Automate turning of manual rotary switch?
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From: markp on 31 Mar 2010 10:54 Got a little problem. I've been asked to come up with something that turns a manual 3 way rotary switch from one position to another and back again under software control. The switch is one of those bulky things with a pointer style knob. They basically want to control a piece of equipment without modifying it in any way. Does anyone know of a switch actuator manufacturer? I'm looking for something I can place over the switch with a motor or solenoid to turn the switch (about 45 degrees per switch position). Thanks! Mark.
From: John Fields on 31 Mar 2010 11:21 On Wed, 31 Mar 2010 15:54:50 +0100, "markp" <map.nospam(a)f2s.com> wrote: >Got a little problem. I've been asked to come up with something that turns a >manual 3 way rotary switch from one position to another and back again under >software control. The switch is one of those bulky things with a pointer >style knob. They basically want to control a piece of equipment without >modifying it in any way. > >Does anyone know of a switch actuator manufacturer? I'm looking for >something I can place over the switch with a motor or solenoid to turn the >switch (about 45 degrees per switch position). --- Google "rotary switch actuator" without the quotes? JF
From: John Fields on 31 Mar 2010 11:23 On Wed, 31 Mar 2010 15:54:50 +0100, "markp" <map.nospam(a)f2s.com> wrote: >Got a little problem. I've been asked to come up with something that turns a >manual 3 way rotary switch from one position to another and back again under >software control. The switch is one of those bulky things with a pointer >style knob. They basically want to control a piece of equipment without >modifying it in any way. > >Does anyone know of a switch actuator manufacturer? I'm looking for >something I can place over the switch with a motor or solenoid to turn the >switch (about 45 degrees per switch position). Google "reversible rotary actuator" without the quotes. JF
From: Chris on 31 Mar 2010 11:29 On 31 Mar, 15:54, "markp" <map.nos...(a)f2s.com> wrote: > Got a little problem. I've been asked to come up with something that turns a > manual 3 way rotary switch from one position to another and back again under > software control. The switch is one of those bulky things with a pointer > style knob. They basically want to control a piece of equipment without > modifying it in any way. > > Does anyone know of a switch actuator manufacturer? I'm looking for > something I can place over the switch with a motor or solenoid to turn the > switch (about 45 degrees per switch position). > > Thanks! > > Mark. A Ledex switch perhaps, like http://www.surplussales.com/switches/SWLedex-1.html Chris
From: markp on 31 Mar 2010 13:57
"Chris" <christofire(a)talktalk.net> wrote in message news:c5adb46b-86f7-417c-a70e-af8bae0a4ffd(a)15g2000yqi.googlegroups.com... > On 31 Mar, 15:54, "markp" <map.nos...(a)f2s.com> wrote: >> Got a little problem. I've been asked to come up with something that >> turns a >> manual 3 way rotary switch from one position to another and back again >> under >> software control. The switch is one of those bulky things with a pointer >> style knob. They basically want to control a piece of equipment without >> modifying it in any way. >> >> Does anyone know of a switch actuator manufacturer? I'm looking for >> something I can place over the switch with a motor or solenoid to turn >> the >> switch (about 45 degrees per switch position). >> >> Thanks! >> >> Mark. > > > A Ledex switch perhaps, like > http://www.surplussales.com/switches/SWLedex-1.html > > Chris Thanks for that. That's something like what I'm looking for, except I don't need the wafers. However, the switch has mechanical stop positions on it that the motor would have to overcome, so may need a bit more gearing. Mark. |