Pan & Tilt Brushless Gimbal
August 2015
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| Pan & Tilt 2 axis gimbal |
Introduction
Using concepts and pieces form my 3 axis gimbal, I put together a 2-axis Mobius gimbal that works on Pan (yaw) and Tilt (pitch). For this I am using the same (15mm) gimbal motor from RCTimer with a hollow shaft to help with wire routing. The hollow shaft makes the routing easy without affecting the motion freedom. The motor wires are nice ultra-flexible silicone and you can fit up to three sets through the shaft opening.
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| RCTimer hollow shaft motor |
After a few iterations in SolidWorks, I printed a few different versions to zero-in on the balance and clearances. It balances perfectly with no added counterweight as long as you have the "C" lens and the PU Gel pad. Here is how it looks in SolidWorks:
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| 3D Model (SolidWorks) |
For the mounting I am again using an Align PU Gel pad for anti-slip and minor vibration isolation.
Dimensions
Gimbal height is shown in the drawing image below. As far as rotational, here are the numbers "as-built":
- Pitch: +/- 50 Degrees
- Yaw: +/- 160 Degrees
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| Envelope drawing |
Parts List
Motors, Controller & Hardware
- 2 RCTimer GBM2804 hollow shaft gimbal motors
- Storm32 v1.1 or newer brushless gimbal controller
- 12 M3x8 socket head cap screws
- 12 M3 flat washers
- 6 M3x6 flat head screws
- Align PJ Gel Pad
- Small wire ties
3D Prints
- Camera Mount Plate - Mob_Mnt_Plate_v03
- Camera Mount Motor Plate - Mob_End_Plate_v01
- Gimbal Pitch Arm - Mob_G_E_Pitch_Brkt_v003
- Gimbal Yaw Arm - Mob_G_E_Yaw_Brkt_v004
- Base Motor Bracket - Yaw_Motor_Brkt_v001
Tools needed
- 2.5mm ball end driver (allen wrench)
- Phillips head screwdriver
- 3mm tap and tap drill
- Wire cutters
Camera
- Mobius with lens '2C'
Files
Here are the print files if you would like to give this a try. The zip contains the 5 printable pieces and image files, simply richt-click the link and select "Save Target" for the download. If you would like the native SolidWorks files, please drop me a line (below) and I will accomodate.
Control Board
I won't go into details here other than to say my favorite controller (also from RCG poster Noircogi!) is still the Storm32 unit from ReadyToFlyQuads.com. These work better than any of the previous "Martinez" open source boards and I would highly recommend them.
Comments? Questions?
