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November 18, 2017

New reprap images on Photobucket

DIY 3D Printer and Reprap

Best 3d printer_zpsuoctq7hr.jpg
DIY 3D Printer and Reprap - Best 3d printer_zpsuoctq7hr.jpg

We are one stop destination for cheap 3D printer, 3D printer kit, Reprap printers and DIY 3D printer. Read latest reviews and buy DIY 3D printer and kits.

by star133 at November 18, 2017 08:12 AM

Thingiverse - Newest Things

Honor 8 Bumper - PLA/PETG

Back in the Days I had a Nexus 4 with a pretty nice Bumper. But there is nothig like this today. I´ve remixed the Flexbumper by Jonathanfjellstedt and gave it a own touch. This Bumper is made to be printed in PLA/PETG or ABS(untested).
I´ve made it slighly smaler and cut away a bit on the top and bottom. I´ve cut in the edges to snap fit perfectly. (You need some pressure, but it will fit :D)

Hope you enjoy it as much I do.

by DDJW at November 18, 2017 07:05 AM

Tales of a modern life

Bonaverde - The Facebook Coffee Machine


  1. old posting on this topic: none
  2. current posting
  3. next posting: First Bonaverde coffee delivered

Back in 2014 I ordered a Kickstarter Bonaverde roast-grind-brew coffee machine for 299eur.
Now it has arrived.

What I wanted it for

I wanted to be able to roast coffee without requiring a lot of space in the kitchen.

To make (filter) coffee from it with little effort when I want to just have my coffe.

But also to custom roast coffee for manual grinding, spicing and brewing my favorite arabian mocca when I want to put effort into it.
Or do the same to feed my grind-brew Espresso machine with fresh milk for Cappucino.

Roasting on Sunday to brew the next weekend
or roast on Friday night to brew on Sunday morning
would be perfectly acceptable for me.


 It came well packaged and even included a velvet liner for the entire machine. (Looks nice but I'm not sure it is ment to carry that kind of weight.)

What was strange was that on the top and the sides they used easy-to-recycle cardboard. Yet at the bottom the packaging was custom shaped plastic-foam.


I noticed a few usability fails:
  • Power socket is on the underside of the machine. Yet neither quick-start nor manual tells you to look in this unusual place.
  • The water-tank is very narrow. Only slightly wider then a small water-fouced. You have to be careful with the water-pressure when filling it up. 
  • It shuts itself down automatically. It doesn't keep the coffee pot warm. At least there is no obvious way to do that.
  • The IMEI for the Facebook Messenger bot is also on the underside. You have to remove all water, coffee can, ... from the machine and topple this heavy thing over to read it. Tilting it is not enough to read the sticker because it's placed in the center.
  • The water tank leaks heavily when you try to carefully carry the machine to a different place with water alreay in there.
  • The instructions for the air filters are missing the first step "scan the RFID tag of the air filter".
  • There is no indication about what flavor to expect from the different beans (more about this below) or what type of beans they are. Also not always obvious what country they are from.


Obviously every good coffee starts with good water.
I was very surprised that the water-tank of this expensive machine did not contain any water filter to remove chalk.
I had thought about this as a standard-feature even for much cheaper machines nowadays.

The Facebook Coffee Machine

Before delivery
In the weeks before delivery, it became more and more clear that all user interaction including even the shop for buying new beans was implemented as a Facebook Messenger chatbot.
This came as quite a surprise.

Here are the Android permissions required by Facebook messenger:

    Before you receive your machine, the first interaction with it looks like this:
    I desperately hope this is going to change....soon.
    If I have to interact with my coffee machine via a command line, it better be an SSH terminal.
    I can't imagine comparing and buying beans and comparing the details of roasting profiles this way. Let alone making any kind of (PCI DSS compliant) monetary transactions.

    During delivery
    Shortly after the machine arrived, I cat a personal call. However I was busy and the second time they called I was buying coffee-filters and didn't have my phone with me.

