Chris Lee's R2-G4: 08/01/2008

Georgia girls

Hollis, Ashley and friends loving on R2
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Chris Lee (Sent from Treo 700p)

Dalek work

Working on the dalek at the R2 table at dragoncon
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Chris Lee (Sent from Treo 700p)

chicks dig R2

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Chris Lee (Sent from Treo 700p)

Business cards for DragonCon

Came up with this simple business card layout so I can have some cards to give away at DragonCon at the R2 Builders table. People always ask for them.

The background image is one of when R2-G4 was completely disassembled and spread out on the work table.

Labels: dragoncon business card

More steampunking

Most of the body panels - especially those with blue areas - are being clad with thin copper foil sheeting. I'm using the same foil that roofers use for flashing under shingles. It comes in a 10" x 25' roll. No need to
adhere it, just bend the corners around and work it into the seams and creases with a dull wooden stick.

Steampunking R2 for DragonCon

Everything blue will become copper or bronze. These are spare resin booster covers - don't worry, the aluminum ones are safe...

NPC 2212 motor dissasembly

Pulling the NPC motors apart to install the MOV and capacitors.

Adding RFI capacitors to NPC 2212 motors - 2
Originally uploaded by chrislee007

motor core exposed

Adding RFI capacitors to NPC 2212 motors - 3

From the Vantec motor controller manual:

"A MOV should be installed directly across the motor brushes and a .001 ufd ceramic disc capacitor directly across each motors brushes and between each brush and their motor case for RFI protection."

When you buy a Vantec controller you get a packet of components: two MOV's (metal oxide varistor) - they are black and shiny with wire leads, and 6 to 8 ceramic disc capacitors - they are small and tan colored with wire leads.

I disassembled the NPC motors, and soldered the components across the brush terminals as instructed.

I get virtually zero RFI now, whereas before I did the procedure, my audio system would hum and squeal every time I moved the joystick to apply power to the drive motors.