Overview of Status of Analysis, Design, Fabrication, Tests, etc.
The cradle fabrication has started, top portion welded together. On Monday May 13 the team is planning to have the large quarter inch steel cut into pieces for the bottom of the cradle as well as the plates that the casters will be bolted to, which will be welded to the frame tubing. The outside machinists who were originally going to build the frame have ordered the parts, current plan is to pick up the material from them, if not the team will go to Industrial Metal Supply to pick it up, to minimize the wait time for delivery. The fasteners and battery will be purchased locally.
Awaiting shipment of Casters, Shaft, Bearings, Raw Steel from outside Machinist, Hydraulic kit.
Accomplishments from Previous Week
Dev - Picked up parts for cradle, began fabrication of top portion of cradle, and spoke with multiple machinists to find water jet to cut quarter inch metal.
Josh - Completed oscillating cylinder engine analysis and presented to sponsor and instructor. CAD multiple parts for final design.
Romulus - CAD multiple parts for final design.
William - Spoke with Steve Roberts regarding the switch for battery that wouldn't allow the pump to operate without the outriggers being fully extended.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Dev - Pick up materials, fabrication and assembly of frame.
Josh - Work with machine shop in fabrication of components. Work with Romulus on the 2nd draft of Report and the Final Class Presentation.
Romulus - Complete 2nd draft of Report, Finalize CAD and Final Class Presentation. Fabricate and assemble parts as needed.
William - Complete Hydraulic Assembly, to include hoses and battery set up.
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
From Sponsor Meeting on May 8.
Go with the bottom driven design. Presented both oscillating cylinder motion and bottom driven method.
Additional cylinders are okay (more than 2), but be aware of requirements for those additional cylinders.
Forks: Fork extensions okay, could we possibly lift with one fork?, Look into building up on top of the fork (a large mass that will create constant contact with the base of the cabinet and the fork). Distance from ground to section of cabinet is 5.715 cm (2.25 inches).
No problems with outside machining.
Set cradle bearings as close as possible to the frame bearings, also try to keep the hydraulics in-line with cradle bearings.
if using top-driven, look into grabber (will only grab the closest lip of the cabinet), if using bottom driven, use forks.
Look into placing a first class lever in between the hydraulic cylinder and the crank arm for the oscillating cylinder motion. AT: noted, if time allows will perform analysis.
Loan Agreement for Test Cabinet is currently being routed through Teradata, hoping for delivery by Tues. May 14, or soon thereafter.
On-board charger for the battery.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
From team meeting on May 6:
Submit new analysis by May 9. AT: Completed, submitted May 8, 2013.
Fix the report.
Change to 1" margins, Executive Summary (1 page, How, Why, Results), Past Tense, Metric, Annotated Figures, Limit Repeating in body of paper, more figures/annotations, MLA format, Equations/FBD connections, Full page for eliminated designs.
Run all designs by the machine shop. AT: Completed on May 8, all fabrication will be in-house.
Find battery characteristics, voltage vs charge level, previous design.
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 system and shaft alignment.
Lack of parts coming in on time.
Resources or Information Required but not Available
Status of Sponsor Parking Permit for May 14, submitted to J.V. on May 9 and Isaiah on May 9.
Schedule
The majority of the parts are scheduled to arrive this week, fabrication will be constant as the parts come in. Planning for testing, no load or empty cabinet by May 20.
Budget (list amount spent and amount remaining)
Spent = $1,434.41, Remaining (from $7,000) $5,565.59
Progress on Report and Webpage
Report is being revised following the feedback from the Instructor meeting on May 6. Webpage is updated weekly.