Overview of Status of Analysis, Design, Fabrication, Tests, etc.
The outer portion of the frame has been assembled, the top portion of the cradle has been assembled. The fabrication process has produced a few hiccups that have called for minor and major redesigns. Minor redesigns are increasing thickness of spacer plates for the bearings and casters, and adding points to attach the straps. Major redesigns have included shifting from a fork-lift model of picking up the cabinet to a design that grabs the lower portion of the cabinet, where it is made of quarter inch steel, and lifting it from that point. The hiccups have set us back in our timeline, but the major concerns are not receiving all of the hydraulic equipment in time.
Accomplishments from Previous Week
Dev - Cleaned and prepped frame and cradle for welding, purchased multiple raw materials,
Josh - Fabricated Bearing spacer plates, designed new lip grab support including stress analysis, purchased fasteners,
William - Ordered Hydraulic cylinder, straps of the cabinet, and purchased the battery, researched into hydraulic assembly.
Romulus - Worked on Presentation, 1st revision of 2nd draft of report.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Dev - Fabricate/Machine the rest of the device, including finishing caster plates, hydraulic mounts, battery mount, and pump mount.
Josh - Fabricate/Machine the rest of the device, including finishing caster plates, hydraulic mounts, battery mount, and pump mount. Collect quotes for Powder-Coating.
William - Assemble hydraulics to include connections to battery and switches.
Romulus - Finish 2nd draft of Report.
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Sponsor Comments from Meeting on May 14, 2013
There was an idea of creating a handle to push the device around when fully unloaded with the cradle in the lowered position, the sponsors stated to make that the absolute last priority.
Modify the bottom of the cradle to allow for lip grabber instead of forks. AT: Designed and in process of fabrication.
Add room for larger battery or even a 2nd battery. AT: A large battery has been purchased, the design of the mount is in progress.
Make outriggers non-removable, install switches to not allow operation of pump without the outriggers fully extended. AT: Noted and in progress.
Received contact information for powder-coating company to have the device powder coated prior to delivery.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
From the Instructor meeting on May 13, there were no major comments to address, just ensure that we stay on schedule and be ready for hardware demonstration for week 9/10.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
None
Risks and Areas of Concern
Hydraulic assembly not operating as designed, the inability to control the time and smoothness of the tilting motion.
Overall device not operating as designed.
Materials (hydraulics pump/operator) and parts ordered not arriving on time, the lack of tracking capability is a major problem.
The weight of the device exceeding predetermined levels.
Resources or Information Required but not Available
Schedule
Describe upcoming milestone: Arrival of the hydraulic pump and testing by the end of week 8.
Update Gantt chart.
Budget (list amount spent and amount remaining)
Spent = $2,743.34 ; Amount Remaining = $ 4,256.66
Progress on Report and Webpage
The 2nd draft of the report is in its revision phase and will be completed on time. The majority of the webpage will be completed after successful testing of the device, then we will be able to focus on collateral tasks.