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Miniature gears — Parallax Forums

Miniature gears

ArchiverArchiver Posts: 46,084
edited 2000-12-03 02:28 in General Discussion
Hello All,

I'm working on my robot that is currently a sort of miniaturized (can be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking forward to further miniaturizing it with smaller gears. Currently, I'm using the Cirrus's miniature servos.·Recently, I·opened up the servos and got the motors and the gears. From what I see there, it seems that the servo casing is occupying a lot of room. If I can find a mechanism to mount these gears onto something more custom to save that extra space, I can then in effect miniaturize it.

My question are as follows: Please help with any of your comments.

··· 1.··· Is there a dealer who sells miniature gears that I can use off the shelf and hook up the mini-motor ?
··· 2.··· I'd like to use the same gears found in the servo, but, want to get away from the casing. Can you please give me ideas on how to accomplish this.


I have a 1" X 1" space that I can work with, if I can get away from using the casing that will really save me more room.

Thanks a lot in advance.

nagi

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 21:28
    Hi Nagi,

    I don't have the servos that you speak of in front of me to look at, so I might be way off base.· My thought is to use a high speed rotary grinder to remove the mechanical and structural non critical spaces in the existing casing.· Then you still have something to hold the works in proper alignment, and possibly come up with some useful room in the un-needed parts of the case.

    If you don't like that, Jameco· www.jameco.com and Edmund Scientific's both sell miniature gear sets.

    Glad to hear your interesting project is still moving forward,
    Greg
    Original Message
    From: Babu, Nagi -*Contractor
    To: 'basicstamps@egroups.com'
    Sent: Thursday, November 30, 2000 3:51 PM
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking forward to further miniaturizing it with smaller gears. Currently, I'm using the Cirrus's miniature servos.·Recently, I·opened up the servos and got the motors and the gears. From what I see there, it seems that the servo casing is occupying a lot of room. If I can find a mechanism to mount these gears onto something more custom to save that extra space, I can then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    ··· 1.··· Is there a dealer who sells miniature gears that I can use off the shelf and hook up the mini-motor ?
    ··· 2.··· I'd like to use the same gears found in the servo, but, want to get away from the casing. Can you please give me ideas on how to accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 22:26
    towerhobbies.com sells servo gear sets, ranging in price form $3 to $30, mounting them would require you to find appropriate shafts and a pinion gear for your motor that you want to use. Basically sandwich the gears between 2 plates with the shafts mounted (with careful measurement) and mount your motor to drive the gears. But you're winding up with a gearmotor rather than a servo with the drive electronics associated, requireing you to drive them with an h-bridge of some type. You might simply experiment with removing the·case of the servo you're using to see how to fit it together more closely and still retain the drive electronics, perhaps moved to the side for a better fit.·Yet another possibility involves mounting the servos on top of on another, with a belt to drive the wheels where they are placed.
    Original Message
    From: Babu, Nagi -*Contractor
    To: 'basicstamps@egroups.com'
    Sent: Thursday, November 30, 2000 2:51 PM
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking forward to further miniaturizing it with smaller gears. Currently, I'm using the Cirrus's miniature servos.·Recently, I·opened up the servos and got the motors and the gears. From what I see there, it seems that the servo casing is occupying a lot of room. If I can find a mechanism to mount these gears onto something more custom to save that extra space, I can then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    ··· 1.··· Is there a dealer who sells miniature gears that I can use off the shelf and hook up the mini-motor ?
    ··· 2.··· I'd like to use the same gears found in the servo, but, want to get away from the casing. Can you please give me ideas on how to accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 22:36
    Thanks a lot Greg. I was out on vacation and was away from my robot
    projects too. I'm glad I'm back on track again [noparse]:)[/noparse]

    I'll try jameco.

    Thanks much again
    nagi



    Original Message
    From: Greg Lee Roth [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=DAJUR50b1PHB-VhBgy3WXavW_NpL8TFnYjkxOhtrSVl2tilPQewXa26OU5my533rG-D5RAGsJItn59LZ8UcUGw]greg_roth@m...[/url
    Sent: Thursday, November 30, 2000 3:28 PM
    To: basicstamps@egroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] Miniature gears


    Hi Nagi,

    I don't have the servos that you speak of in front of me to look at, so
    I might be way off base. My thought is to use a high speed rotary
    grinder to remove the mechanical and structural non critical spaces in
    the existing casing. Then you still have something to hold the works in
    proper alignment, and possibly come up with some useful room in the
    un-needed parts of the case.

    If you don't like that, Jameco www.jameco.com <http://www.jameco.com>
    and Edmund Scientific's both sell miniature gear sets.

