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Thread: Decent Espresso Machines (DE1) - Any thoughts?

  1. #901
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    Quote Originally Posted by gc View Post
    I read somewhere of research into user response to screen UI's [sorry, can't remember the source] and they found that people took longer to respond (eye movement), and navigate modern style UI elements than more traditional ones. The reason was/is obvious of course, in that the UI elements in eg Microsoft and recent Android iterations have only vaguely defined edges to the UI elements requiring the brain to do more work to interpret the sensory input accurately. So its not just the colour saturation, although that definitely helps, but clear outlines around each UI element which is easier and faster for users to respond to, despite not looking as "trendy". So which wins - form or function?
    I suspect you're referring to this study by Nielsen Normal Group:
    https://www.nngroup.com/articles/fla...e-uncertainty/

    I read that article when it came out last september, and added subtle drop shadows to all the "tappable controls", as well as doing the same on the decentespresso.com web site.

    I've been a fan of Nielsen for 20 years and we've corresponded. He's used some of my software (Lyris) and written about its useability:
    https://www.nngroup.com/articles/mai...ist-usability/

    Quote Originally Posted by gc View Post
    A high contrast option for the visually impaired might be an idea too. (That includes me until after my first coffee of the day! ) The higher contrast option is definitely easier to see, but that may partly be due to viewing on the computer monitor.
    The "Green Cups" optional DE1 skin was designed to be BIG and easy to read for less-sighted folks. My plan is to make another, even more constrasting skin in the future.

    screen 2018-01-10 at 12.17.01 PM.jpg

    However, this skin was also meant to be useful if you were blind, because the tap zones are 1/3rd of the screen each, so you can find them by placing your hand on the tablet and using your thumb. The power off and settings buttons are each in a corner. The Settings page is not currently available in a sight-impaired version -- my feeling is that someone with better sight can perhaps set the machine up for the sight impaired user.
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    Quote Originally Posted by gc View Post
    Maybe I have a faulty download. Just tried it again in a Windows 10 64bit VM and Windows Defender immediately quarantined the .exe!
    Windows Defender did not like the previous version, that had an EXE file. The current download no longer has an EXE and uses a .BAT file instead.

    Quote Originally Posted by gc View Post
    Edit: Forgot it was mentioned earlier to put download folder on user desktop to work. Did that and all working in Win10 64 bit VM, but had to remember to exclude folder before Windows Defender got to it! Same with Avira in my primary Win 10 machine before that.
    Sorry, can you confirm that Defender will NOT let you copy the *current version* to your Desktop? I can understand that it wouldn't let you do that with the .EXE (the previous version) but that's news to me that it has any problems with the current version.

  3. #903
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    Quote Originally Posted by decentespresso View Post
    Windows Defender did not like the previous version, that had an EXE file. The current download no longer has an EXE and uses a .BAT file instead.


    Sorry, can you confirm that Defender will NOT let you copy the *current version* to your Desktop? I can understand that it wouldn't let you do that with the .EXE (the previous version) but that's news to me that it has any problems with the current version.
    Sorry, perhaps I wasn't clear. All I was saying was that when I copied the old .exe download folder to my VM desktop, Windows Defender would snaffle the .exe file before I got to exclude it! The folder and contents copied just fine. I just had to stop Windows Defender stealing the exe. I realise there is a .bat download, but had already set WD to leave your .exe alone, which let me start the DE1+ UI from a desktop folder OK. So to confirm it wasn't the *current* version I was using.

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    Quote Originally Posted by gc View Post
    Sorry, perhaps I wasn't clear. All I was saying was that when I copied the old .exe download folder to my VM desktop, Windows Defender would snaffle the .exe file before I got to exclude it! The folder and contents copied just fine. I just had to stop Windows Defender stealing the exe. I realise there is a .bat download, but had already set WD to leave your .exe alone, which let me start the DE1+ UI from a desktop folder OK. So to confirm it wasn't the *current* version I was using.
    Ah, got it.

    So, the new .bat based download should work fine for you, right?

    And yeah, the .exe worked fine on windows 10, but Windows Defender thought it was a virus, so I am no longer using it.
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    Quote Originally Posted by decentespresso View Post
    When you hit OK on Settings, whatever profile you had made is saved as the "current profile", is active, and will survive an app exit/restart.

    However, your changes will not be saved to a "named profile" unless you hit the piggy bank icon.
    Your description makes perfect sense. However, it doesn't completely reflect how the app is working for me (as I interpret it).

