You can do your own custom servo with one of these boards and some other hardware. http://rcpowerservo.com/rc-power-servo/ -----Mensaje original----- De: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]En nombre de Tamas Rudnai Enviado el: Domingo, 22 de Julio de 2012 07:02 a.m. Para: Microcontroller discussion list - Public. Asunto: Re: [EE] Servos sources? On 22 July 2012 05:11, Electron wrote: > > I couldn't use my PC for a week.. thank you for all your replies meanwhile. > > I noticed that almost all servos are 6V.. why? 12V would be better for > me.. but there seem to be almost none that can withstand 12V. > The hobby servos are pretty much standardised so you can use virtually any of them in a wide range of applications. The standard "analogue" servos are designed for 5V operation (or 4 cell battery pack), but most of them also operates till 6V range (5 cell battery pack). The new "digital" ones are pretty much the same, however, these are not good at low voltage. These needs at least 4.8V to operate correctly, which means you need at least 5 cell battery pack. Of course operating these at higher voltage gives you faster movement and higher torque, so a 5 cell battery pack is considered better with a little extra weight. You also can have the so called BEC (Battery Elimination Circuit), which is basically a voltage regulator (usually to 5V). So if you have a "3S" Li-Po battery (~12V) then you need this regulator. Usually there is a built in one in the motor controller (in hobby word also called speed controller), and in most modern digital radio receivers too especially on the 2.4GHz systems. Some people does not like the idea of operating the servos from the same battery source which also powers the motor -- simply because if anything happens with the battery, like deep discharged, you may have lose the chance for a dead-stick landing too (gliding down the plane instead of crashing it to the ground) Anyway, you may can search for high voltage servos, I have found these (have not use any of them) Futaba "HV" servos up to 7.4V: http://www.servocity.com/html/s3051hv_hi_voltage_servo.html Hitec "MH" servos up to 7.4V (also look at the sheet where the 7.4V field discuss the power and speed) http://www.servocity.com/html/hitec_servos.html Mega Servo up to 7.4V: http://www.servocity.com/html/ms530-1_mega_servo.html Also if you search for "12v servo" on eBay: http://www.ebay.com/sch/i.html?_nkw=3D12v+servo This one looks like what you are looking for -- $60 and very high torque that operates up to 12V: http://www.ebay.com/itm/30kg-Heavy-HV-12V-3S-Digital-Metal-Servo-Titanium-G= e ar-/130514404666?pt=3DRadio_Control_Parts_Accessories&hash=3Ditem1e6343c53a= #ht_2 419wt_986 Tamas > > Cheers, > Mario > > > > At 02.17 2012.07.16, you wrote: > >On 15 July 2012 15:51, Lee Mulvogue wrote: > > > >> That's my suggestion as well. For general RC use, can't go past > >> the > >> HXT900, $3 and proven by thousands of users. And you can get a > >> replacement gear set for $1 or so. > >> > > > >My favourite is the New Power digital series: Cheap, fast and strong, an= d > >does not have too much of overshot either. > > > >The New Power XLD-09HMB is an 11g micro servo, it has pretty much the same > >power as the Futaba 3001, but it weights 1/4 of it. I could save about > 200g > >on my plane by replacing 5 servos to this! > > > >Tamas > > > > > > > > > > > >> > >> Lee > >> > >> ------------------------- > >> Msg sent via Webmail - http://hosting.myob.com/ > >> -- > >> http://www.piclist.com PIC/SX FAQ & list archive > >> View/change your membership options at > >> http://mailman.mit.edu/mailman/listinfo/piclist > >> > > > > > > > >-- > >int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q; > >printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }", > >q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); } > >-- > >http://www.piclist.com PIC/SX FAQ & list archive > >View/change your membership options at > >http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q; printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }", q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); } -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2197 / Virus Database: 2437/5146 - Release Date: 07/21/12 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .