Date: October 29, 2012
Project Name: Biaxial Tissue Stretching Device
Group Number: 30
Group Members: Krista Vedvik, Christopher Zarins, and Joshua Leibowitz
Current status of project:
All major design alternatives have been considered and analyzed via Pugh Charts. The best design was determined to be one in which two sets of linear rails for each axis are mounted above the bath. Support plates attached to carriages along the linear rails will linearly move via a threaded rod drive mechanism and stepper motor aligned along each axis and will thus translate worm gear movement to membrane stretching. Optical accessibility and ability to stretch multiple membranes in parallel were considered in drafting a rough rendition of the final design. The progress report is finished in content and remains to be professionally formatted.
Work completed in the last week:
· Fully-fledged design alternatives
· CAD renditions of all design alternatives
· Completion of finite element simulations to determine the best fixation mechanism
· Upper bound motor force calculations
· Research on properties of possible part materials
· Moment calculations regarding variations of the final design
· Vertical displacement calculations regarding single lever arm design
· Updated team member responsibilities
· Updated design schedule
Work planned for next week:
· Professionally format progress report
· Further research on threaded rods and stepper motors
· Linear rails/materials quotes
· Development of culture medium support system/research on machining parts
Anything needed from client or TA or instructor to continue work:
No
Project Name: Biaxial Tissue Stretching Device
Group Number: 30
Group Members: Krista Vedvik, Christopher Zarins, and Joshua Leibowitz
Current status of project:
All major design alternatives have been considered and analyzed via Pugh Charts. The best design was determined to be one in which two sets of linear rails for each axis are mounted above the bath. Support plates attached to carriages along the linear rails will linearly move via a threaded rod drive mechanism and stepper motor aligned along each axis and will thus translate worm gear movement to membrane stretching. Optical accessibility and ability to stretch multiple membranes in parallel were considered in drafting a rough rendition of the final design. The progress report is finished in content and remains to be professionally formatted.
Work completed in the last week:
· Fully-fledged design alternatives
· CAD renditions of all design alternatives
· Completion of finite element simulations to determine the best fixation mechanism
· Upper bound motor force calculations
· Research on properties of possible part materials
· Moment calculations regarding variations of the final design
· Vertical displacement calculations regarding single lever arm design
· Updated team member responsibilities
· Updated design schedule
Work planned for next week:
· Professionally format progress report
· Further research on threaded rods and stepper motors
· Linear rails/materials quotes
· Development of culture medium support system/research on machining parts
Anything needed from client or TA or instructor to continue work:
No