    To avoid spamming everyone, I'll send you a PM with a better description of the incongruent behaviour as I see it, a set of steps to replicate, and any obvious options I see to address that are in keeping with your description. You can then determine if I have a point, or I'm just crazy!

    Appreciate the follow up - thanks John.

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    Quote Originally Posted by decentespresso View Post
    Yep.

    Whoops, sorry, missed it. Below...


    Apologies, this is a long answer, because your seemingly simple question isn't actually so straightforward to answer.

    tl;dr : use a scale under your shot glass, and stop the shot at your desired drink weight.

    On other machines (except for the gravimetric black eagle and linea ep, or volumetric machines) the machines use timers to make a single or double shot. This is not very reliable, though, because the state of your beans (grind/age/weight) will greatly change the final amount.

    Volumetric machines typically have a "record' button and they save the internal number of ml of water that was dispensed. This is very reliable in cafes, where only one dose weight is used. Cafes typically make double shots only, and save the "wasted" shots in a fridge for iced coffee drinks. This can also be reliable if you (for example, Italian style) always made singles with 7g of coffee, and doubles with 14g. But do home baristas do this?

    Gravimetric (weight based) machines are the best, because the definition of a single or double is based on volume in cup, and since 1g = 1ml (more or less) you can use a scale. The DE1+ has gravimetric as an option, if you buy our bluetooth scale:

    Attachment 18040

    To my knowledge, only two commercial machines (the linea pb and the black eagle), both top end, have the gravimetric feature. I don't know of any others with it (home or pro).


    So, to answer your question, here you go:
    1) the easiest thing is to use a scale. In fact, I'll go as far as to say that you'll likely never make excellent espresso without one. Measure your dose weight, and also your beverage weight.
    2) you can use a scale to set the shot time (or if you want to be fancy, water volume) on a preset you're using, and then save the preset. Then you can skip the scale, if you like (but I don't recommend it)

    I don't set the existing presets to give you single vs double, because there are too many factors at your home, that will make whatever attempt I make, invalid.

    Instead, all the presets in the DE1/DE1+ are set to run too long, and you're supposed to stop the shot when you have your desired drink volume.

    One last comment, there is HUGE disagreement about the "brew ratio", which is coffee grounds in vs coffee liquid out. Some people do 1:1x while others do 1:3x. Obviously, if your idea of a double is 18g of liquid, or 50g, will have a big impact on the shot profile.
    Thanks for the detailed response .... explained it well ..... use a scale !

    The function in the DE1+ with the DE scales will be great..... any progress on scales MKII ?

    Will the DE1 have a STOP function available in the API, appreciate it will not be in the provided skin ?

    My favourite skin is the Three Cups ... just simple, nice and clean.

  7. #907
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    Decent Espresso Factory Photos

    factory.jpg

    Here are a few photos from our new 3000 sq ft (about 300 meters squared) espresso machine factory, where we are starting to build the first 10 machines.

    We have most, but not all of the parts, but everything we ordered should be here in the next two weeks.

    However, as these are our first production machines, we also expect a few "whoops" where we realize that we forgot to buy some small part. This is part of the transition from R&D to production, and now everything has to be done "according to the manual", where we've been writing out and documenting everything little thing.

    As such, the first 10 machines will likely take a few weeks to make, but then things should speed up considerably.

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    Decent Status Report

    Attachment 18058

    1) as discussed here a year ago, we're not gluing the tablet stand to the tablet ahead of time. Instead, you'll peel off the wax paper and place the stand onto the tablet, as appropriate for your body height and tablet height. We're designing a die-cut plastified piece of paper to include, that will serve as a guide to help you center it (photo: bottom left).

    2) we've designed a plastic guide for our use, for gluing the hidden thin iron plate inside the chassis, which keeps the tablet invisibly in place with the magnetized tablet stand. The plate is a large enough magnet that adjusting the tablet (see above #1) still finds its place. (photo: bottom right)

    3) we're finalizing the part to assemble the "catering kit" for those who bought the plumbable DE1PRO+ machines. This is built from an aquarium pump, an LED, an RJ45 connector and cable, and a metal enclosure. Middle-left photo shows the in-house prototype, while middle-right photo shows the planned enclosure.

    4) the PC boards have not yet been delivered. They are finished and sitting in Shenzhen, but the manufacturer accidentally forgot to order one part, which happens to be the main AC power connector (photo: top right). Whoops. Next week, we should receive 10 finalized sets from them and give our approval for full delivery the following week.

    5) we're settling on what colors to assign to which thermometer cables (there are 6 in all) and we'll be receiving the final color-coded fiber tubing next week. (photo: top left)

    6) Two new people started this week (EE/technician Parry, and former seamstress Jennifer), while the two people who started last week didn't work out and are now gone. I had hoped that Jennifer's fine sewing skills would mean that her manual speed and dexterity was a transferrable skill, and that's been extremely the case. She's lightning fast and lead mechanical engineer has slotted her for more advanced tasks. We might be hiring more seamstresses in the future!
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    Crimping in Style

    crimping.jpg

    As we're focussing on building espresso machines faster, we're now paying attention to the steps that take more time, or that take a bit of skill (better if it doesn't) to get right.

    "Crimping" in our case means bending a small piece of metal around a wire. We have hand-squeezed tools to do this, but we're finding that our hands are getting tired.

    "thermal fuses" are a fire safety precaution, and they are devices which interrupt the flow of electricity if they reach a certain temperature. The tricky thing is that if the connection to the thermal fuse is not reliable, then your device will be unreliable too. And what's more, the wires have to be crimped, not soldered, onto a thermal fuse, because soldering is hot and can damage the fuse (whoops!) in the process.

    Today we're ordering two different crimping tools so that our connections are more solid and less fatiguing.

    For the thermal fuses, there's the big green machine in the photos. It takes a spool of copper wire, and (kind of like a sewing machine) wraps it around very lightly whatever you've put inside the loop.

    For the grounding tabs and the high voltage electrical connections, a separate machine is required. This one runs on an air compressor, is actuated with a foot pedal, and has various different bits you fit into it, for different kinds of crimps.

    These machines will arrive next week and should speed up this part of the process.

    FYI for machines from v1.2 and later (from August onwards) we plan on having about half of these done ahead of time for us. For example, the thermal fuses will be installed, with a thermostat, onto each water heater, by the new company that will be making those heaters for us. We will still have some crimping to do (so we'll be happy to have these machines) but about half as much.

    -john

  10. #910
    gc
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    Thanks for these continuing updates. All very interesting and something I can look back on when telling stories about my new machine.

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    Setting up the espresso machine tablet

    Screenshot_2014-12-31-19-06-22 copy.jpg

    The past 7 or so days for me have been about setting the included tablet to be as friendly and professional as I can make it. I've intentionally set things up different from a normal Android tablet normally arrives, so as to make the tablet experience a bit easier.

    Here are a bunch of choices I've made, that I'm open to changing my mind on:

    - the screen doesn't power off if the tablet is plugged in. That way, you can tap the tablet at any time to warm up the espresso machine

    - all Google related icons have been removed from the main screen. If you want to run other apps, tap the ... icon on the center bottom

    - a custom wallpaper is installed, with only one important icon, in the center.

    - you push the power button to wake the tablet. No gesture needed. This is just to simplify usage.

    - there is no requirement to have a Google Play Store account, nor to connect to wifi (though wifi is needed when/if you want to software update). Software updates are not automatic because you might feel that your machine is working perfectly well and that you don't want to change anything.

    - the tablet will arrive to you pre-Bluetooth-paired to your machine.

    - the tablet will arrive preconfigured (just power it on). At the moment, the tablets are set up to be in English, but eventually, I'd like to pre-set up the tablet to whatever language and time zone you used when ordering your machine from us.

    - there is a self-standing "Decent Update" program icon, on the bottom left of the screen. This will update your software. This same feature is available in the app. However, I realized that if I accidentally sent out a totally broken version of my software, you would have no way to update to a non-broken one. So, I've made this alternate "Decent Update" for that (hopefully to never occur) eventuality.

    - "show touch events on screen" is enabled, as I find it helpful to have little "ghost clouds" appear under my finger as I tap. If you disagree, you can change it.

    - the tablet is pre-rooted with a recent free version of supersu, and the kernel is not locked down ("adb" runs in root mode). The tablet is "hacker friendly".

    - the DE1 and DE1+ software is installed in /sdcard/de1 (or /sdcard/de1+) and not buried inside Android in a read-only location, in order to make it easy for you to find files and change things as you wish. Each tablet contains the full source code to the GUI.

