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

Relevant Contacts

Assignees

Task Progression/Updates

Author: @Evan Janakievski Date: Nov 7, 2024

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: Nov 14, 2024

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: Nov 20, 2024

• 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

Open

• 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

Open

• 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: Nov 21, 2024

• 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: Nov 22, 2024

• 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: Nov 22, 2024

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: Nov 23, 2024

• 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: Nov 24, 2024

• 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: Nov 24, 2024

• 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

Author: @Shawn Henry Dragon Date: Nov 26, 2024

• Removed M3 Holes closest to the holes for the jig

• Confirmed battery clearance

• Increased width of jig holes

• Moved the jig holes slightly closer together so center distance matched the old P007 center distance
  
  

Author: @Evan Janakievski Date: Nov 28, 2024

Parts to be ordered:

1 x 1 box tube

1x 13.75 in
2x 6.5 in
4 x 12.25 in

Author: @Evan Janakievski Date: Nov 28, 2024

@Lucas Javier

C:\WARG_CAD\COMP2024\Pegasus Jig → reference for old drawings from first Jig

• use mm not inches

• use hole callouts, i did not

C:\WARG_CAD\COMP2025\Pegasus 2 Jig → path for new parts

The parts that need drawings are:

• P001_BOXTUBE1

• P003_BOXTUBE3

• P008_BOXTUBE-EXTENSIONS

Let me know if you have questions or cannot get them completed in time!

Author: @Evan Janakievski Date: Nov 28, 2024

• Drawings look good Lucas!

• A couple adjustments I would make and should have mentioned, but good to know for the future.

• For ordinate dimensioning, it helps to have the leader have sharper changes in angle.

  • helps distinguish the leader from other lines on the drawing if it is more crowded

• Second adjustment I made was the note on the page

• Before:

  • ALL DIMENSIONS IN MM

  • 1”x1”x1/8” BOX TUBE

• This note lets who is machining know what the stock size is before getting worked on the mill as well as what to do afterward.

  • Learned about these notes while on co-op after I did those other drawings

• The “ALL DIMENSIONS IN MM” is redundant from the title block, I recognize you adjusted it from my note that said it was in inches.

Author: @Lucas Javier Date: Nov 29, 2024

• Box tube drawings are now adjusted to be horizontal

• Leaders that are close together have a bit more separation

• Isometric views added to each drawing

• Box tube extension drawing now includes two orthographic views

• Over defining measurements were removed