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
<<mailto:legomaniac@xxxxxxxxx>legomaniac@xxxxxxxxx
<mailto: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
