Versions Compared

Version Old Version 3 New Version 4
Changes made by

Emily Guo

Emily Guo

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Steering columns will have to use splined stock to maintain rotation between the wheel and all components when the steering column collapses (and to connect to u-joint). 
  • All shafts below the rack will have to be threaded to connect to components since they need to be threaded, the shafts should be made of steel. 
  • All other components in the system can be made from aluminum. 
  • Probably going with the nylon shear pins we had on MSXII, unless better alternatives can be found

Plan Going Forward 

Task/ComponentAssigned toDetails
Steering Arm Edward WangCurrently using placeholder shape for steering arm, will likely be that size and shape, requires a connection between SA and upright.
Steering column AnnaDetailed cad of connections/spline
Steering column mount
Larry Li (??)
AmbreenSteering column requires mounting solution to horizontal chassis member that runs across the driver side. Jig needs to be attached to the chassis such that it can shear off the chassis member when the steering column collapses.
Centrelink/rack extension bearing mount
Henry Wu (??)
AnnaTwo L shaped brackets going around the firewall chassis member; used to secure the linear bearings to the chassis. Where to mount, figure out shim dimensions.
Rack mountingAmbreenRequires coordinating with chassis to punch two holes through the chassis member behind the rack, will also require shims to attach rack to chassis.
Steering wheelAdrianSpec out steering wheel + quick release mechanism (~$40), the quick release mechanism from MSXII could possibly be reused. 
Ackermann geometryEmily/Jose
Loading condition calculations/FEAJoseAs per Jose; the current system is indeterminate. To do loading calcs, it will be best to assume a rigid suspension + break the force analysis down component by component. After this is done, components dimensions can be locked.
Fastener selection
Currently, the CAD contains a variety of fasteners/threads of different sizes (imperial and metric) best to narrow these down to common sizes so assembly and repair can be done easier. 
Improve CADChris WangAdd in appropriate details in the cad such as fasteners and splines on the column, etc. Coordinate with whole team.