    I also got am email "Bonaverde - Dene Maschine ist da!" (Yes, a German company with wrong spelling in their automatic customer emails)
    However, despite only containing text, the email contained no text/plaintext and only a very cryptic
    Content-Type: text/html; charset="iso-8859-1"
    Content-Transfer-Encoding: quoted-printable
    ", with Microsoft-specific XML namespaces.
    Therefore my cellphone would only display it as a blankscreen for security reasons.
    Also.... not UTF8 and not the newer ISO-8859-15 that was introduced in 1999 as a replacement.
    Aparently it was witten in Microsoft Office365 Word and sent using Microsoft Exchange (because a ton of internal X-Microsoft-Exchange-Diagnostics and X-Exchange-Antispam* have not been removed uppon sending).

    Using the "Coffee Concierge"

    Note that this is still in alpha stage.

    What I did find at first glance was:
    • It does offer to "roast only" and "brew only"
    • After starting anything the user it not instructed how to abort. Typing "stop" seems to work.
    • It does not check of the machine is connected or powered. It just tells you "Pouch not ready" for "grind only" when the machine is unplugged and has never connected to GSM at all yet.
    • If idle, it does seem to spam you with trivia about coffe and FAQ entries. There is no obvious way to stop this. So make sure to disable audio notifications!
    • The store to buy beans does not yet exist.
    • After "make coffee" is finally gives you some information about what flavor to expect...however for one, randomly selected bean only. Yet no infocmation how to abort, get info about other beans or actually have it make coffee.
    • The answer to "what is blueberry" (one of the 3 bean package types) is "Sure. Let's get the roasting going."  ????  
      • Update (2017-11-14): I got an email from support "Within the bot, you can now choose the roast profile for the new beans as well as find out more about the flavours." Uppon clicking through the menu of the Chat Bot I can not find any hint as to how to do the second. I'll certainly try the first next weekend.
    Some days later:

    "Buy coffee beans"
    •  "opens a web browser with the Bonaverde homepage" - does not work yet

    "Schedule coffee"
    • "in development" - does not work yet
    "Make Coffee"
    • offers only a single type of coffee
    • does not have "scan coffee pouch" in it's instructions
    • Always aborts with "the roaster door is open, please close it" even though it is it 
    • => does not work yet
    "Coffee School" 
    • Seems to be a question and answer game of coffee trivia
    • No obvious way to abort.
    • Asks "wich composer wrote an OPERA about coffee" and answers with the "Cofffee Cantata". Obviously a Cantata is a very much smaller piece of musical work then an entire opera. (At most equivalent to a single opera scene.)
    • The question "Did you known that at one point in history coffee was 'illegal'?" Only allows for a single answer.
    • At one point it goes from small-bandwidth text to a video but luckily doesn't start to play without user consent. However there is no obvious full screen mode. So it's a tiny video on an already tiny screen.
    • It seems  you can't have all lessons the same day.

      Offline use?

       The FAQ contains two staements:

      And it doesn't contain...

      So, if the RFID chips only contains the serial number and the roasing profiles are "in the cloud" = on someone else's computer, how can it be used offline with the RFID tag?

      Naturally the first test I did was to unpack it in a location without any cellular network reception and try to make coffee.

      YES, IT WORKS OFFLINE. ...and I have the 4K video to proof it.

       Only full cans of coffee (being worked on)

      In the Kickstarter Campaign, the machine was advertised with "capacity: 2-12 cups".
      Naturally I though that ment you could brew as little as 2 cups of coffee.

      No, it can only make full cans. According to the FAQ, Bonaverse is working on supporting half cans but not less. 

      Roast only/venting (being worked on)

      Without Facebook, you can only roast, grind and brew without interruption.
      There are no special RFID tags to allow roasting or grinding or to make "regular" coffee from beans or ground beans.
      So the only choice without Facebook for now is to pull the power plug.

      Only after I connected to the "coffee concierge" and it did offer me to "grind only", "roast only" and "brew only".
      Luckily this is being worked on because for filter-coffee the beans should stay 1-2 days to release stored CO2. For espresso about a week (or so the Internet tells me).

      It can not make hot water for tea as an alternativ.

      Testing it...
      For "roast only" it would tell me to insert coffee. I did.
      Then it tells me that is will start soon...... even after a long time it doesn't to anything.
      Then I switched the machine on and tried again......still nothing.
      Then I scanned the coffee pack and tried would tell me "coffee pouch not ready". No idea what that could mean.
      So... "roast only" doesn't seem to work yet.

      Quality of the grinding?