    Glad to hear your interesting project is still moving forward,
    Greg
    Original Message
    From: Babu, Nagi <mailto:nags@c...> -*Contractor
    To: 'basicstamps@egroups.com' <mailto:'basicstamps@egroups.com'>
    Sent: Thursday, November 30, 2000 3:51 PM
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be
    found at http://nagi.crosscity.com/basicstamp/alibe
    <http://nagi.crosscity.com/basicstamp/alibe> ). I'm looking forward to
    further miniaturizing it with smaller gears. Currently, I'm using the
    Cirrus's miniature servos. Recently, I opened up the servos and got the
    motors and the gears. From what I see there, it seems that the servo
    casing is occupying a lot of room. If I can find a mechanism to mount
    these gears onto something more custom to save that extra space, I can
    then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    1. Is there a dealer who sells miniature gears that I can use off
    the shelf and hook up the mini-motor ?
    2. I'd like to use the same gears found in the servo, but, want
    to get away from the casing. Can you please give me ideas on how to
    accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from
    using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 22:39
    Thanks a lot Dave.
    I'll check the towerhobbies and bug you guys with more questions [noparse]:)[/noparse]



    nagi
    Original Message
    From: David Peterson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=UNiLlxFEgR_GXqoEgTcffyVBcwjPIsPyT1I6QQX9HSW2bR6FU6cBs3JIHFkK9c4nuBnQ1kF4un-s]robodave1@h...[/url
    Sent: Thursday, November 30, 2000 4:27 PM
    To: basicstamps@egroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] Miniature gears


    towerhobbies.com sells servo gear sets, ranging in price form $3 to $30,
    mounting them would require you to find appropriate shafts and a pinion
    gear for your motor that you want to use. Basically sandwich the gears
    between 2 plates with the shafts mounted (with careful measurement) and
    mount your motor to drive the gears. But you're winding up with a
    gearmotor rather than a servo with the drive electronics associated,
    requireing you to drive them with an h-bridge of some type. You might
    simply experiment with removing the case of the servo you're using to
    see how to fit it together more closely and still retain the drive
    electronics, perhaps moved to the side for a better fit. Yet another
    possibility involves mounting the servos on top of on another, with a
    belt to drive the wheels where they are placed.
    Original Message
    From: Babu, Nagi <mailto:nags@c...> -*Contractor
    To: 'basicstamps@egroups.com' <mailto:'basicstamps@egroups.com'>
    Sent: Thursday, November 30, 2000 2:51 PM
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be
    found at http://nagi.crosscity.com/basicstamp/alibe
    <http://nagi.crosscity.com/basicstamp/alibe> ). I'm looking forward to
    further miniaturizing it with smaller gears. Currently, I'm using the
    Cirrus's miniature servos. Recently, I opened up the servos and got the
    motors and the gears. From what I see there, it seems that the servo
    casing is occupying a lot of room. If I can find a mechanism to mount
    these gears onto something more custom to save that extra space, I can
    then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    1. Is there a dealer who sells miniature gears that I can use off
    the shelf and hook up the mini-motor ?
    2. I'd like to use the same gears found in the servo, but, want
    to get away from the casing. Can you please give me ideas on how to
    accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from
    using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 23:03
    Look at

    http://www.servocity.com

    ACJacques

    Babu, Nagi -*Contractor wrote:
    >
    > Hello All,
    >
    > I'm working on my robot that is currently a sort of miniaturized (can
    > be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking
    > forward to further miniaturizing it with smaller gears. Currently, I'm
    > using the Cirrus's miniature servos. Recently, I opened up the servos
    > and got the motors and the gears. From what I see there, it seems that
    > the servo casing is occupying a lot of room. If I can find a mechanism
    > to mount these gears onto something more custom to save that extra
    > space, I can then in effect miniaturize it.
    >
    > My question are as follows: Please help with any of your comments.
    >
    > 1. Is there a dealer who sells miniature gears that I can use
    > off the shelf and hook up the mini-motor ?
    > 2. I'd like to use the same gears found in the servo, but, want
    > to get away from the casing. Can you please give me ideas on how to
    > accomplish this.
    >
    >
    > I have a 1" X 1" space that I can work with, if I can get away from
    > using the casing that will really save me more room.
    >
    > Thanks a lot in advance.
    >
    > nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-30 23:18
    Awesome!!! thanks a lot. I'll get busy looking into these. It also has
    chains that I could use for my robot.

