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10 April 2013 @ 11:12 pm
ThinBot progress  
Today I made the nozzle jets for the heat exchanger. The final 2" is bent (electropolished=food-safe) stainless 1/8" OD tubing. This constriction at the end of the line (the rest is all 3/16" ID) should accelerate the ingredients into a set of streams that mix better in the glass.

nozzle jets, side view
nozzle jets

I also got the glass-detection microswitch wired up and the code now recognizes it properly.

In addition, pigtails permitting two additional pumps have been wired in. The code has already been updated to make use of them if desired.
Lady Celialadycelia on April 11th, 2013 02:09 pm (UTC)
So the machine will recognize what kind of glass is in it?
Kevin Rochekproche on April 11th, 2013 04:29 pm (UTC)
No, but it will recognize the presence of a glass, and not pour a drink onto the table (which has happened on occasion, when users were SO EXCITED to be ordering a drink from a robot that they hit "go" without ever putting a glass in place).

Since the new stand is designed to put the bowl of the glass at pretty much the same height regardless of type (except Collins glasses), all I have to do is aim the jets properly.

In theory.