Big Project | Project | Project Manager |
|---|---|---|
Pegasus 2 | Pegasus 2 Jig |
Task Description
Design a carrying jig for Peggy 2 that is compatible with the new landing gear, payload, and bottom plate
Constraints
Constraints | Written By | Append Date |
|---|---|---|
New bottom plate will not have as many mounting holes, use the large holes underneath the arms as mounting areas. | 2024-11-07 | |
Two variations of payload that it would possibly need to be compatible with. | 2024-11-07 | |
Have the base have arms that can reach past the motors unlike Peggy 1 Jig | 2024-11-07 |
Relevant Contacts
Subteam | Contact | Contact Description |
|---|---|---|
Subteam collaborating with | @ of contact | what is the contact responsible for? |
Assignees
Assignee | Asana Task | Date |
|---|---|---|
link to asana task assigned | 2024-11-07 |
Task Progression/Updates
Author: Evan Janakievski Date:
Inspiration
Use Peggy 1 Jig as inspiration for the new one, https://uwarg-docs.atlassian.net/wiki/x/FgD5jg
However, with the new landing gear and payload there will be a decent amount of changes.
Author: Evan Janakievski Date:
Updates from Alison Thompson after 2024-11-14 meeting:
Remove cheese from plate
Add needed holes to avoid angled landing gear
Author: Evan Janakievski Date:
Overall, looks good
The arms go past the motors which is good, there will be some awkwardness when the jig is angled, but this becomes too large if we think about the other angle and becomes tedious to take on and off
A couple things I forgot to mention but could be improved upon:
The holes for the where the jig holds onto the drone can be increased in size.
these were part of the drone before I made the first version and there have been issues when placing the drone on the jig
The countersunk holes can be taken away, they are a huge pain to machine and didn’t fully work as the 8 GA sheet isn’t thick enough
Use just standard M5s and the center bolt can be taken away
The bottom of the gussets can be trimmed to be equal with the boxtube, the oversized dimensions was to act as a support when sitting on the table/ground. However, we can get rid of this as adding tpu (or other 3d printer material) endcaps can be added
Ensure these endcaps are tall enough to go past the screw heads
Look at the endcaps on the arms for sizing to fit within the boxtube
The endcaps on the arms need to be rotated 180 degrees and can just be square, originally, I thought these would help with supporting the arms, but they don’t even touch the table half the time.
Ensure they cover sharp edges essentially
Author: Evan Janakievski Date:
Notes from mech meeting 2024-11-21:
Just adjust the holes on the carbon fiber, just a couple millimeters extra
No gusset changes or other hole changes
Whichever boxtube was changed please mark down somewhere so we know what needs to be ordered
Author: Evan Janakievski Date:
Please switch all the coincident mates you have for these parts to width mates so you can visualize how it would actually sit
You need to redo the distance between the holes, they should be inline with those hole clearances in the back of the screenshot
Author: Shawn Henry Dragon Date:
Modified Parts List:
P001_BOXTUBE1
P003_BOXTUBE3
P007_ALMOUNT
P008_BOXTUBE-EXTENSIONS
All other parts are unchanged from Pegasus 1 jig
Author: Evan Janakievski Date:
The updated holes look good, but maybe we remove the holes that are right next to them?
The close distance is 1.44 mm which might get broken off in the waterjet
Also need to keep in mind width of batteries, which are 58 mm about
The current width is 59, so maybe we use the old P007 as there is limited waterjet availability
The old one has an inner width of 60 which is what the space between the peek standoffs are and is already known to be enough clearance for the batteries
Do you remember what dimensions were changed on P007 between the first revision and this version?
Author: Shawn Henry Dragon Date:
Because of the waterjet availability changes are any of your previous edits still things that you want changed?
If nothing is fastened to the holes behind the ones I added then yes I will remove them, main is checked out at the moment but once I gain access to it I’ll remove those holes if possible (if not I’ll move the new ones a bit further away)
The space between the two holes is exactly 60mm so yes the old P007 will fit (I double checked in SolidWorks) however it will be very tight. The only change in P007was increasing the space so that the batteries would fit easier
Author: Evan Janakievski Date:
Because of the waterjet availability changes are any of your previous edits still things that you want changed?
No changes to be made apart from carbon fiber plate and necessary boxtube adjustments
If nothing is fastened to the holes behind the ones I added then yes I will remove them, main is checked out at the moment but once I gain access to it I’ll remove those holes if possible (if not I’ll move the new ones a bit further away)
The space between the two holes is exactly 60mm so yes the old P007 will fit (I double checked in SolidWorks) however it will be very tight. The only change in P007was increasing the space so that the batteries would fit easier
Change the distance of the holes to be the center distance from C24_JIG_P007
I used inches to make these parts as boxtube is in inches (foolish of me in the long run), so it might be an awkward millimeter measurement for center of the holes
These old ones have a slight bit more clearance for the battery and would allow us to use the old jig to build this new one