    Thanks again
    nagi



    Original Message
    From: A.C.Jacques [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=M2lpIBJ8coNk9xIScqJH0Rgx31IfG2Kxs9hMiRAt15UnIQjxbnNWeLj0wdGc0yvJPQnlvGjRZ7yEXcGIThBylg]acjacques@i...[/url
    Sent: Thursday, November 30, 2000 5:03 PM
    To: basicstamps@egroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] Miniature gears


    Look at

    http://www.servocity.com

    ACJacques

    Babu, Nagi -*Contractor wrote:
    >
    > Hello All,
    >
    > I'm working on my robot that is currently a sort of miniaturized (can
    > be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking
    > forward to further miniaturizing it with smaller gears. Currently, I'm
    > using the Cirrus's miniature servos. Recently, I opened up the servos
    > and got the motors and the gears. From what I see there, it seems that
    > the servo casing is occupying a lot of room. If I can find a mechanism
    > to mount these gears onto something more custom to save that extra
    > space, I can then in effect miniaturize it.
    >
    > My question are as follows: Please help with any of your comments.
    >
    > 1. Is there a dealer who sells miniature gears that I can use
    > off the shelf and hook up the mini-motor ?
    > 2. I'd like to use the same gears found in the servo, but, want
    > to get away from the casing. Can you please give me ideas on how to
    > accomplish this.
    >
    >
    > I have a 1" X 1" space that I can work with, if I can get away from
    > using the casing that will really save me more room.
    >
    > Thanks a lot in advance.
    >
    > nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-02 03:02
    Hello
    You could take a look at Microservos used for microlight radio controlled airplanes.
    You find these servos at your lokal R/C dealer.
    Regards ken J
    Original Message
    From: Babu, Nagi -*Contractor
    To: 'basicstamps@egroups.com'
    Sent: Thursday, November 30, 2000 9:51 PM
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking forward to further miniaturizing it with smaller gears. Currently, I'm using the Cirrus's miniature servos.·Recently, I·opened up the servos and got the motors and the gears. From what I see there, it seems that the servo casing is occupying a lot of room. If I can find a mechanism to mount these gears onto something more custom to save that extra space, I can then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    ··· 1.··· Is there a dealer who sells miniature gears that I can use off the shelf and hook up the mini-motor ?
    ··· 2.··· I'd like to use the same gears found in the servo, but, want to get away from the casing. Can you please give me ideas on how to accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-02 18:45
    Try http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm·for the smallest and lightest servos available. They do not use a geartrain like most, but a single spur and pinion gear driving a screw and provide a linear not rotary output. They are available in the USA from http://www.homefly.com/·

    I have no relationship to either company but do use a set of these servos in my indoor RC plane.

    Tim
    [noparse][[/noparse]Denver, CO]
    Original Message
    From: Babu, Nagi -*Contractor [noparse][[/noparse]mailto:nags@crosscity.com]
    Sent: Thursday, November 30, 2000 1:51 PM
    To: 'basicstamps@egroups.com'
    Subject: [noparse][[/noparse]basicstamps] Miniature gears

    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be found at http://nagi.crosscity.com/basicstamp/alibe). I'm looking forward to further miniaturizing it with smaller gears. Currently, I'm using the Cirrus's miniature servos.·Recently, I·opened up the servos and got the motors and the gears. From what I see there, it seems that the servo casing is occupying a lot of room. If I can find a mechanism to mount these gears onto something more custom to save that extra space, I can then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    ··· 1.··· Is there a dealer who sells miniature gears that I can use off the shelf and hook up the mini-motor ?
    ··· 2.··· I'd like to use the same gears found in the servo, but, want to get away from the casing. Can you please give me ideas on how to accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-02 20:11
    Tim, thanks for the reference;

    Homefly has neat stuff....how prompt is their delivery, especially for the
    airplane items?

    Regards,
    Ray McArthur
    Original Message
    From: Tim Goldstein <timg@k...>
    To: <basicstamps@egroups.com>
    Sent: Saturday, December 02, 2000 1:45 PM
    Subject: RE: [noparse][[/noparse]basicstamps] Miniature gears


    > Try http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm for the
    > smallest and lightest servos available. They do not use a geartrain like
    > most, but a single spur and pinion gear driving a screw and provide a
    linear
    > not rotary output. They are available in the USA from
    > http://www.homefly.com/
    << snip >>
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-03 01:45
    I have ordered from Dave (owner of Homefly) a couple of times and the
    service has always been prompt. On one of my orders there was an item that
    was out of stock and he offered to either return the money leave the item on
    order. I left the item on order and received it in about 4 weeks.

    Tim
    [noparse][[/noparse]Denver, CO]

    > Tim, thanks for the reference;
    >
    > Homefly has neat stuff....how prompt is their delivery, especially for the
    > airplane items?
    >
    > Regards,
    > Ray McArthur
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-03 02:27
    thanks Tim.

