Re: Need ideas for a flywheel-like part

"gwlucas" <gwlucas@xxxxxxxxxxxx> wrote:
Actually, I like your idea a lot because it allows me to change the
moment of inertia without changing the mass of the flywheel-like
device. Following your lead, I did a quick search on set-screw and
collar. What I saw looks like thin rings (inner diameter 6mm, outter
1/2 inch) with not much material for drilling. Is there a good way to
attach them to
a crossbar? (probably not crazy glue, I would think). Are there more
substantial parts out there that I'm not finding? I suspect that my
problem here is just not knowing the right things to look for.

Gary

Something like this might work for you:

http://www.robotshop.ca/home/products/robot-parts/mechanics/mounts-hubs/lynxmotion-hub-02-universal-hub.html

It's a universal hub for attaching a wheel to a 6mm shaft.

You can attach a bar to that (or different sized disks). All you would
need is either a part with holes in it (erector set parts for example), or
a simple hand drill to drill holes in it (if you don't own a battery
powered hand drill/driver it's a good investment - probably my signal most
used power tool in my shop).

You could also consider buying different robot wheels designed to attach to
a 6mm shaft. You wouldn't be able to calculate the moment of inertia
easily but I suspect if you know enough physics, you could find a way to
determine it experimentally (attach to a free spinning shaft and apply a
known torque to it and measure the angular acceleration).

--
Curt Welch http://CurtWelch.Com/
curt@xxxxxxxx http://NewsReader.Com/
.

Relevant Pages

  • Re: Need ideas for a flywheel-like part
    ... It's a universal hub for attaching a wheel to a 6mm shaft. ... You can attach a bar to that. ... a simple hand drill to drill holes in it (if you don't own a battery ...
    (comp.robotics.misc)
  • Need help with stepper motor & safe idea
    ... Then mount this on the door ... How does one normally attach something to the shaft of a stepper -- can I ...
    (sci.electronics.components)
  • Re: Never finishes moult
    ... I mean the needle like feathers that attach to the shaft. ... When I saw that, plucking seemed a possibility. ... So, I went and bought ...
    (rec.pets.birds)
  • Re: Ideas wanted for Go-kart
    ... I was day dreaming today about using a vertical shaft motor. ... wouldnt it be possible to attach a universal joint, ...
    (sci.electronics.repair)
  • Re: How to drill dog holes
    ... on of those jigs that you attach to your hand drill for that very ... purpose. ...
    (rec.woodworking)
Loading