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Diatone White Sheep GoPro Gimbal

by thefrog, published

Diatone White Sheep GoPro Gimbal by thefrog Jan 20, 2016
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Summary

This is a GoPro Gimbal I've designed around the GBM2804 Hollow Shaft Motors for the White Sheep.
It allows for nice cable management with cable guides and by routing them through the axis they can move freely without tension from the angle of the gimbal.

Some parts were salvaged from a cheap Ebay Gimbal like the Vibration dampeners and the Alexmos Board. (I have some arms for these kind of motors aswell ... these files are marked as MADPOWER)

The GoPro ist mounted in a Housing and secured by a velcro strap.
Here comes the tricky part ... You have to sew :) (It's really not that difficult with a sewing machine ... Or just ask your mom)
(If you like to live dangerously you could also just trust the friction of the housing to hold it)
The housing allows for a slim FPV cable to the GoPro which you can get here :
http://www.hobbyking.com/hobbyking/store/__57996__Super_Slim_GoPro_3_A_V_Cable_And_Power_Lead_For_FPV_UK_Warehouse_.html?strSearch=slim%20fp

What to Print?
One of everything - except:
2x TopCap.STL (if you use no FPV Camera)
1x TopCap.STL 1x FPVMount.STL (for FPV Board Cam)

ARMGBM2804Fix has no adjustment to balance the Gimbal, but is pretty much the balance point for it. Aswell you can mount the Zip Tie inside the arm, so its flush.
Maybe I will incorporate that into the normal Arm ...

What to Buy?
2x GBM2804 Hollow Shaft (http://www.banggood.com/RCTimer-BGM2804-100T-Brushless-Gimbal-Motor-Hollow-Shaft-p-951199.html)
4x Vibration Damper (http://www.banggood.com/Anti-vibration-Rubber-Shock-Absorber-Ball-AV-Ball-150g-p-917595.html)
1x Gimbal Controller (Alexmos(preferably Mini), Storm32, etc.)
1x Double Sided Velcro ca. 8mm wide and 1mm thick (buy something like this and cut down to 8mm : http://www.banggood.com/4_5m-10mm-Velcro-Sticky-Adhesive-Hook-and-Loop-Tape-Fasten-Stitch-Cable-Tie-Wrap-Cord-Straps-p-1031161.html)
4x M3x5 Socket Cap Hex(2x if you want to save some weight)
8x M3x6 Socket Cap Hex(4x if you want to save even more weight)
4x M3x8 or M3x10 Countersink Hex
4x M3 Hex Nut
some 2,5mm Zip Ties
Double sided Tape

Optional:
1x FPV-Cable (http://www.hobbyking.com/hobbyking/store/__57996__Super_Slim_GoPro_3_A_V_Cable_And_Power_Lead_For_FPV_UK_Warehouse_.html?strSearch=slim%20fp)

SimpleBGC Settings: (I've uploaded my profile file aswell, you can just flash that file via the GUI)
Roll P: 12 I: 0.45 D: 18
Pitch P: 10 I: 0.5 D: 12

Motor Config:
Roll Power: 100
Pitch Power 80

Sensor:
Axis TOP: -Z
Right: Y

Things I want to change in the near future:

  • change to Alexmos Mini Board
  • enclosure/mount for Alexmos Mini on BaseFront
  • proper closed Board Camera mount/enclosure
  • maybe add support for other quads ? Let me know
  • Build Guide

Print Settings

Resolution:

0,1 or 0,2

Infill:

30% - 50%


Notes:

Long Holes need support!

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I printed the parts, but I am kinda confused how to build it. Could you upload some more detailed photo's? And also what kind of file is with the stl's? I can't seem to open it.

Thanks

Comments deleted.

What exactly is unclear? You need to specify your problem for me to help you ...
The file is kind of the firmware/config for the gimbal controller. This gets loaded onto the board within the SimpleBGC GUI and should spare you the difficult process of finding PID and motor settings ;)

Jun 9, 2017 - Modified Jun 9, 2017
MatthijsJordense - in reply to thefrog

Well I think the problem is that my vibration issolating balls are to small. Because if I'm correct, you have the "basefront" with the flat side facing inwards, and the bobbins then facing forward to the motor mount itself right? But my bobbins dont even reach beyond the 'square with the circle inside' to reach the motor mount.
I can post some pictures tomorrow.

And ah that makes sense.

Thanks for the quick reply and nice design :)

I've made a render of the assembly ... its in the pictures ;)

Thank you soo much, that will help a lot. You see I don't have the electronics yet, but I am using the cheap gopro hero (can't get out of it's housing) so I am trying to design my own mount, and I couldn't quite figure out how to assemble the gimbal itself. (I'll post it as a remix when it's done)

Also, the reason I couldn't figure it out, is because my bobbins are in fact too short. They don't reach beyond the "wall" of the basefront.

Thanks again

Greetings from your neighbours, Holland :)

Any chance of you being able to print these for purchase? I have my frame in the mail but I do not have a 3d Printer

If you live in Germany ... yes. Pm me ;)

Hey man, I made this gimbal but im getting vibrations from the rubber balls, like a see saw effect. Could you post a flight video with this gimbal? and some more clear pictures of the assembly if possible.

Hey m8!

Could u tell me pls what filament did u use? I'm going to print with PLA but thinking may be to use ABS.

Already printing some parts in PLA, looks good.

Thanx

Hi,

you could run into some problems with PLA if you're flying in hot weather and generally it's not that well suited for outdoor use.
You could try to print with Green-TEC from Extrudr.eu if you're not comfortable with printing ABS.

Feb 1, 2016 - Modified Feb 2, 2016

By chance could you send the file for the go pro mount? Id like to change the part close to where the power / video plug goes into the go pro, not enough room with my cable

Comments deleted.

Fotage/Video recorded in flight?

I will try to do some over the weekend ...

How did the fotage/video go? =)

Hey ... sorry but I stopped flying shortly after finishing the gimbal build.
The only snippet of video I still have is this:
https://www.dropbox.com/s/h46yac28wddqwfz/Gimbal.mp4?dl=0
Sadly the GoPro stopped recording shortly after takeoff :(
The Gimbal definitly works but it could use some refinement ...
For example you should use stiffer rubber thingys or none at all because they introduce some jitter to the image. Maybe this is compensated by modern image stabilisation though ...

I'm currently working on a small portable 2-axis Gimbal for the Session that uses the same frame case you get from GoPro ... But due to print complexity it's probably not for everyone ;)

Will be nice to see.. =)

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