If/When it breaks again, we might try a design closer to this. It'd require
some modifications since the camera is different, but the direct drive
might work out pretty well if the servos can take it.
I think that even that little might be overkill. If we use slightly larger
servos we can just stick them together with the camera on the end. Pan
servo screwed down facing up, the next sits sideways on that (just epoxy
the horn to the side of the servo), and then attach the side of the camera
to the second servo. Arrange the mount points so the rotation axis are
approximately balanced and it should be good.
On Wednesday, August 15, 2012, James Harr wrote:
> If/When it breaks again, we might try a design closer to this. It'd
> require some modifications since the camera is different, but the direct
> drive might work out pretty well if the servos can take it.
Agreed. I like the balanced, direct drive [low play] design was the part
that I was really interested in.
What size of servos are on there now? How large would you go? Any good/bad
luck with particular manufacturers? I was contemplating getting a couple to
play with anyway. Because, you know, I can't order just the stuff I need
from hobby king.
On Fri, Aug 17, 2012 at 8:32 AM, David Knaack <davidkna...@gmail.com> wrote:
> I think that even that little might be overkill. If we use slightly larger
> servos we can just stick them together with the camera on the end. Pan
> servo screwed down facing up, the next sits sideways on that (just epoxy
> the horn to the side of the servo), and then attach the side of the camera
> to the second servo. Arrange the mount points so the rotation axis are
> approximately balanced and it should be good.
> On Wednesday, August 15, 2012, James Harr wrote:
>> If/When it breaks again, we might try a design closer to this. It'd
>> require some modifications since the camera is different, but the direct
>> drive might work out pretty well if the servos can take it.
The ones on there now are size tiny. Size "standard" is probably fine for
no heavier than the camera is...
On Aug 17, 2012 9:50 AM, "James Harr" <james.h...@gmail.com> wrote:
> Agreed. I like the balanced, direct drive [low play] design was the part
> that I was really interested in.
> What size of servos are on there now? How large would you go? Any good/bad
> luck with particular manufacturers? I was contemplating getting a couple to
> play with anyway. Because, you know, I can't order just the stuff I need
> from hobby king.
> On Fri, Aug 17, 2012 at 8:32 AM, David Knaack <davidkna...@gmail.com>wrote:
>> I think that even that little might be overkill. If we use slightly
>> larger servos we can just stick them together with the camera on the end.
>> Pan servo screwed down facing up, the next sits sideways on that (just
>> epoxy the horn to the side of the servo), and then attach the side of the
>> camera to the second servo. Arrange the mount points so the rotation axis
>> are approximately balanced and it should be good.
>> On Wednesday, August 15, 2012, James Harr wrote:
>>> If/When it breaks again, we might try a design closer to this. It'd
>>> require some modifications since the camera is different, but the direct
>>> drive might work out pretty well if the servos can take it.
> The ones on there now are size tiny. Size "standard" is probably fine for
> no heavier than the camera is...
> On Aug 17, 2012 9:50 AM, "James Harr" <james.h...@gmail.com> wrote:
>> Agreed. I like the balanced, direct drive [low play] design was the part
>> that I was really interested in.
>> What size of servos are on there now? How large would you go? Any
>> good/bad luck with particular manufacturers? I was contemplating getting a
>> couple to play with anyway. Because, you know, I can't order just the stuff
>> I need from hobby king.
>> On Fri, Aug 17, 2012 at 8:32 AM, David Knaack <davidkna...@gmail.com>wrote:
>>> I think that even that little might be overkill. If we use slightly
>>> larger servos we can just stick them together with the camera on the end.
>>> Pan servo screwed down facing up, the next sits sideways on that (just
>>> epoxy the horn to the side of the servo), and then attach the side of the
>>> camera to the second servo. Arrange the mount points so the rotation axis
>>> are approximately balanced and it should be good.
>>> On Wednesday, August 15, 2012, James Harr wrote:
>>>> If/When it breaks again, we might try a design closer to this. It'd
>>>> require some modifications since the camera is different, but the direct
>>>> drive might work out pretty well if the servos can take it.
I wouldn't necessarily bother with metal gears, though. You can go even
cheaper if you skip that; any standard size servo will be more than
adequate (I've mounted quarter-horsepower motors directly to servos weaker
than Brandon posted). I'd be tempted to cheap out and play with something
like these<http://www.hobbyking.com/hobbyking/store/__13360__TGY_S4505B_40g_4_8k...>
.
On Aug 17, 2012 12:21 PM, "Brandon Norris" <blnor...@gmail.com> wrote:
> On Fri, Aug 17, 2012 at 10:01 AM, Kevin Fusselman <ke...@fusselman.org>wrote:
>> The ones on there now are size tiny. Size "standard" is probably fine for
>> no heavier than the camera is...
>> On Aug 17, 2012 9:50 AM, "James Harr" <james.h...@gmail.com> wrote:
>>> Agreed. I like the balanced, direct drive [low play] design was the part
>>> that I was really interested in.
>>> What size of servos are on there now? How large would you go? Any
>>> good/bad luck with particular manufacturers? I was contemplating getting a
>>> couple to play with anyway. Because, you know, I can't order just the stuff
>>> I need from hobby king.
>>> On Fri, Aug 17, 2012 at 8:32 AM, David Knaack <davidkna...@gmail.com>wrote:
>>>> I think that even that little might be overkill. If we use slightly
>>>> larger servos we can just stick them together with the camera on the end.
>>>> Pan servo screwed down facing up, the next sits sideways on that (just
>>>> epoxy the horn to the side of the servo), and then attach the side of the
>>>> camera to the second servo. Arrange the mount points so the rotation axis
>>>> are approximately balanced and it should be good.
>>>> On Wednesday, August 15, 2012, James Harr wrote:
>>>>> If/When it breaks again, we might try a design closer to this. It'd
>>>>> require some modifications since the camera is different, but the direct
>>>>> drive might work out pretty well if the servos can take it.
Even the tiny ones would probably be fine as long as the load on the tilt
servo axis is close to the camera center of mass.
The MMM has a linear ramp on the servo position already (it could actually
go faster, but it puts too much stress on the flimsy control rods), so the
rate can be adjusted to keep the dynamic load on the servos reasonable.
> On Fri, Aug 17, 2012 at 10:01 AM, Kevin Fusselman <ke...@fusselman.org>wrote:
>> The ones on there now are size tiny. Size "standard" is probably fine for
>> no heavier than the camera is...
>> On Aug 17, 2012 9:50 AM, "James Harr" <james.h...@gmail.com> wrote:
>>> Agreed. I like the balanced, direct drive [low play] design was the part
>>> that I was really interested in.
>>> What size of servos are on there now? How large would you go? Any
>>> good/bad luck with particular manufacturers? I was contemplating getting a
>>> couple to play with anyway. Because, you know, I can't order just the stuff
>>> I need from hobby king.
>>> On Fri, Aug 17, 2012 at 8:32 AM, David Knaack <davidkna...@gmail.com>wrote:
>>>> I think that even that little might be overkill. If we use slightly
>>>> larger servos we can just stick them together with the camera on the end.
>>>> Pan servo screwed down facing up, the next sits sideways on that (just
>>>> epoxy the horn to the side of the servo), and then attach the side of the
>>>> camera to the second servo. Arrange the mount points so the rotation axis
>>>> are approximately balanced and it should be good.
>>>> On Wednesday, August 15, 2012, James Harr wrote:
>>>>> If/When it breaks again, we might try a design closer to this. It'd
>>>>> require some modifications since the camera is different, but the direct
>>>>> drive might work out pretty well if the servos can take it.
