Design

3D LEGO Technic Connector

Posted by on Jul 29, 2017 in Design, Documentation, LEGO | 0 comments

Connecting LEGO Technic beams in three dimensions remains a difficult task. While it has become easy to connect beams in one and two dimensions, it remains difficult to extend this to the third dimension.

I first designed a new LEGO Technic connector that features pins. The design was compact and stable, put the pins were too fragile. It was also very difficult to get the support material out from the holes.

My second design had no pins but still the option to firmly hold a technic beam. With this new 3D printed corner part it is possible to build a perfectly stable cube with a minimum of parts. The additional holes provide options for further strengthening the cube or to connect other parts to the cube.

The CAD model is available from Autodesk and GrabCAD.

 

 

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Easy LEGO Mindstorms Spirograph

Posted by on Jul 18, 2017 in Design, LEGO, Technology | 0 comments

Ever since I created the Spirograph Automaton I remained interested in drawing machines. For this years Christchurch Brick Show I wanted a more compact, easier to build version of the Spirograph. This time I used three motors instead of just one. Controlling the speed of both arms and the table was very easy this way. The Spirograph worked reliably throughout the whole show. The MinuteBot baseplate makes the construction even easier. The building instruction are available for LEGO Digital Designer. More information is available at Rebrickable.

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Health Mate App Has Many Problems Since Nokia Took Over From Withings

Posted by on Jun 27, 2017 in Design, Technology | 43 comments

I like my Withings products and the the associated Health Mate App has been a pleasure to work with in the past. Recently Nokia took over Withings and also rebranded the whole product range. They also gave the Health Mate App a complete new design. What really upsets me is that they did not manage to come even close to the functionality that Withings’ original Health Mate app offered. I received the following reply from Nokia after asking them where my swim tracking data had gone:

Below you will find a list of known issues that we are in the process of fixing:

  • Health Mate isn’t sending data to Apple Health
  • Historical weight data not displayed in app
  • Navigation and UI issues with weight data graphs
  • Temperature and CO2 widgets missing
  • Luminosity, Noise, and Temperature data not displayed for Aura users
  • Normal ranges for Weight, BMI, Body Composition not appearing in the app
  • Swim data missing from the app
  • Inability to BMI widget to Dashboard
  • Inability to set or edit alarms on the Aura
  • Inability to log food or access the Nutrition screens
  • Inability to link Health Mate to MyFitnessPal
  • Inability to edit your Profile (email address, height)
  • Inability to set or change a Reminder
  • Inability to link to MyFitnessPal

Note that this is the bugs they are currently working on, after they already released a bug fix on June 23rd (version 3.0.2). Why do they release an incomplete and buggy app? Yes, it looks fancy, but how about focusing on the functionality first? This is not a good sign for Withings products. I really hope that Nokia does not ruin their beautiful products.

UPDATE: 8 August 2017

My Health Mate App updated automatically and Nokia put up a rather apologetic message. I can’t test if all the functionality they promised now really works, but at least some connection to Runkeeper is now working. My Swimming data usually is displayed twice, which remains a bit of a bummer.

Nokia apologises

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LEGO Compatible Medium Sized Thrust Ball Bearing

Posted by on May 24, 2017 in Design, Featured, LEGO, Technology | 0 comments

LEGO Compatible Medium Sized Thrust Ball Bearing

LEGO’s turn table has considerable friction and rotating a model at an exhibition for a whole day would ruin it. A thrust ball bearing is necessary to decrease the friction. I previously 3D printed a large bearing for my Unikitty. For this year’s exhibition I needed a smaller thrust ball bearing so I designed a new medium sized ball bearing. It includes liftarms to hold a worm wheel which results in a rotation ratio of 1:78. You can download the model from A360 and GrabCAD.

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Revisiting 8230 Coastal Police Buggy – Stud.io Review

Posted by on Nov 27, 2016 in Design, Featured, LEGO | 2 comments

Revisiting 8230 Coastal Police Buggy – Stud.io Review

Back in 1996 I created 3D animated building instructions for the set 8230 Coasatal Policy Buggy. It was part of an internship at a 3D Company and it took me months to model every brick and to animate the whole model. Below is a rendering that took half a day to render. Twenty years later it is time to build this model again. Not with LEGO Digital Designer (LDD), but with Stud.io, the latest addition to virtual LEGO editors. Stud.io is currently a closed beta and the makers of Bricklink sign responsible for its development.

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Game Of Bricks T-Shirt On Sale At TeeFury

Posted by on Nov 17, 2016 in Design | 0 comments

My Game Of Bricks T-Shirt is now on sale at TeeFury. It is an excellent mashup between LEGO Classic Castle and Game Of Thrones. It is $15 during the first week and $20 after that. So get your t-shirt now!

game-of-bricks

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