View Single Post
  #24   Spotlight this post!  
Unread 10-01-2005, 18:53
greencactus3 greencactus3 is offline
occra 23.
AKA: ryo
None #1481
Team Role: Alumni
 
Join Date: Feb 2004
Rookie Year: 2006
Location: North Farmington, MI
Posts: 1,523
greencactus3 is a name known to allgreencactus3 is a name known to allgreencactus3 is a name known to allgreencactus3 is a name known to allgreencactus3 is a name known to allgreencactus3 is a name known to all
Send a message via AIM to greencactus3 Send a message via MSN to greencactus3
Re: Tetra Manipulators

Quote:
Originally Posted by leo_singer
Exactly how tight is that? Maybe it might be easier to handle a tetra if you grab it from a vertex, or from two edges.

But I do like the idea of taking advantage of the tetrahedron's rotational symmetry.
well thats where you have to fing the best gripping material against the pvc. spongy rubber most likely, im thinking maybe bicycle brakes. but we dont really want to take forever in aiming it correctly either. or crack a pipe.
Quote:
I'm not sure I would count on that keeping them from rotating. Regardless of them being glued together and having loctite on the bolts, each leg is an axis that is held by a single bolt at each end along that axis. What keeps the bolt and leg from spinning in the hole in the end connector? I wouldn't rely on friction, and any loctite in that hole won't cut the kind of moment induced from swinging a 9 pound tetra.
you're right. so maybe once someone builds a tetra correctly and rightly abuses it, see what happens. but we still hafta think about the IFs. sooooo.... what now