http://glass-ir-heat.com/en/tags/diy/ Recent content in DIY on Glass Infrared Heating Systems Hugo en-us Sat, 18 Jul 2026 05:01:21 +0800 http://glass-ir-heat.com/en/posts/diy-glass-bottle-cutter-heater/ Sat, 18 Jul 2026 05:01:21 +0800 http://glass-ir-heat.com/en/posts/diy-glass-bottle-cutter-heater/ <p><img src="http://glass-ir-heat.com/images/2bad5999f7b19d5c4829fec6cfc866a1.png" alt="DIY glass bottle cutter heater"></p> <h1 id="dealing-with-cold-spots-in-custom-glassware">Dealing with Cold Spots in Custom Glassware</h1> <p>If you’ve ever worked with custom glass shapes or bottle cutters, you know the headache. You pull a piece out of the kiln, thinking it&rsquo;s fine, and then—<em>snap</em>. It happens because complex shapes, like a narrow neck or a wide, flared base, are a nightmare for heat. In a standard kiln, you get these &ldquo;cold spots.&rdquo; The glass just doesn&rsquo;t soak up the heat evenly, leaving internal stress that eventually kills the piece. It&rsquo;s frustrating.</p>