[hackpgh-discuss] Re: Bearings and axle for mirror galvos

  • From: Jeff Kramer <jeffkramr@xxxxxxxxx>
  • To: "hackpgh-discuss@xxxxxxxxxxxxx" <hackpgh-discuss@xxxxxxxxxxxxx>
  • Date: Thu, 6 Jan 2011 12:11:53 -0500

Any RC shop worth its salt would have these in stock. 

I'm not sure where to find one though. 

Jeff

Sent from my iPad

On Jan 6, 2011, at 11:26 AM, Matt Stultz <matt@xxxxxxxxxxxxxxxxxx> wrote:

> A common source for cheap bearings is skate bearings for either rollerblades 
> or skateboards. You can often find these on the cheap at walmart or sporting 
> goods stores. I hope that might help.
> 
> Thanks,
> Matt
> 
> On Thu, Jan 6, 2011 at 11:13 AM, Ed Paradis <legomaniac@xxxxxxxxx> wrote:
> I'm working up a parts list of stuff I need to build some galvos this
> weekend, and it looks like I need some bearings and axles for the
> galvos themselves.
> 
> Does anyone have some in their treasure pile?  I need 2 bearings per
> galvo and one axle per galvo.  I'm imagining a bearing with about 4mm
> ID and 8mm OD, and an axle with a matching OD to fit the bearing (ie:
> 4mm).
> 
> I had some, but they've seemed to have been lost in the move. I don't
> mind buying some, if anyone knows where to pick some up in town.  I
> would suspect an RC hobby shop would have something.
> 
> On the other hand, if someone has a good idea for alternatives, I'm
> all ears.  I've thought about tearing up some cheapo hobby motors for
> their bearings (sleeve bearings would be fine).  Otherwise I'm going
> to have to do some sort of Home Depot raid, which for stuff like this
> is usually fairly pointless.
> 
> I think I'll also need some aluminum rod (OD about 10mm) for making
> the motor mounts on the lathe.  Or I could use JB weld ;)
> 
> You're asking "But Ed, what parts do you actually have?".  I've got
> material to make the casing/supports, mirrors, magnets and wire
> suitable for coils.
> 
> If I can't get the bearings and axles, I'll probably go with a
> temporary 'paper and glue' design I've been thinking about.
> 
> Ed
> 
> 

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