Re: [CAD_CAM_EDM_DRO] Re: Shopbot, Rack and Pinion, Ball Screw, Acme precision screw?

On Sat, 26 Apr 2003 17:25:16 -0000, you wrote:

>Check out the oriental motors site that I listed in my last post.
>They have the specs on all of their gearheads. I think the backlash
>on the one that I listed (shopbots) is .005 +-

I checked out the site, the japanese language version does not seem to
have gearheads alone, and the 2 phase steppers are not the kind that I
am using. My Japanese language skills are rather poor, so there's
lots of Kanji I don't know.

The English language version seems to dead end in some splash pages
that give no links to catalog pages.

Is this the site you were talking about?

Where was the gear head information?

Harvey

>
>That's probably close enough for router work isn't it? I never was
>good at decimal to inch conversion.
>
>
>
>
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "km6vv" <KM6VV@a...> wrote:
>> Hi Wes,
>>
>> I haven't seen the figures for the backlash on the gearheads. I
>have
>> a data sheet (?) in my gearhead boxes, but no help there.
>>
>> I was thinking of using these motors/gearheads on something like a
>> router. I also haven't seen the spec's on the ShopBots, where I
>> believe similar motors/GHs are used. That's where I thought you
>were
>> contimplating using them.
>>
>> Could be OK for your Grizz, but why not just use a appropritately
>> sized stepper at 1:1 or perhaps 2:1 to drive the axis?
>>
>> Alan KM6VV
>>
>>
>> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Harvey White <madyn@i...>
>> wrote:
>> > On Fri, 25 Apr 2003 13:07:29 -0700, you wrote:
>> >
>> > >Hi Wes,
>> > >
>> > >I'd watch the surplus and ebay channels for Oriental Motors
>(Vexta)
>> > >stepper/gearhead motors. I recall seeing ShopBot pix, and the
>> > >motors/gearheads looked like ones I've picked up. PH266 motors,
>> > >2GK7.5KA gearheads. Makes me want to build a router if I can
>use
>> my
>> > >parts!
>> >
>> > I've looked for the specs on the gearheads. I've got several
>> > PH66-01GK Vexta steppers with 2GK18KA gearheads. I've managed to
>> > crossreference the motors, and found the specs on the motors (I
>> > think), but the gearheads remain unavailable, spec wise...
>> >
>> > Any pointers?
>> >
>> > I'm thinking of driving the fine feed on a Grizzly Mini-mill with
>> one,
>> > I've got a Z axis DRO, so I'm less worried about backlash than
>> > otherwise.
>> >
>> > Harvey
>> >
>> >
>> > >
>> > >Alan KM6VV
>
>
>
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