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--- projects:glass_sphere:work_logs:work_log_6 [2019/02/24 05:26] – tjhowse
+++ projects:glass_sphere:work_logs:work_log_6 [2019/02/24 05:30] – tjhowse
@@ Line 31: / Line 31: @@
 {{:projects:glass_sphere:work_logs:pasted:20190224-052547.png}}
+I believe there are two problems:
+* There are veins of impurities running through the glass.
+** These will create a week point for a crack to start.
+* My tempering profile could be improved.
+** The current profile I'm using was created for tempering float glass. Container glass is slightly different, and so may require a different profile.
 === Video ===