I think you might find these people cheaper on machanical parts http://www.useenco.com/ -----Original Message----- From: Sean H. Breheny To: PICLIST@MITVMA.MIT.EDU Date: Wednesday, May 01, 2002 8:13 AM Subject: Re: [OT]: Mechanical question >Thanks to all who responded. I think I will take the suggestion to find >some component that is meant to mount on the shaft (like a sprocket, which >I can get for about $6) and then bolt that to my plate. I just bought the >shaft and associated hardware from McMaster and they arrived yesterday back >at my home address. I am going there this weekend and I will take a look at >everything to make sure it is what I expected and make a more definite >judgement on how to proceed. > >Sean > >At 09:12 AM 5/1/02 +0100, you wrote: >> >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. >> >>You could always do this the reverse way by having a slot in both the >>aluminium plate, and the shaft, and fitting a key that protrudes from the >>shaft. This is known as a Woodruff key, and is commonly used on the flywheel >>of lawnmowers and similar small petrol engines. The key is made of a soft >>metal, so it will shear and protect things when the shaft is suddenly >>stopped. You should be able to get a suitable key at a lawnmower repair shop >>for pennies. >> >>-- >>http://www.piclist.com hint: To leave the PICList >>mailto:piclist-unsubscribe-request@mitvma.mit.edu > >-- >http://www.piclist.com hint: To leave the PICList >mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu