u003e\n\u003cp\u003eIf you end up with one that genuinely doesn't work for you, get in touch. We'll refund it, or give you store credit towards a different rib — whichever you'd rather. That goes for every preset rib we make. The only ones we can't take back are the ribs you draw yourself in the Custom Rib Designer, since those are made to your own design.\u003c\/p\u003e\n\u003ch2\u003eA Note on Our Photos\u003c\/h2\u003e\n\u003cp\u003eThe images in this listing are AI-generated rather than studio photographs. The rib itself is shown as a basic silhouette, an outline of the profile, not a picture of the finished tool. The pot alongside it is a visualisation of how a piece might look when thrown with that shape. The silhouette gives you the profile accurately at 115mm high, which is the height shown. If you choose a different height, the image won't change with it. Instead, look at the diagram on this page instead to see how your rib will actually look. The tool in your hand will also differ from the image in colour, surface finish and small details.\u003c\/p\u003e\n\u003ch2\u003eMain Features\u003c\/h2\u003e\n\u003cp\u003e☑️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4mm thick\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Enough body to stay rigid under pressure and sit solidly in the hand.\u003cbr\u003e☑️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e45° double-bevelled edge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Both faces chamfered to meet at a single point, contacting the wall on one clean line rather than a broad flat.\u003cbr\u003e☑️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIdentical bevels\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– No right or wrong face; use whichever side falls to hand.\u003cbr\u003e☑️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDoubles as a gauge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Hold it against a leather-hard pot to check the form before you trim.\u003cbr\u003e☑️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDesigned \u0026amp; made in the UK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Modelled and printed by us.\u003c\/p\u003e","brand":"Ceramind® Tools","offers":[{"title":"Micro","offer_id":53594696057098,"sku":"CMT-RB-TWARCS-MCR","price":5.99,"currency_code":"GBP","in_stock":true},{"title":"Small","offer_id":53594696089866,"sku":"CMT-RB-TWARCS-SML","price":7.99,"currency_code":"GBP","in_stock":true},{"title":"Medium","offer_id":53594696122634,"sku":"CMT-RB-TWARCS-MED","price":9.99,"currency_code":"GBP","in_stock":true},{"title":"Large","offer_id":53594696155402,"sku":"CMT-RB-TWARCS-LRG","price":11.99,"currency_code":"GBP","in_stock":true},{"title":"Extra Large","offer_id":53594696188170,"sku":"CMT-RB-TWARCS-XLR","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/5473\/0762\/files\/twin-arcs-rib-8100026.png?v=1788045314","url":"https:\/\/ceramindtools.com\/products\/twin-arcs-rib","provider":"Ceramind® Tools","version":"1.0","type":"link"}