    - I decided to not have the DE1 app automatically launch when the tablet powers up, because it's not how people except a touch device to work. You do need to tap the espresso machine icon.


    Things I'd like to improve:

    - unfortunately, there is no way for me to remove the Google Search Bar from the main menu. Believe me, I've tried. If someone figures out how to do this, I will be indebted to them!

    - I'd like a larger icon, but Android positively fights you over this. There is a way to do it that I know of, by writing self-standing Desktop Widget, and I'd love it if someone figure this out for me.

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    Quote Originally Posted by decentespresso View Post

    - I decided to not have the DE1 app automatically launch when the tablet powers up, because it's not how people except a touch device to work. You do need to tap the espresso machine icon.

    I would make the app auto launch. Itís the control panel for a coffee machine, not a tablet.

    You donít go into your car and hit the boot car icon on the touch panel. Same with any device in the house, they all load their interfaces.

    My 2 cents.
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  13. #913
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    Abs agree with having the App launch. People are buying a coffee machine not a tablet.

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    Quote Originally Posted by BlackPoison View Post
    Abs agree with having the App launch. People are buying a coffee machine not a tablet.
    I had it that way previously, and people who knew tablets were confused by it.

    Bear in mind that I do expect you to have some interaction with the tablet OS, for example to set up wifi so that we can send you new DE1 firmware and software.

    Also note that auto-launchers (unless they use a rooted method) display the main menu screen for about 5 seconds while boot finishes, and then they run the desired app. That was super confusing to people. The option was to use a rooted launcher, but I wasn't that comfortable with doing that for many reasons. Also, for people who didn't like that behavior, they'd now have to figure out how to undo my hack.

  15. #915
    gc
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    Smile

    Quote Originally Posted by decentespresso View Post
    Screenshot_2014-12-31-19-06-22 copy.jpg

    The past 7 or so days for me have been about setting the included tablet to be as friendly and professional as I can make it. I've intentionally set things up different from a normal Android tablet normally arrives, so as to make the tablet experience a bit easier.

    Here are a bunch of choices I've made, that I'm open to changing my mind on:

    - the screen doesn't power off if the tablet is plugged in. That way, you can tap the tablet at any time to warm up the espresso machine

    - all Google related icons have been removed from the main screen. If you want to run other apps, tap the ... icon on the center bottom

    - a custom wallpaper is installed, with only one important icon, in the center.

    - you push the power button to wake the tablet. No gesture needed. This is just to simplify usage.

    - there is no requirement to have a Google Play Store account, nor to connect to wifi (though wifi is needed when/if you want to software update). Software updates are not automatic because you might feel that your machine is working perfectly well and that you don't want to change anything.

    - the tablet will arrive to you pre-Bluetooth-paired to your machine.

    - the tablet will arrive preconfigured (just power it on). At the moment, the tablets are set up to be in English, but eventually, I'd like to pre-set up the tablet to whatever language and time zone you used when ordering your machine from us.

    - there is a self-standing "Decent Update" program icon, on the bottom left of the screen. This will update your software. This same feature is available in the app. However, I realized that if I accidentally sent out a totally broken version of my software, you would have no way to update to a non-broken one. So, I've made this alternate "Decent Update" for that (hopefully to never occur) eventuality.

    - "show touch events on screen" is enabled, as I find it helpful to have little "ghost clouds" appear under my finger as I tap. If you disagree, you can change it.

    - the tablet is pre-rooted with a recent free version of supersu, and the kernel is not locked down ("adb" runs in root mode). The tablet is "hacker friendly".

    - the DE1 and DE1+ software is installed in /sdcard/de1 (or /sdcard/de1+) and not buried inside Android in a read-only location, in order to make it easy for you to find files and change things as you wish. Each tablet contains the full source code to the GUI.

    - I decided to not have the DE1 app automatically launch when the tablet powers up, because it's not how people except a touch device to work. You do need to tap the espresso machine icon.


    Things I'd like to improve:

    - unfortunately, there is no way for me to remove the Google Search Bar from the main menu. Believe me, I've tried. If someone figures out how to do this, I will be indebted to them!

    - I'd like a larger icon, but Android positively fights you over this. There is a way to do it that I know of, by writing self-standing Desktop Widget, and I'd love it if someone figure this out for me.
    Starting at the bottom and working up would any of these be helpful for icon sizing?

