Due Date:
Contributor Log
Name | Contribution |
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Project Manager | |
Owner |
Skills
Solid works
Lathe
Milling
3D Printing
Task Description
The first manufacturing revision of the carbon fiber drivetrain chassis was completed in W24. The right rocker subassembly currently has a joint in misalignment.
This is the joint that connects the bogie to the rocker subassembly. During epoxy, the joint was secured to the carbon fiber with the aid of 3D printed jigs that align the components in the desired orientation. Vacuum forces fought against the joint getting epoxied, and this is speculated to have caused misalignment.
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The scope of this task is to improve the design of epoxy jigs to ensure proper alignment and fully remanufacture the right rocker arm.
In the first revision of rocker arm remanufacturing, vacuum forces were fought by pushing against the joints and keeping the in place with random heavy elements
The epoxy jig is now required to linearly constrain the joints of the subassembly against vacuum forces while the epoxy cures. Additional constraints to ensure the joints remain in the desired orientation is recommended
Task Breakdown
- Remanufacturing and reassembly of right rocker arm
- Step 1 - Purchase required material stock
- Step 2 - Iterate on epoxy jig design and provide justifications for improvements in a one paragraph report in the progress journal
- Step 3 - Machine motor joint
- Step 4 - Order carbon fiber tubing and make work request for the following
- Welded MR24-DT-P001 ~ MR24-DT-P008
- Welded MR24-DT-P008 ~ MR24-DT-P009
- Step 5 - 3D Print epoxy jigs; fabricate and purchase miscellaneous components
- Step 6 - Rocker arm assembly and epoxy
Prerequisites
This task is a pre requisite to the drivetrain reassembly task
Progress Journal
(date and name)
brief update on whats done and what are the next steps, photos and images and videos are preferred
Etc.
Relevant Documentation Links
Wheel joint CAD Model number : MR24-DT-P034
Drawings can be found in Kenesto Sandbox / David Choi
In drivetrain assembly (MR24-DT-A00.00) do the following:
Check out the file using Kenesto
Create a derived configuration from ‘Frame Epoxy Support Setup’ titled “Revision 2”
Make updates to the epoxy jig assembly with improved design
Confirm assembly revision with Saheed Quadri
Save file and check in drivetrain assembly