Monster Mount
Big Project | Project | Project Manager |
---|---|---|
Electronics Mounts | Monster Mount | @Nathan Green |
Task Description
The goal of this task is to design a light-weight mount which can “clip” onto an arm without removing any wires. It will use a dove tail mechanism with clevis/cotter pin to lock the mount on the arm.
Constraints
Constraints | Written By | Append Date |
---|---|---|
Light weight | @Smile Khatri | October 4, 2023 |
Must mount:
| @Smile Khatri | October 4, 2023 |
Easy to clip onto the arm | @Smile Khatri | October 4, 2023 |
Minimize exposure to prop wash | @Smile Khatri | October 4, 2023 |
Relevant Contacts
To be written by the component owner and should be used if collaborating with another subteam. This should be the “component owner” of the other subteam and/or the person on those subteams. Delete if not used. DELETE THESE INSTRUCTIONS BEFORE PUBLISHING
Subteam | Contact | Contact Description |
---|---|---|
Operations | @Anthony Luo |
|
Assignees
Assignee | Asana Task | Date |
---|---|---|
@Smile Khatri | August 2023 |
Task Progression/Updates
Author: person updating Date: YYYY/MM/DD
Author: @Smile Khatri Date: 2023/10/04
Design/Manufacturing Updates
The initial design of the monster mount (hereafter referred to as MM) consisted of a tube fixture with a dove tail section, and a plate (on which the sensors are mounted) with a socket dove tail region. However, the problem of this design was that the long side of the plate was perpendicular to the carbon fiber (CF) tube which meant the sensors would be exposed to prop wash (shoutout to @Anthony Luo for pointing this out).
Another issue with this design is that the X and Y axes of the FPV cam, $200 CV cam and OFS would not align with the X and Y axes of the drone (assuming that the forward direction of the drone aligns with one of these axes).
This revelation led to design #2. Also, at this point it had already been decided that the MM would sit on the front left arm of the drone.
Heavy modifications were made in design #2 to reduce the weight of the mount and also solve the camera and OFS misalignment issue.
You can see that the cameras and OFS are rotated 45 degrees so that their axes align with the forward direction. The alignment of the lidar doesn’t matter according to @Anthony Luo.
In design #2, the plate will slide onto the tube fixture in a perpendicular direction to the length of the tube. This will allow the long length of the plate to be collinear with the CF tube which we expect will protect the sensors and camera from prop wash.
As for sliding in the dove tail, it is a medium tight fit and a cotter/clevis pin is used to prevent the plate from sliding.
For the OFS, it will be stuck onto the plate using a double sided thick sticker and also via a clamp. The clamp will be a ‘plank’ which is attached to the plate using M3 screws. Heat set inserts will be integrated into the plate so that the plank can be screwed (no pics yet).