      First of all: I like mocca. If I can't get mocca, I settle for an espresso. Filter coffee is only a last resort to stay caffeinated.
      That means I like my coffee ground to a dust. Mocca needs it much finer then even an espresso. So I rely on my Hario Skerton. I usually operate it by hand, so the dust doesn't get hot during grinding.
      On my first test I didn't manage to get a look at the ground beans before the coffee is made.
      This is what the filter looked like afterwards: (Overexposed, so the coffee is clearly visible)
      The coarseness-lever was at factory-default = centered.

      Check out this test of a Beta machine (in German) to see a photo of what a BETA-machine made.

      To be tested later... (This blog posting will be updated.)

      Packaging and choice of beans?


      After seeing the packages given to beta testers here here, I was suspicious.
      If the packaging is the coffee filter, how to keep it clean and food-safe during storage and when transporting it?
      The photos show packaging with lots of text about the farmer.... yet there is not a single word about the flavor to expect with the associated default roasting-profile not about the choice of beans contained within. (I do prefer chocolate flavours and when looking for them with roasters, I usually found them created with Coffea canephora / Coffea robusta beans.)
      I desperately hoped that either this would have changed or the backside of the labels would contain such information.

      My machine came with 3 types of beans. Named
      "fresh nuts", "almond" and "blueberry".
      There is no other indication about what flavor to expect from them when using the roasting profile these bean-packages include.
      They do have some information about the farmers but only 2 of the 3 even state what country these farms are in.
      They have no indication about what types of beans they are, However I suspect all 3 to be Coffea arabica, not Coffea canephora


      My first test was "blueberry".
      While I know that there are some roasts described of tasting "nutty" or "like almond", I have yet to hear of a "blueberry" taste. My preference would have been a "chocolate like" taste but that was not included.
      I am no expert. I only happen to drink and make coffee often.
      As stated, I made the first can offline. It worked. I can't make out any kind of specific taste in the coffee. Only that it is definately slightly sour. After a while this turned to only being ever-so-slightly sour. There is no bitterness to speak of. No taste that stands out at all. This can be interpreted as a bad or a good thing.

      After slowly drinking half a can of coffee to make up my mind about the taste and leaving the other half at 40°C hot air in my microwave - to keep it warm - , I am too pumped to do a second and third test.

      A new day, a new test. Same "blueberry". This time with the grind-settings as fine as it will go. The machine was allowed to have access to GSM cellular services. Identical taste.
      I should do a third test with these beans doing "roast only" and allow them to release CO2 for 2 days.

      I will have to try "roast only" and have it releae CO2 for 1-2 days to hopefully get rid of the sour taste.

      Second bean-type "almond".
      The first taste was definately sour. More so then "blueberry". When it has cooled down a little it leaves a bit of bitterness afterwards.

      As with "blueberry", I definately have to try it as "roast only" instead.

      Third bean-type "fresh hazelnut".
      To be tested later...

      Burbon Rojo by Rodofo Ruffatti from El Salvador.
      Freshly roasted, the same result as the others.
      I did not even intend to try this freshly roasted but the "roast only" option was currently not functioning.

      "roast only" and then brew after 2-14 days.
      Freshly roasted coffee seem to generaly not be to my liking.
      I'll try to find coffee-pouches with a pressure-seal (to release CO2) and try to fill them with pure CO2 from a can before I put the beans in. This way they should not contain any Oxygen until I open them for grinding.
      See here for the result of this test.

      Since I travel a lot. I guess a profile where I can pre-program the machine to roast 1-2 days before I arrive and then start grinding and brewing, when I get home would be great. After all, it is cool and dark in there (no light or non-essential heating while nobody is home) and without the ventilation there should be minimal air circulation.


      You need to steam your milk separately. For cappuchino, the espresso machine that takes your roasted beans can do that anyway.
      Of cause to do that, you would have to pull the power plug at the right time to get to the roasted beans. 
      Since it is ment to make filter-coffee, not being able to steam milk is acceptable.

      Custom roasting, custom beans, venting?

      To be tested later... (This blog posting will be updated.)


      Since the rinse RFID-tag was removed, there doesn't seem to be any way to clean this machine offline.
      Even with Facebook and Facebook Messenger, the only option seems to be to "brew only".
      There is no indication in the manual or FAQ of using vinegar to remove chalk is recommed.



      by Marcus Wolschon ( at November 18, 2017 06:24 AM

      Trying "roast only" on the Bonaverde again


      1. old posting: First Bonaverse coffee delivered
      2. current posting
      3. next posting:

      I tried the "roast only" option in the alpha version of the Bonaverde "Coffee Concierge" Facebook Messen Chat bot today.

      The first time I tried that (then the machine was delivered) it did not yet work.
      This time it seems to be be doing something.
      It asked me to insert beans. I did. 
      Then my "Berlin" coffee machine came to life and started roasting.
      In case this would not be work out as a "roast only" , I quickly added a coffee filter and water.... Just to be safe.

      It did *not* ask me what type of beans I had inserted or to scan the RFID tag of the coffee bean pouch.
      My guess is that it is using some kind of default roasting profile.

      After roasting it was suddenly glowing red and was indeed not continuing with any grinding or brewing.
      I put the beans into a clear plastic bag with nearly no air in there to find out just how much CO2 they will release until Monday and to keep then away from oxygen.
      Then I'm planning to manually make a nice espresso and maybe a fresh press. 

      Result (filter coffee): "Almond"

      After 1 week to release CO2, I made a filter-coffee in the Bonaverde "Berlin".
      Half the beans with half the water, so I would have beans left for an Espresso.
      It tasted very different from the freshly roasted coffee. This time it was neither bland nor completely sour. It tasted like actual coffee..
      It was one of the original "Almond" bean-packs.
      I'm not 100% sure if I did taste a hint of almond. It was not the taste I was looking for but it was a good cup that was neither bitter nor sour and actually tasted like coffee.

      Result (Espresso):

      Stay tuned!

      by Marcus Wolschon ( at November 18, 2017 06:21 AM

      Thingiverse - Newest Derivatives

      3Drag/K8200 Mounting support for MK8 extruder

      A way to improve the resolution of the 3Drag / K8200 printer is by changing the extruder. One cost-effective alternative is to use an MK8 extruder with a 0.4/0.3 mm nozzle.

      Currently, there are different ways to attach the extruder to the printer, here I propose a different approach where a single 3D printed clamp is required.

      Since I'm interested in recycling as many parts as I can from the original printer (see for example, the clamp is fixed to the metal plaque that supports the original extruder by using two screws.

      The support has proven to be robust and simple. I have printed a first model in PLA that required sanding in order to fit the stepper motor inside.


      2 x M3 screws (recycled)
      1 x M4 screw + bolt

      by totesalaz at November 18, 2017 04:09 AM

      3/4" Garden Hose Adapter

      I broke one of the garden hose adapters so I decided to design my own and print one.

      Garden Hose Thread: 3/4" [0.75-11.5 NHR]

      Female thread obtained from:

      I'm still printing this in ABS. I will post the results soon.

      by hiruna at November 18, 2017 03:57 AM

      November 17, 2017


      Mint 18 Installation

      NOTE:  I had to do the install without 3rd party applications or I would just get a blank screen with a cursor on it.

      • Crossover Office (Gaming)
      • Vmware Workstation
      • Chromium
      • Lastpass

      by Andrew Falgout at November 17, 2017 04:00 AM

      November 16, 2017

      La Grotte Du Barbu

      nouvelle étagère? – miniEpisode

      Et oui, comme c’est le bordel il faut trouver de la place pour ranger des trucs… et donc je vais faire une étagère sur mon deuxième bureau pour pouvoir mettre encore plus de merde en dessous…

      La matériel
      visseuse –
      scie sauteuse –
      scie japonaise super géniale –
      blue tape –
      des tasseaux d’un vieux projet
      de l’osb acheté pas cher au magasin de bricolage

      La musique
      Fights – Silent partner –
      No_Win – Silent partner –
      Red_Chair – Silent partner –

      Utip –
      Tshirt LaGrotteDuBarbu –
      BTC (bitcoin) – 1NpJv91vLSqMerDvs8Hz46vRbvwPzcq9bS
      Discord –
      La wishlist Amazon –
      l’email –
      twitter –
      facebook –
      instragram –

      Abonnez vous à la chaîne et faites passer la barbitude autour de vous

      Inspirez vous, faites des trucs et que la barbitude soit avec vous

      Flattr this!

      by babozor at November 16, 2017 08:03 AM