Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Completed carriage assembly and working on machining motor, pulley, belt mount assemblies
LabVIEW to Arduino communication established.
Belt should arrive Thursday 5/8/2014, motor shaft coupling needs to be ordered, non-magnetic screws need to be purchased.
Limit switches and fiber optics need to be tested and finalized.
Accomplishments from Previous Week
Verified NEMA 23 stepper motor RF noise is acceptable.
Completed carriage assembly, proof of concept for drive system and control system
MAE 156A snap-acting switches have a magnetic component which is unacceptable if close to bore entrance.
Finished CAD model of prototype.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Finish machining drive system mounts (motor, pulley, belt), and complete drive system assembly (5/12-5/13, Ola, Sally)
Complete most of controller GUI / VI (5/15, Brian, Alex)
Finalize fiber optics and PCB (5/15, Alex)
Purchase and test AC-12 limit switches (Progressive Automation) (Brian)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Aluminum and/or stainless steel is OK
Table surface needs to be laminated (or bleach wipe-able)
Must include an emergency stop
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Test purchased stepper motor in MRI room for RF noise
test was conducted, no significant noise from GeckoDrive G723-400-4 while holding position, disabled, and/or off
Optocoupler / Optoisolator
It is used to isolate two circuits to prevent damage to opposite circuit if one short circuits
Is usually a small component, the reason we need fiber optics is to avoid noise from inside the room and to avoid long copper wires.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
None
Risks and Areas of Concern
Current sensing components and implementation
Fiber optics still needs to be sorted out and finalizedÂ
Resources or Information Required but not Available
Current Sensing Components that are not based off magnetic field
Schedule
Complete drive system assembly.
Complete GUI / VI for control system.
Gantt Chart updated.
Budget (list amount spent and amount remaining)
Spent $298.86 of $1500
Total Remaining $1201.14 of $1500
Progress on Report and Webpage
First Draft was completed and uploaded to the website.
Webpage homepage was completed.