    Icons - Materialize
    https://www.xda-developers.com/custo...ns-adapticons/

    As far as I know, all you need to remove the Google search bar from the home screen is a custom theming launcher which gives far greater control over the user interface - Nova launcher is only one of that comes to mind. But there are others. And since the tab is rooted you have lots of options.

    While I am a reasonably advanced android user [been flashing roms for years on different devices], like the other poster's above, I still think the DE app opening with the tab at boot is a good idea. It is a coffee machine first. As long as there is a one click/swipe from start screen to an android home screen - easily achievable with a custom launcher.

    Very pleased it is delivered rooted.

    When you say the screen doesn't power off if plugged in I assume you mean charging. If the DE is powered down, hence no power to the USB cable, does the screen go off then?

    As I've mentioned before, If you got the source code for the ROM from your supplier you would be able to modify and compile whatever you wanted into the ROM and then flash, including updates to Android itself. Any young software engineering student with an interest could do this easily.

    Finally, the forums at XDA developers contain an enormous wealth of solutions and information from a diverse and very talented developer community who are wiling to assist with the technical questions. The Alba tablet you use is an Archos IIRC? Maybe this area might help?: https://forum.xda-developers.com/archos-gen

  16. #916
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    Quote Originally Posted by gc View Post
    Starting at the bottom and working up would any of these be helpful for icon sizing? Icons - Materialize https://www.xda-developers.com/custo...ns-adapticons/
    I can make my own large icons (they're drawn 256x256) the issue is that launcher3 won't display icons any larger than 96x96 pixels. Yes, I agree that installing Nova Launcher is a way around this, but I'm loathe to move off the default launcher unless I have to. A desktop widget seems to be the standard way to work around this icon size limit, and that is compatible with the google-standard launcher.

    Quote Originally Posted by gc View Post
    As far as I know, all you need to remove the Google search bar from the home screen is a custom theming launcher which gives far greater control over the user interface - Nova launcher is only one of that comes to mind. But there are others. And since the tab is rooted you have lots of options.
    Yes, that's a possibility for the future. I think what I'd prefer is for people with more skill (and time) than me, to "pimp up" their Decent Android tablets, and to argue amongst each other which one is best.

    Quote Originally Posted by gc View Post
    While I am a reasonably advanced android user [been flashing roms for years on different devices], like the other poster's above, I still think the DE app opening with the tab at boot is a good idea. It is a coffee machine first. As long as there is a one click/swipe from start screen to an android home screen - easily achievable with a custom launcher.
    Currently, to get to the home menu, you swipe up while in any app, and then press the O icon that appears on the bottom toolbar.

    My reticence in auto-launching the Decent app was:
    1) unless I use a root-hack, there is a 5 second pause on the home screen before the DE1 app is launched
    2) it gives a microsoft-windows-like advantage to the "official app" as it is auto launched, and dissuades people from making their own competing apps. I particularly want to see competing DE1-control apps, for example with a pour-over focus, or a non-espresso extraction focus (other aromatics), and I can think of others.
    3) but this is a topic I'm still ambivalent on and might be convinced to change in the future (ie, enabling app auto-start as a checkbox inside the DE1 app, easily disabled).

    Quote Originally Posted by gc View Post
    When you say the screen doesn't power off if plugged in I assume you mean charging. If the DE is powered down, hence no power to the USB cable, does the screen go off then?
    There's a on/off slider in "Settings: Developer Options" for "Screen stays on when plugged in", and it just means that auto-tablet-sleep never kicks in if the usb charge cable is plugged into the tablet and charging.

    If the DE1 is turned off, then it is no longer charging the tablet, and then the tablet will turn itself off. At the moment, this is set to a 30 minute time, but I could make it shorter. I occasionally unplug the tablet to show people at demonstrations what is on the screen, and don't want the tablet powering off. Maybe 10 minutes would be a more appropriate timeout? Don't know : this is not that common a use case.

    Quote Originally Posted by gc View Post
    As I've mentioned before, If you got the source code for the ROM from your supplier you would be able to modify and compile whatever you wanted into the ROM and then flash, including updates to Android itself. Any young software engineering student with an interest could do this easily.
    Yeah, I know, but it's not going to happen, because tablet manufacture in Shenzhen is highly specialized, with the company we buy from sub-contracting the ROM development to another company. I got an "definite no" when I asked to be put into contact with the ROM subcontractor. It's not clear to me that the company that makes this tablet itself even has the source.

