RCU Forums - View Single Post - Glue joint resistance comparative test.
View Single Post
Old 08-30-2014 | 10:28 AM
  #3  
olnico's Avatar
olnico
 
Joined: May 2007
Posts: 4,120
Likes: 0
Received 16 Likes on 10 Posts
From: Houston, Texas.
Default

Here is the first test conducted with 5 min Z-poxy.

The hard wood surface is traced with the bracket shape and cleaned.



A diamond point rotary tool is used to imprint the wood.



10 dots are made in the wood with this tool:



The PYCABS servo bracket is saturated with glue:



The hard wood beam is saturated with glue as well:



The servo bracket is maintained in position for 16 hours with a pump clamp:



The servo bracket is then progressively loaded. 5 kgs:



10 kgs:



15 kgs:



20 kgs:



25 kgs ( sorry, the 5 kgs weight is on the other side of the load ):



The glue bond sheared at 25 kgs, a few seconds after I took the picture:



The glue took partly some wood away, and some glue sheared off the bracket: