stepper / slip ring / commutator
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Posts: 46,084
Stamp Folks,
My current project has two stepper motors. The first rotating an 18"
aluminum platform via a toothed belt (timing belt) and the second sitting
on the platform. I may rotate the platform as many as 20 times, stop then
rotate the stepper mounted on the platform. The stepper on the platform is
a NEMA 11 frame but could be as small an a NEMA 8 ( I'm just thinking of
using the motor I have in the shop). I also have three small solenoids with
a common return to power on the platform.
Considering the loads, do I want to use slip rings? Where do you get them
in a reasonable package size. I'd like to keep it down to 2" diameter so it
doesn't take up my free space under the platform. I know there are those
who would "roll their own", but I'm looking for an off the shelf solution
that doesn't cost an arm and a leg.
Thanks for any suggestions.
Mike
At 07:25 PM 12/9/2002 -0600, you wrote:
>Whats a snowmobile and how do batteries freeze? Never seen either down here
>in Texas! <grin>
>
>
Original Message
>
> > follow the threads on 26900. seems shorted cells and frozen
> > batteries along with well or tap water in batteries make them very
> > poor candidates.
> >
> > From what I read, it takes up to a few weeks to get them 'great'
> > again. but you might have a good chance. Ya got 3 days to design,
> > make, install and pulse to see if Saturday is spent getting a new
> > battery or laughing at your success ! Some results seem to be
> > immeadiate, complete cleaning takes some time.
>
> > > I just took a battery out of my snowmobile on Saturday. It was
> > frozen
> > > solid and bulging at the sides like a pumpkin. Are you saying that
> > I
> > > can restore it to its origional condition with a pulser?
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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>
>
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_________________________________
Mike Walsh
walsh@i...
[noparse][[/noparse]Non-text portions of this message have been removed]
My current project has two stepper motors. The first rotating an 18"
aluminum platform via a toothed belt (timing belt) and the second sitting
on the platform. I may rotate the platform as many as 20 times, stop then
rotate the stepper mounted on the platform. The stepper on the platform is
a NEMA 11 frame but could be as small an a NEMA 8 ( I'm just thinking of
using the motor I have in the shop). I also have three small solenoids with
a common return to power on the platform.
Considering the loads, do I want to use slip rings? Where do you get them
in a reasonable package size. I'd like to keep it down to 2" diameter so it
doesn't take up my free space under the platform. I know there are those
who would "roll their own", but I'm looking for an off the shelf solution
that doesn't cost an arm and a leg.
Thanks for any suggestions.
Mike
At 07:25 PM 12/9/2002 -0600, you wrote:
>Whats a snowmobile and how do batteries freeze? Never seen either down here
>in Texas! <grin>
>
>
Original Message
>
> > follow the threads on 26900. seems shorted cells and frozen
> > batteries along with well or tap water in batteries make them very
> > poor candidates.
> >
> > From what I read, it takes up to a few weeks to get them 'great'
> > again. but you might have a good chance. Ya got 3 days to design,
> > make, install and pulse to see if Saturday is spent getting a new
> > battery or laughing at your success ! Some results seem to be
> > immeadiate, complete cleaning takes some time.
>
> > > I just took a battery out of my snowmobile on Saturday. It was
> > frozen
> > > solid and bulging at the sides like a pumpkin. Are you saying that
> > I
> > > can restore it to its origional condition with a pulser?
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
>Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
_________________________________
Mike Walsh
walsh@i...
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
Good Luck
http://www.mercotac.com/html/main.html
http://www.fabricast.com/
Original Message
From: Mike Walsh [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=fd9g1zim_S1N3Y01RAAdtMMT2ADSjQyXTtxPm-qjoOKB8eb76-_WFRIGb5i_5zsMwanxl2eRvspdFBE]walsh@c...[/url
Sent: Monday, December 09, 2002 6:37 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] stepper / slip ring / commutator
Stamp Folks,
My current project has two stepper motors. The first rotating an 18"
aluminum platform via a toothed belt (timing belt) and the second sitting
on the platform. I may rotate the platform as many as 20 times, stop then
rotate the stepper mounted on the platform. The stepper on the platform is
a NEMA 11 frame but could be as small an a NEMA 8 ( I'm just thinking of
using the motor I have in the shop). I also have three small solenoids with
a common return to power on the platform.
Considering the loads, do I want to use slip rings? Where do you get them
in a reasonable package size. I'd like to keep it down to 2" diameter so it
doesn't take up my free space under the platform. I know there are those
who would "roll their own", but I'm looking for an off the shelf solution
that doesn't cost an arm and a leg.
Thanks for any suggestions.
Mike
At 07:25 PM 12/9/2002 -0600, you wrote:
>Whats a snowmobile and how do batteries freeze? Never seen either down here
>in Texas! <grin>
>
>
Original Message
>
> > follow the threads on 26900. seems shorted cells and frozen
> > batteries along with well or tap water in batteries make them very
> > poor candidates.
> >
> > From what I read, it takes up to a few weeks to get them 'great'
> > again. but you might have a good chance. Ya got 3 days to design,
> > make, install and pulse to see if Saturday is spent getting a new
> > battery or laughing at your success ! Some results seem to be
> > immeadiate, complete cleaning takes some time.
>
> > > I just took a battery out of my snowmobile on Saturday. It was
> > frozen
> > > solid and bulging at the sides like a pumpkin. Are you saying that
> > I
> > > can restore it to its origional condition with a pulser?
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
>Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
_________________________________
Mike Walsh
walsh@i...
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body
of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/