Differences

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--- projects:sand_drawing:work_logs:improvements [2020/05/11 11:41] – tjhowse
+++ projects:sand_drawing:work_logs:improvements [2020/05/11 12:00] – tjhowse
@@ Line 5: / Line 5: @@
 ====== What I've done ======
-I've made a few improvements since [[projects:sand_drawing:work_logs:cad|work log 2]].
+I've made a few improvements since [[projects:sand_drawing:work_logs:cad|Work Log: CAD]].
 === Optoswitch mounts ===
@@ Line 29: / Line 29: @@
 === Arm1 split ===
+{{:projects:sand_drawing:work_logs:pasted:20200511-114232.png}}
+Old.
+{{:projects:sand_drawing:work_logs:pasted:20200511-114721.png}}
+New.
-  * Rotated the pin hole that holds arm1 onto shaft1,
+I had noticed that arm1 could bend slightly about the joint because the joint was in shear. It could twist slightly because it was the compression from the bolts causing friction between the touching faces. The tension in the belt could overwhelm this fiction and the two faces would slide against eachother.
-  * Rotated the angle of the split that holds the two halves of arm1 together.
+The new arrangement puts the bolts into tension and there is no force acting to shear the joint.
 ====== What I want to accomplish next time ======
   * Assemble everything