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Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
Andy7:
21 Aug 2019 12:15:41
Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
atomiclama:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
DarkButterfly:
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
ched:
09 Jul 2019 19:45:42
May the sun shine and winds be light for BFU#8. Son't forget lots of vids for those of us unable to attend.  :D
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3d - Printworx

Printing 3d Forum

Prototype tilt/roll gimbal

Started by sausageroll, Monday,October 08, 2012, 23:46:35

Previous topic - Next topic

sausageroll

So ive been procrastinating about building a gyro tilt roll head to hold a DSLR type thing. Rather than jump straight in with the laser cutting, I thought id mock up a prototype, cut up with the bandsaw and very badly welded together (aluminium is a ******). It looks ok, im quite surprised!!

Will update as I go along.


Gaza07


Balders

I was sketching out a roll/tilt gimbal the other day.  For pan I just intend pointing the copter at whatever it is I'm filming.  Hoping the naza gimbal control keeps things flat and level.

Going to knock something up from ply hopefully this weekend.
Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified
Sbaps.co.uk

sausageroll

Had a busy day banging, grinding screwing blowtorching, skipping around in agony, bandsawing etc.



Tadaa!!!!

Gaza07


Balders

Plugged mine into the Naza tonight. Need to tweak the gains a bit but not a bad starting point.

Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified
Sbaps.co.uk

Gaza07

Looking good Balders deff needs a bit more gain on the pitch servo, look forward to seeing your first test video using this  :bravo:

sausageroll

Well I plugged it all up, and the roll servo was shaking very violently, I think maybe it was scared of heights and was a bit nervous. I changed it for a less terrified servo and now all is ok.

Well, its about as OK as it can be with these decent quality but standard nothing-special servos. (HS-645MG from Hitec)

Thinking I need faster servos. The vibrating from the motors is tollerable but the fact it cant keep up with tilting is a bit of a pain. My thought is faster servos will keep up. The ones im using are down at 0.24 (I think thats 0.24 seconds for a 60 degree move) and I have identified some faster hitec servos that are 0.6s/60deg. These unfortunatly are close to 80 quid each, but luckily I have a trade account with the distributors and I can get them for 59 each. Might try just one axis and see if it does keep up and if there is much of a differnce, if there is, il do the other one.


Also in this video you will notice the main column thing is FAR too long. Basically i promised myself I would adjust the length of this when I had all the parts together, before I welded the top on. I was very excited and jumped the gun and totally forgot to cut it down and welded it on anyway without thinking, so now it hangs really low it could do with being about 2 inches shorter. I cant re weld it with the servos in there caus the heat will melt them so il have to take it all apart and cut it down and re weld it.

Anyway, see what you think. not bad for a days tinkering (no money spent)


Rick

That looks very nice, and professional as well. With that shaft shortened it would be ideal.  I wonder how the servos would cope in real life. I mean I know you can physically out tilt them, but could they cope with the tilts required during a steady flight?

Very nice build. Well done.

Gaza07

Wow excellent job Pete, you will have to let us know what servos perform best once you've tried some  ~~ it looked like you had a large burn mark on your arm but I think it was the naza light  ;)

Balders

Don't mean to be hijacking this thread, but had a good mess around earlier today, throwing it around quite violently really (much more so than I ever would normal flying). Results aren't too bad at all...


Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified
Sbaps.co.uk

Gaza07

Looks like its working quite well as you can see how much stick your giving it but the camera stays pointing at the table, the pitch seems to work better than the roll  :bravo:

Balders

yup all part of the tweaking...as you say the pitch looks spot on but roll needs a tweak.  The servo';s are different, I might make a Mk2 with decent servos and in aluminium.
Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified
Sbaps.co.uk

Gaza07

Yea the sausage copter design seems popular  ::) ::) ::)

sausageroll



Shortened the column, and extended the legs with some carbon tube. A bit long, need to cut the legs down a bit.