    Looks pretty cool. How good is there delivery time ?

    thanks
    nagi

    Original Message
    From: Tim Goldstein [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=w71ot-GtJ0QPU1bWxtrOC5MnKMie_si7HNXho3eHi9EY-rNmpp92LFPSc3KqEasdqUOmRhTzpp-o3Lo]timg@k...[/url
    Sent: Saturday, December 02, 2000 12:45 PM
    To: basicstamps@egroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] Miniature gears


    Try http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm
    <http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm> for the
    smallest and lightest servos available. They do not use a geartrain like
    most, but a single spur and pinion gear driving a screw and provide a
    linear not rotary output. They are available in the USA from
    http://www.homefly.com/ <http://www.homefly.com/>

    I have no relationship to either company but do use a set of these
    servos in my indoor RC plane.

    Tim
    [noparse][[/noparse]Denver, CO]
    Original Message
    From: Babu, Nagi -*Contractor [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=PO4G3nFx_-N6Tts2dP0-WRkAsT5kYHNJJZ46wyxYmT3x9ZfuxoMDf5cR82OP47r3XWJZWy36s-FSQA]nags@c...[/url
    Sent: Thursday, November 30, 2000 1:51 PM
    To: 'basicstamps@egroups.com'
    Subject: [noparse][[/noparse]basicstamps] Miniature gears


    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be
    found at http://nagi.crosscity.com/basicstamp/alibe
    <http://nagi.crosscity.com/basicstamp/alibe> ). I'm looking forward to
    further miniaturizing it with smaller gears. Currently, I'm using the
    Cirrus's miniature servos. Recently, I opened up the servos and got the
    motors and the gears. From what I see there, it seems that the servo
    casing is occupying a lot of room. If I can find a mechanism to mount
    these gears onto something more custom to save that extra space, I can
    then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    1. Is there a dealer who sells miniature gears that I can use off
    the shelf and hook up the mini-motor ?
    2. I'd like to use the same gears found in the servo, but, want
    to get away from the casing. Can you please give me ideas on how to
    accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from
    using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
  • ArchiverArchiver Posts: 46,084
    edited 2000-12-03 02:28
    Tim,

    never mind. I missed your earlier response abt their turnaround time

    thanks again
    nagi


    Original Message
    From: Nagi Babu
    Sent: Saturday, December 02, 2000 8:27 PM
    To: basicstamps@egroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] Miniature gears


    thanks Tim.

    Looks pretty cool. How good is there delivery time ?

    thanks
    nagi

    Original Message
    From: Tim Goldstein [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=AgsjLKbw-I42fFkmMAe4lbUqLNXwdOSH0j7uSv3JtBGT2kOCjb7ia1ROpTOMEhmdH1KmluMGIubgzWg]timg@k...[/url
    Sent: Saturday, December 02, 2000 12:45 PM
    To: basicstamps@egroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] Miniature gears


    Try http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm
    <http://www.idnet.de/homepage/scholl/Englisch/light_ng.htm> for the
    smallest and lightest servos available. They do not use a geartrain like
    most, but a single spur and pinion gear driving a screw and provide a
    linear not rotary output. They are available in the USA from
    http://www.homefly.com/ <http://www.homefly.com/>

    I have no relationship to either company but do use a set of these
    servos in my indoor RC plane.

    Tim
    [noparse][[/noparse]Denver, CO]
    Original Message
    From: Babu, Nagi -*Contractor [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ky08CvMDshAQRIPfeJxB3ZooD5z1I5OoTmWYzbBFG1CCsBrKHDAh_EXx6eWuTK0b4YXcfoEBZDV4zCNOrQ]nags@c...[/url
    Sent: Thursday, November 30, 2000 1:51 PM
    To: 'basicstamps@egroups.com'
    Subject: [noparse][[/noparse]basicstamps] Miniature gears


    Hello All,

    I'm working on my robot that is currently a sort of miniaturized (can be
    found at http://nagi.crosscity.com/basicstamp/alibe
    <http://nagi.crosscity.com/basicstamp/alibe> ). I'm looking forward to
    further miniaturizing it with smaller gears. Currently, I'm using the
    Cirrus's miniature servos. Recently, I opened up the servos and got the
    motors and the gears. From what I see there, it seems that the servo
    casing is occupying a lot of room. If I can find a mechanism to mount
    these gears onto something more custom to save that extra space, I can
    then in effect miniaturize it.

    My question are as follows: Please help with any of your comments.

    1. Is there a dealer who sells miniature gears that I can use off
    the shelf and hook up the mini-motor ?
    2. I'd like to use the same gears found in the servo, but, want
    to get away from the casing. Can you please give me ideas on how to
    accomplish this.


    I have a 1" X 1" space that I can work with, if I can get away from
    using the casing that will really save me more room.

    Thanks a lot in advance.

    nagi
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