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Does anyone make a "Servo Travel Adjuster" ?
Posted:
Tue Nov 02, 2010 4:49 pm
by aesmith
Hi,
I've seen servo reversers, and slower-downers, but I wondered if anyone had seen a device that would increase the travel of a servo. For example so that the servo moves through its whole range even though the signal from the receiver only represents a much shorter travel.
Thanks, TonyS
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 1:17 am
by disco stu
I think thats a hack to do that, as the servo itself is limited to so many degrees (can't remember the figures though). Can't remember where I read it, but there was a similar one on a robotics website. The link may have come from on here. For some reason DIY RC electronics is ringing a bell for one of them
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 1:52 am
by RCModelReviews
Here at RCModelReviews.com, you only have to ask and
you will find
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 2:59 am
by disco stu
What about digital servo? Forgot they could be programmed (from the link added above):
Note: This product is not to be used with servos that offer more than 90° rotation from the factory or any brand of digital servos. Digital servo can be programmed electronically for 180° rotation.
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 8:13 am
by aesmith
RCModelReviews wrote:Here at RCModelReviews.com, you only have to ask and
you will find
Brilliant ... and of course that's exactly why I asked here. FYI I want it for flaps, to get around silly limitations with my transmitter and allow the full servo range to be used (transmitter really wants the servo centred with flaps up, so only half the travel is available, and even then for some reason you can only move 30 degrees with switch programming).
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 1:34 pm
by aesmith
Another thought .... would this make a sensible "First PIC Project" ? It seems to me one of the various servo reversing programs might be a good starting point.
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 9:14 pm
by RCModelReviews
It would be easy enough to program -- so long as you remember that software bugs tend to produce *real* crashes when they occur in software that controls part of your model
Re: Does anyone make a "Servo Travel Adjuster" ?
Posted:
Wed Nov 03, 2010 9:23 pm
by aesmith
RCModelReviews wrote:It would be easy enough to program -- so long as you remember that software bugs tend to produce *real* crashes when they occur in software that controls part of your model
That's what I thought (well your first comment anyway). I've seen several examples of servo reversing code which would make a good starting point.