kproche: (Jungleboy Transparent)
Tomorrow I'm honored to be a panelist on Talking to the Future, an all-day event at the Computer History Museum.

We'll be talking to 100 high school students about what got us started in technology and science, putting on our own little maker fair for the kids (and yes, ThinBot will be represented, somehow*) and then each of us doing breakout sessions with 20 of the students.

Apparently my mohawk gave their art department some difficulties when posterizing my headshot.

So it (the mohawk) will obviously have to be up in one form or another tomorrow.

Spoilers... )
kproche: (Jungleboy Transparent)
The one last thing I'd hoped to add to ThinBot for Robogames this year was motion, to swing the glass in and out from under the spout, making it easier to place a glass and pick up the finished drink.

I'm happy to report I got it working!

Photos and Video under the cut )
kproche: (Jungleboy Transparent)
Last night I got pumps 9 and 10 wired and mounted. They will cantilever off the back of ThinBot's frame to be less obtrusive.

Photos under the cut )
I also got a 5.5V current source wired up, on the off chance I get a servo for the arm installed and working.

I'm planning to put the whole shebang together tonight to make sure it all fits :-)
kproche: (Jungleboy Transparent)
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.

Pix under the cut )

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.
kproche: (Jungleboy Transparent)
Today I finished milling the new glass stand for Thinbot, and test assembled it. I still have to wire up the switch and update the code to recognize it.

Pix under the cut. )

I probably don't have time to get it anodized before the show, but it looks pretty good in its natural silver.

Oh-- I also ran the pressure test on the heat exchanger now that it has had a chance for the sealant to cure. No drips after running it for an hour!
kproche: (Jungleboy Transparent)
I've made the first pass with the milling machine on the glass rest. It now has a slot to pass the stem of an up glass or other stemware.

photo under the cut )

I should get everything done on time. I also made a quick pair of small outrigger panels to hold two more pumps.
kproche: (Jungleboy Transparent)
Yesterday I did a complete assembly of the heat exchanger. It's so shiny :-)

Photos under the cut )

Today I try to finish the glass rest and panels for two auxiliary pumps
kproche: (Jungleboy Transparent)
The parts came back from the anodizing shop. I'm really pleased.
photo )

While I was waiting, I started machining the new glass holder:
More machining! )
kproche: (Jungleboy Transparent)
I've been working on a replacement chiller (heat exchanger) to replace the steel-tubes-through-cocktail-shaker assembly on the front of ThinBot. I just dropped it off at PK Selective Metal Finishing to be blue anodized.

Before I could do that, though, I had to do a test assembly to make sure it actually went together.

Photos under the cut )

I did a compatibility test last week to make sure that neither the lime juice nor cranberry juice will react with the aluminum. Everything turned out fine.
kproche: (Jungleboy Transparent)
One of the upgrades I finished in time for BarBot: Automatic! 2013 was the artwork for the pump-mounting panels on ThinBot. This was done by trimming the panels to the right height, then masking each panel with adhesive vinyl (Cut on the CNC vinyl cutter at TechShop SJ) and sandblasting. The result looks like a fusion of white milk glass and shiny metal. I'm very happy with it.

The design is based on a motif from a Art Deco font I found, re-drafted to have proper symmetry and sharp edges. You'll notice the pump numbers are part of the design, as well.

ThinBot's Deco Shininess... )
kproche: (Jungleboy Transparent)
I know there are plenty of options for your entertainment dollar this weekend, but if you like cocktails and robots, you might want to get tickets to one or both nights of BarBot 2013

It's at a new venue this year, SomArts (, but the organizers fully expect it to sell out. Tickets are $25 in advance. Note the show was just moved up (yesterday) to 7pm-12 midnight for both Friday and Saturday

That's Friday March 1 and Saturday March 2, to be perfectly clear.

ThinBot will be there, looking quite a bit shinier than at his debut at BarBot 2012 (and there have even been upgrades since Gallifrey, if you saw him there).    
kproche: (Default)
ThinBot (and yours truly) have been invited to appear at an event sponsored by Swissnex SF:

Monday, May 21 6:30-10pm


Apr. 20th, 2012 10:23 pm
kproche: (Default)

ThinBot took the Gold!

Posted via

kproche: (Default)
Here are a couple of photos of ThinBot after installing the full-length food-grade Norprene tubing.

photos under the cut )

I also did a quick calibration test of one pump, it delivered almost exactly the 100ml requested. The new hoses also maintain better vacuum back to the pump, so the nozzle drips almost not at all when dispensing ends.

Next step (this weekend): build the bell ringer and glass detectors, which are not necessary for ThinBot to perform properly but will definitely add some zing.
kproche: (Default)
Having identified the interference problem with the pump motors, I took a break and built a new cable for the control unit.

pix under the cut )

I also mocked up the design for the new mounting panels:

more pix )

Satisfied that the new design would work, I set out to build it, and assemble the works:
building the new pump head assembly )

Next post: assembled with new hoses.
kproche: (Default)
The Anko pumps are much beefier (over a pound apiece), so I got a new set of panels and set out to rebuild the pump head portion of ThinBot, with blue LEDs behind each pump rotor.

Everything looked great until I tried to assemble the four panels into the head assembly and discovered that the pump motors collided with each other.

Along the way, I figured out a bunch of things for the second attempt, so the effort was not entirely time wasted.

Photos under the cut )

As I said, back to the drawing board.
kproche: (Default)
Photos of some of the new pumps from

images under the cut )

I just have to cut the replacement top panels and I can start rebuilding ThinBot with these new pumps!
kproche: (Default)
OK, now I have a tracking number for the pumps from Anko products.

Scheduled delivery tomorrow.

Fingers Crossed!
kproche: (Default)
The custom pumps should be on the way (Anko Products finally charged my account, but they haven't given me a tracking number).

The pump package that arrived was a free debris screen for the fountain pump I use for the chiller circuit, in thanks for registering the product warranty with the manufacturer.

On the other hand, the Robogames acted on my request and has officially changed my team name to the Drinks Advanced Research Project Agency X)
kproche: (Default)
I just got notice that the better*, custom, peristaltic pumps I ordered for ThinBot in December have finally shipped from Florida, delivery tomorrow.

Too bad Barbot was 3 weeks ago. On the other hand, this means they can be installed for the actual competition at Robogames.

*Well, we hope better. Certainly designed for more demanding service than the aquarium dosing pumps I've used as backup.

March 2016

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