Funded! This project was successfully funded on January 20, 2012.

Update #35

Calling All Contacts

Hi Backers,

We’ve just been informed that the programmer/software developer who was supposed to be coding our GUI is currently facing an unexpected and dire personal situation which is affecting his ability to work on this project.

Consequently, we’re searching for a new software/firmware engineer who will be able to carry the coding of the project through to completion. (The software and board design are currently being done by the same company. They’re still approaching completion of the board design, but it looks like we’ll need to bring someone else on board for software development.)

The design firm is searching, and we’ve reached out to our various alumni/professional networks, but you guys are pretty much the best network of people who know about the project and have an interest in seeing it completed quickly and competently - so we’re issuing a call for help!

We need a firmware engineer with experience in GUI programming/development, who is familiar with the LPC1788 and IAR Embedded Workbench for ARM. Someone in Atlanta or the southeast is ideal, but not required. Familiarity with espresso machines would be great, but we know that’s a tall order.

Shoot an email to info@zpmespresso.com if you or someone you know fits the bill, or if you have any other questions.

Meanwhile...

We’ve been pulling shots on the machine for an hour or two, and it’s looking good (at least the machine is; we’ve gotten a bit rusty). Something to note is that, currently, the pump PID is set in 10 increments from on to off, so the pump sounds a little choppy. Since the resolution of pump rates is so low, you can clearly hear what’s going on. The pump pumps at a rate bringing the pressure up to 9 Bar, stops pumping as it’s about to overshoot, and starts pumping again as the pressure drops slightly. The result is that the pressure and flow rate throughout the shot remains in a narrow range.

Ultimately, the number of increments will be higher so there will be less of the “on-off” feel of the pump, but this is a good acoustic representation of how PID works.

Thanks guys!

Igor, Gleb, Janet & Rachel

Comments

    1. Missing_small

      Creator Will P on December 5, 2012

      Did that color update you had mentioned get postponed? I remember there were one or two colors you were still waiting on, have you gotten any new test shells?

    2. Zpm_logo-01.small

      Creator Gleb Polyakov and Igor Zamlinsky on December 4, 2012

      @Jesse We're still waiting to hear back from a few. We had 4 tell us outright that they couldn't do it anywhere near our desired timeframe, and a few more who couldn't start until February, which, based on the estimation from the current developer, is when they'd be just about finished with the work anyway. We're still holding out hope for the final few quotes. In the mean time, the current developer continues to make progress, just at the rate of 20h/week instead of the 40-60h/week he'd been putting in previously. When we get these last few quotes back, we'll try to put out an outline of the final few months of the project with attached target dates.

    3. _mg_8367-edit(small).small

      Creator Jesse Slaton on December 3, 2012

      Has there been any progress with contracting another developer?

    4. Zpm_logo-01.small

      Creator Gleb Polyakov and Igor Zamlinsky on November 26, 2012

      @Kyle Couldn't hurt! Feel free to send them our way (info@zpmespresso.com).

    5. 24144_866512145613_6236449_47030831_2664512_n.small

      Creator Kyle on November 26, 2012

      I've got a lead, one of my ol' ex google buddies, I'll get you guys in touch. That is if you're still looking

    6. Zpm_logo-01.small

      Creator Gleb Polyakov and Igor Zamlinsky on November 23, 2012

      @Damian It's roughly 4in, give or take (obviously using a naked portafilter gives you another 3/4in or so, and the double spout takes away a little height). You can kind of shimmy a taller cup in, though, as long as it's big enough to fit around the spouts.

    7. Img_2313.small

      Creator Brian C. Thayer on November 21, 2012

      I'm super pumped. Videos like this are what make the extra year's wait bearable. So what if I waited (on average) an extra 1/35th of my lifetime for the machine. Quality products are worth it (no sarcasm intended).

    8. Missing_small

      Creator Damian Scisci on November 13, 2012

      Lovely tiger striping. Just want to say that I love the clearance under the group. My current machine is so tight in there that I'm always on a wild goose chase for cups I can use to make capos or lattes with that I don't have to pour from shot glasses to use. We're talking 6oz cups here, not buckets. Can you tell us the dimension from drip tray to bottom of portafilter handle? And good luck with a new coder. Sorry to hear about your current one's situation.

    9. Zpm_logo-01.small

      Creator Gleb Polyakov and Igor Zamlinsky on November 13, 2012

      @voidref Right now it's a contract position, not full time.
      @George It is high up. Much lower and we started having problems with steam wand accessibility. Lowering also reduces the volume of the water tank the way we have it set up, and we wanted to ensure that people who do use larger receptacles could still fit them in the space. We've started thinking about a modified drip tray cover that is raised in the middle to hold a smaller cup closer to the spout, if that's your fancy.
      @Mark It was. It was also recorded from a Galaxy S, so the audio/video isn't necessarily state-of-the-art. Gleb had it right next to the machine as the shot was going. We also had the lid off, and things in this prototype aren't as secured as they will be, so they rattle around a bit more. The ultimate result should be close to the sound level you're used to in a home machine.

    10. Fb_profile_picture.small

      Creator Mark Bergman on November 13, 2012

      Was that recorded from the user's position? It seems very loud so Im hoping you ha the mic very close to the machine.

    11. Fb_profile_picture.small

      Creator George Chiesa on November 13, 2012

      Not luring, pouring, sorry iOS spell checker typo

    12. Fb_profile_picture.small

      Creator George Chiesa on November 13, 2012

      Sorry for the guy. Great pun intended "tall order", a kick from KickStarter to Starbucks's tall
      Now seriously, talking of which, are not luring the coffee from too high up? Too tall?
      Professionals pour small cups gently into larger containers, to avoid loosing the foam...

    13. Missing_small

      Creator voidref on November 13, 2012

      PS: Sorry to hear about your guy, I hope things work out for him.

    14. Missing_small

      Creator voidref on November 13, 2012

      Is this a full time position, something 'after hours', or a contract position? I know at least one guy over there, but I don't think he does contract work.

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