Yoonseo Log

Future

CNC Circuit Mill V2

CNC Multimachine

Universal Power Supply

Encoder Test

Mini Clamp

Battery Holder

Visual Display Module

Software Dev

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Computer/Server (info processing) Tech

Bioscience Devtech Build/Get and Deploy

Chemical/Materials Science Devtech Build/Get and Deploy

Metal casting/forging Devtech Build/Get and Deploy

Laser Tech

Satellite/Telecom Tech

November 2012

6/11/2012

240VAC Extension Cord... done

Food trip with Parker... done

TIG Welding Setup Video... done

CNC Torch Table mechanical assembly finishing... done

Fabricating stove interface...

Ordering LIN steppers...

Researching iron suppliers...

Ordering screwdrivers...

Light screen frame only partial. Need to get frame metal from sweiger...

5/11/2012

Sweiger Trip for powercube/lathe accessories + stove metal. Done. Sweiger does not supply or have connections for iron.

Ordering more extension cords... 25ft x3, 50ft x2, 100ft x1 (Yellow Jacket from Amazon)... done

Ordering mass discrete component organizers... done

Wrapping up hospital bill... no response, message left.

Saw Blade Store response to order question... done. they were just confused with billing/shipping addresses

Septic system troubleshooting... fixed.

4/11/2012

Group clean Hablab!

Pictures for Light Screen, Trencher, Flashlight Mount

Light Screen from Josh missing a few parts - must search in Tristan's car...

CNC Torch Table Steppers' electronics interface wired up.

Set up camera tripod

Terminal Case interface with PCB mount...

Ordering HDPE plate for CNC electronics... done

3/11/2012

Tooling Plate fabrication preparation...

Terminal Case V3 welding... done - TIG welding aluminum isn't TOO hard...

We'll need to recharge our argon canister soon. Medium size canister is easier to transport, but must price check on medium and large refills.

Design, prototype, documentation Thermal Shield for TIG welding... done, done, and done

Preparing for next sweiger trip. Lathe/powercube accessories, iron for tooling plate, metal for stove door, pure argon gas refill... done

Must order edge finder (ex. from mcmaster-carr), but waiting on further items to optimize shipping.

Husking Walnuts!

http://www.cnccookbook.com/MTLatheCNCAccuracy.htm

http://www.gearsolutions.com/article/detail/5663/the-details-of-ductile-iron

Hinge redesign for stove

2/11/2012

New stove door design... mostly done.

Ordered aluminum bar for Terminal Case V3 construction (with welded seams for rigidity and waterproofing)

Tested and documented Trencher V1.5 with Aaron. It works pretty good!

Began TIG welding Terminal Case. Started using filler rod for the first time. The aluminum gets HOT. Don't touch it, even with gloves you will get burned. Cannot TIG weld continuously without heat shield. Must design heat shield for hand.

We need more 240VAC extension cords. Must order male and female plugs, as well as more large 3-strand wire.

Ordered 2 bandsaw blades

http://www.stepperworld.com/Tutorials/pgBipolarTutorial.htm

Stepper Motor considering: bipolar super torque steppers from Lin Engineering (http://www.linengineering.com/LinE/contents/stepmotors/5818.aspx)

Flexible shaft coupling considering: from http://www.mcmaster.com/#standard-shaft-couplings/=jzypil

Plan: organize drill bits

Plan: work on improving flashlight mount - magnetic mounting, adjustable angle

1/11/2012

TIG Welding tests... still no good. Grinded the aluminum and reduced the length of tungsten alloy tip sticking out to 1/8" but instead of puddling properly the aluminum totally melts underneath a film of oxide...

Bandsaw blade ordering [Emailed Parker and Marshall for previous bandsaw blade source]...

Thiel Fellowship monthly review... done

Thiel Fellowship annual update... done

Sweiger trip with Gabi for farmer's bank credit card form, powercube materials and TIG welding troubleshooting... success, success and success.

TIG welding aluminum test... success! Minor change was to mount the tungsten collet in the opposite direction. The major change was to ball the end of the tungsten by applying some high current 150-200A at ~50% AC balance to the tungsten tip but using copper plate.

Prototyped flashlight mount.

Past

Yoonseo Log 2012

<2/2012