    This situation is why Android 8 is appealing to me. It is also why I'm hedging my bets and have made the app cross-platform. I think Google's Android is the best choice at the moment, but I like options.

    Quote Originally Posted by gc View Post
    Finally, the forums at XDA developers contain an enormous wealth of solutions and information from a diverse and very talented developer community who are wiling to assist with the technical questions. The Alba tablet you use is an Archos IIRC? Maybe this area might help?: https://forum.xda-developers.com/archos-gen
    Yes, this tablet is sold by Archos, but FYI Archos do not manufacture it. We're buying the tablet from the OEM that is behind Archos.

    Also note that this tablet has an unlocked Android, so that "adb root" returns "true". The tablet I bought from Argos (same exact hardware, almost identical OS setup) returns "not available in production OS" to my request for "adb root". I actually got lucky on this, because I didn't know at the time (last year) to specify this non-locked down option of Android, and it's made my life so much easier. The automatic-configuring of the Android tablets that I'm now doing for customers wouldn't have been possible on the locked down Archos version.

    Thanks for the XDA referral, I'm sure you're right that there's good stuff there, and I'll look at it in the future when I have the time. Today I was in the factory all day working with Bugs on heater assemblies. It takes time to hire good people, so at the moment we're short staffed and finding all the time we can to put into assembly, with "making the product" better" taking a second place to "shipping to customers who have already paid"

    -john
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    Quote Originally Posted by decentespresso View Post
    I had it that way previously, and people who knew tablets were confused by it.
    I suppose I’m someone who would ultimately expect the machine to turn up like the render, but I just need to put the tablet on the stand. Ie I think of it as a screen not a tablet. Anecdote not data!

  18. #918
    gc
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    Appreciate your time constraints at this stage John, and the time you gave for a detailed response. With root access and an unlocked boot loader, customisation by end users should be much easier. You might even consider installing a mini google apps install that doesn't include Google Now, or Google search bar at some stage in the future. But for now I'll just watch as delivery gets closer. All speed to you.

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    A Decent Update

    progress2.jpg

    Things are a busy here at Decent HQ, as we're all-hands-on-deck to build machines. You can't overnight hire 6 qualified people, so a lot of us are doing two jobs. I did hire 4 people two weeks ago, and two of them have worked out. We're just about to get into the Chinese New Year holiday here, so it's not easy to hire people. Immediately after the holidays, lots of people look for jobs.

    I took this photo montage two days ago but haven't had a chance to write this post. So, there'll be another post in a few minutes with more recent news too.

    - the cast aluminum drip tray covers saga is at last over! (center left and right photos) When I last reported about 6 weeks ago, they were nicely cast, but the finish was really ugly. Later, the company making them for us seemed to understand the concepts of "deburred" and also "polished" but both at the same time was never happening. We got two sets of samples over several weeks that were either or. Groan. This week we finally received 10 samples of polished, deburred drip tray covers, and boy they look great. Only negative: about 80% are slightly twisted by the drying process. Sigh. Good news: a little hand twisting for a few seconds and a check against a drip tray, and they're as close to perfect as we could hope for. And of course, the price has risen from $2.90 each to $5.50 each, because it's so much work for them to make them look this good. What can you do?

    - ten samples of all the PC boards arrived (bottom left). A few real-world problems were found. For example, the thickness of the wire used on the flow sensor is slightly too thick for the small connector on the PCB. This is solvable with a custom-made cable. We don't like the white glob of insulation paint on one board: it's safety compliant but it makes repairing the board next to impossible. They'll change that in production to insulating tubes.

    - Our biggest challenge is that we're having trouble finding someone to make the DC power cable quickly, as it's apparently not that common here (it's a Molex Nanofit http://www.molex.com/dpb/nanofit.html which we didn't think was unusual at all) and the cable makers want a lot of time to special order the parts and learn about it. We'll need to get the parts and make them ourselves, or else this'll delay things. In the past, we've just handmade the cables, in small quantities.

    - Jennifer has graduated to making pump assemblies (top left). Because our pumps are "vibratory" (no giggling, please) they need to be suspended in air and vibration isolated or they'll make a lot of noise. We use a combination of springs and soft rubber parts to accomplish this.

    - Bugs has emerged from her first government-required audit (it took 4 months!) and is pleased as punch to be away from Excel, now wielding power tools and making heater box assemblies. (bottom right photo)
    gc likes this.

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