Yoonseo Log

5/1/2012

• Worked on circuit mill conceptualization. Full conceptual design v1 established.

• Weighed major frame component decison, tubing vs angle. Square tubing established for the following advantages: easier match drilling, good angle template compatibility, resolution of Y-Z and Z-Spindle integration. Disadvantage: Motor mounting requires other structural components (ex. bar, angle), clamp required for bar template compatibility.

• Researched component availability to aid in integrated circuit mill development. Reduced number of source required.

• Weighed component uniformity for greater interchangeability among components. Established as worthwhile, but actualization requires available sourcing. Consequence: attaining certain tools (ex. drill bits) established as worthwhile for the following advantages: greater boundaries of design that aid in meeting OSE specifications, and cost reductions that result from such (ex. modular) designs within a rapid prototyping process.

4/1/2012

• Worked on ensuring cnc circuit mill frame alignment. Frame alignment strategy established.

• Worked on revised bill of materials for circuit mill

• Worked on conceptualizing/streamlining manufacturing process

3/1/2012

• Worked on ensuring alignment for the cnc circuit mill manufacturing process. The use of templates and drilling through multiple components at the same time are the main methods. The discrete sections include XYZ axes, frame, platform, spindle, Y-Z integration, and Z-Spindle integration.

9/23-30/2011

• Researched Oscillators

• Researched Operational Amplifier Design

• Researched Power Inverter Topologies

• Established General Circuit for Power Inverter

9/16-23/2011

• Researched CEB Floors

• Researched and identified sources of nickel-iron batteries

• Researched power inverters

9/12-15/2011

• Mostly focused on acquiring, semi-assembling, and shipping to FeF partial electronics for CEB Press operation.

9/6-12/2011

• Continued research and development for dairy milker

• Continued research and development for bakery oven

• Continued research and development for microcombine

• Continued research and development for industrial robot

• Continued research and development for spader

• Continued research and development for seeder

9/6/2011

• Started research and development for dairy milker

• Continued research and development for bakery oven

• Reformatted research and development for industrial robot

• Started researching proportional integral derivative control loops (summing functions)

• Added some hydraulic item sources to industrial robot bill of materials

September 4-5, 2011

• Uploaded improved control system diagram for industrial robot

• Uploaded improved structural system 3d drawing for industrial robot

• Learned how to apply a combination of firmware and HAL to custom machine control with help from cncbasher

• Researched slewing bearing sources

• Uploaded exemplary design information on bakery oven after discussion with bakery owner friend

• Edited google spreadsheet sourcing information for industrial robot

• Started HAL file creation for industrial robot

• Uploaded intro video

September 3, 2011

• Identified alternative slewing bearing applications in the industrial robot structural system

• Started 3D CAD Drawing of industrial robot structural system

• Discussed 1-axis testing resources in #emc

August 31-September 2, 2011

• Contacted continentalhydraulics

• Contacted Parker Hydraulics distributors for technical drawings/motor characteristics

• Worked on DPV documents/media

• Discussed software-side of control system on #emc for starting on HAL and INI files

• Received firmware files from cncbasher

• Designed functional structural system

• Started enhanced Industrial Robot bill of materials with google spreadsheet

August 27-30, 2011

• Contacted HydraulicHouse for vane motor technical drawings

• Contacted HydraulicsPneumatics for technical information

• Contacted Parker Hydraulics for technical information

• Contacted a hydraulics consulting organization for technical information

• Uploaded hydraulic circuit in Industrial Robot Research/Development

• Researched Slewing Bearings

• Started enhanced structural design concept creation for the industrial robot

August 26, 2011

• Contacted hydraulic motor sources for availability and pricing information

• Contacted Mesa Electronics for availability, compatibility, and pricing information

• Worked on detailed systems engineering diagram including software and hardware interconnects

August 25, 2011

• Researched FPGA development pathway for the industrial robot control system

• Identified proportional valves and analyzed a source for sample pricing

August 24, 2011

• Researched PID cards

• Researched alternative flow control methods

• Researched alternative software-hardware configurations for the industrial robot

• Improved gearbox design (lower weight)

• Researched methods to improve step motor characteristics

• Contacted various hydraulic motor suppliers for technical information

August 23, 2011 and Before

• Designed Industrial Robot and uploaded bill of materials and manufacturing instructions (work in progress)

• Researched encoders and quadrature counters (resolution up to 1.25 million cycles per revolution with 4MHz operation)

• Researched Denavit-Hartenberg parameters, emc2's genserkins and HAL (control system information)

• Researched hydraulic motor types and characteristics (gerotor, vane, external gear, axial piston, radial piston)

• Discussed ball and roller bearings with logari81 (raced or full complement, lubrication, material properties, conventional and alternate designs)

• Discussed emc2 use for the industrial robot with andypugh and PCW (HAL, operating bandwidth, corrective delay, control software-hardware compatibility, options)