View Single Post
  #1   Spotlight this post!  
Unread 27-06-2009, 00:34
NorviewsVeteran's Avatar
NorviewsVeteran NorviewsVeteran is offline
Precision Driver Extraordinaire
AKA: Richard Raitt
FRC #1793 (Pilots)
Team Role: Alumni
 
Join Date: Oct 2008
Rookie Year: 2006
Location: Norfolk VA
Posts: 569
NorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond reputeNorviewsVeteran has a reputation beyond repute
Trebuchet (Joining Lumber)

Hello fellow off-season CDer's,

I'm building a trebuchet in my basement, and I want to make the swing arm out of 4x4 and 2x4, but I'm not sure how to join the two together end-to-end.

Some ideas have been tossed around, all including large bolts, some including large steel C-channel, but none of us (my brother, dad, or myself) have any real clue how to do it.

Any help would be greatly appreciated, images could validate hugs. No promises.

The attached image is what I came up with in SketchUp, feedback would be nice. The lines flanking the 2x4 are shims to keep it centered.
Attached Thumbnails
Click image for larger version

Name:	trebuchet arm coupler.png
Views:	357
Size:	26.7 KB
ID:	8017  
__________________
______
I was in Scouts but I wanted out by the third meeting. I was in TSA, but I quit after a couple of weeks. I don't go camping with the SCA anymore. I was in taekwondo but I had to leave because I got sick.
I joined FIRST and stuck with it. It was nice enough to return the favor.

Reply With Quote