[hackpgh-discuss] Re: Bearings and axle for mirror galvos
- From: Matt Stultz <matt@xxxxxxxxxxxxxxxxxx>
- To: hackpgh-discuss@xxxxxxxxxxxxx
- Date: Thu, 6 Jan 2011 11:26:23 -0500
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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