My First Panel

I am trying out a place located in China for our prototype boards. I can panelize up to 6 2-layer designs filling 155 sq inches of panel for about $130 (includes shipping). This is about 1/6th of the price I currently pay here in the US. The lead time is only one day more than what I have become used to (6 days). If this works out I’ll be using them exclusively for all of our 2 layer prototypes. Anyways, here’s my first panel…
Multi-Panel Project

BBQ

I finally got around to building the BBQ and Firepit for my Mom. It pretty much took six full days (or nights). Everything is finished except for a coat of paint on the stucco and the coping on the fire pit. The fire pit really turned out sweet. I took all the left over flagstone pieces from my house, cut 1″-2″ strips and stacked them. Take a look:

Ma\'s BBQ

Ma\'s Fire Pit

Temperature Logger Test

Today Billy and I tested out the 8 Channel Temperature Logger on his “devices”. We rigged up two of them with 4 thermocouples each, shoved them in the oven and proceeded to heat them to 100C. We then removed the two from the oven and allowed them to naturally return to ambient conditions. Below is a shot of the set up in Billy’s gourmet laboratory.

Temperature Logger Setup

Anyways, it was a total success. Take a look at the data. The data is very clean (no anomolies). There is a distinct difference between the two “devices”. You can see that the first four series lag the second four series (heating and cooling). This is because the thermal mass of the first “device” is greater than the second. The second has cooling fins milled into the face. There are a few discontinuities during the heating but this is related to the control system in the super advanced heat chamber (kitchen oven).

Temperature Logger Results