I'm wtih Peter Peres on this one - pipe flanges work just about like I described. --Lawrence ----- Original Message ----- From: "Sean H. Breheny" To: Sent: Tuesday, April 30, 2002 1:19 PM Subject: Re: [OT]: Mechanical question > Hi Lawrence, > > Thanks for the quick response. The problem with #1 is that I don't really > have the right tools to do this kind of stuff so I am limited in how thick > a plate I can really drill and work. The problem with #2 is that I don't > have a torque wrench (but I guess they are not that expensive so I should > probably buy one anyway) and also the drive shaft has no "head" on it that > can be grabbed by a wrench. > > #3 is interesting and I thought about that, but I had some trouble finding > collars with holes in them that could accept bolts. I am using > McMaster-Carr as my supplier. Can you point me to such beasts? > > Sean > > At 01:12 PM 4/30/02 -0500, Lawrence Lile wrote: > >Two recomendations: > > > >1. Build it a lot bigger than you think it will ever need to be. Then > >don't worry about torque. > > > >2. Build a small simulated aluminum plate with a tab, and torque it with a > >torque wrench until it breaks. > > > >3. (Bonus) Forget the aluminum tab, unless your plate is very thick this > >seems like a weak spot. Use some steel collars with real keyways, use steel > >keyway inserts, and bolt through the steel collars to trap your aluiminum > >plate. Then don't worry about the torque, it'll be big. > > > >--Lawrence > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body