Differences

This shows you the differences between two versions of the page.

--- projects:glass_sphere:work_logs:work_log_7 [2019/02/27 02:44] – created tjhowse
+++ projects:glass_sphere:work_logs:work_log_7 [2022/01/23 00:24] (current) – tjhowse
@@ Line 1: / Line 1: @@
 {{indexmenu_n>7}}
+[<6>]
 ====== What I want to accomplish ======
@@ Line 10: / Line 11: @@
 I strained off the water and soaked the glass again in distilled water. I dried it on a hotplate and measured 130g into four batwashed stainless steel cups. I fired them on a new profile. Step setpoint to 1000°C, wait an hour, step to 560°C, wait ten minutes.
-Insert screenshot of profile.
+{{:projects:glass_sphere:work_logs:pasted:20190319-105416.png}}
 The slugs came out with a smoother top than any previous attempt, with a clear concave meniscus.
-Photos.
+{{:projects:glass_sphere:work_logs:pasted:20190319-105442.png}}
-Shine light through slugs.
+I also put two slugs from the previous run into the furnace at 560°C for ten minutes to re-temper them. I ground the edges round and have begun to flatten the top and they haven't cracked yet, in contrast to the two slugs that were tempered at 510°C which cracked during grinding.
+{{:projects:glass_sphere:work_logs:pasted:20190319-105547.png}}
-Grind slugs flat.
+{{:projects:glass_sphere:work_logs:pasted:20190319-105559.png}}
-I also put two slugs from the previous run into the furnace at 560°C for ten minutes to re-temper them. I ground the edges round and have begun to flatten the top and they haven't cracked yet, in contrast to the two slugs that were tempered at 510°C which cracked during grinding.
+Roughing down the flat faces on the linisher went better with the correct tempering. Using a jig and a weight I was able to get the slugs to a lappable state much faster.
 === Video ===
-Pending
+{{youtube>L8Cs_J6q_Do?large}}
-{{youtube>PNHmRhPuz8g?large}}
 ====== What I want to accomplish next time ======
   * Hand grind the slugs smooth
+[<6>]