THREEDY 3D Printer Training Day January 2017

Would you like to learn about getting the most out of your THREEDY 3D Printer? 

Come to our next THREEDY 3D Printer Training Day in Letchworth Garden City, Hertfordshire 

on Wednesday 11th January 2017

The hands-on interactive training day will cover:

  • Printer basics
    Printing with various materials including ABS, PLA, nylon, carbon fibre
    Effects of printing at different temperatures
    Benefits of orientating the print object on the printer
    Printing large and small objects
  • Printer settings
    An overview of different slicing options and slicers and the printing process
    Printer speeds and how they affect the final printed objects
  • An overview of popular design software
    including SketchUp, OpenScan
    using PhotoToMesh for generating cylindrical and spherical photo lithophanes
  • Tricks and tips for better printing
  • Interesting school & hobby projects

The cost for the day will be £150+VAT* per person. Refreshments and lunch will be included. Printers and materials provided.
*Course attendees will receive a £125 discount off any THREEDY 3D Printer purchased within six months of the course date

Would you like to book a place? email


Letchworth Model Railway Exhibition

A slightly belated post to say

firstly: thank you very much to Letchworth Model Railway Society for giving us the opportunity to attend their 2016 exhibition in November.

secondly: thank you to the Austrial Railway Group for freeing up space for us (although we are of course sorry that you were not able to attend!)

It was great being able to exhibit our THREEDY 3D Printers so close to home. We had fun printing and chatting about 3D printing railway related items – loco sheds, bogeys etc. We hope that our demonstrations showed what they are capable of and how useful they can be in creating your models.

If you are interested in using a 3D printer to create some of your models – whether for model railway or any other purpose – please do get in touch. We are always happy to have visitors to come and see our THREEDY 3D Printers in action and answer any questions you may have about 3D printing. Contact us if you’d like to arrange to visit – or if you would like to arrange for us to attend an event you are running.

Preparations are now underway for our next model engineering event – the London Model Engineering Exhibition at Alexandra Palace 20-22 January 2017.


Carbon Fibre 3D Printing

We are getting some great results using our THREEDY 3D Printers to print with carbon fibre (carbon fibre filled plastic filament)

After some tweaking, the resulting prints are incredibly strong. It does not crack when screws are screwed in through it. Even with considerable force applied, no shearing is occuring between the layers.

G4G COM Letchworth 2016… It’s almost here!

gathering-for-gardnerPreparations are well underway here for our Gathering 4 Gardener Celebration of Mind event, which we are hosting in Letchworth Garden City this Saturday.


photoWe have lots of interesting talks lined up, including:

  • 2016
  • Chains
  • Blowing Up Buildings
  • Magic
  • Interesting Finds
  • Oddities & Eventies
  • How Hard Is A Puzzle?
  • The Problems of Abbot Albert
  • Alien Autopsy
  • My Favourite Interview Question

It isn’t too late if you’d like to add yours – we still have a couple of slots left for five minute talks / presentations; anything related to maths, science, puzzles & magic. Contact Simon if you’d like to be included.

Code and Chips with Hacklab and ARM

Inspiring the next generation
Inspiring the next generation

Yesterday Simon and Richard, along with several of our THREEDY 3D Printers, had a great day out at the Cambridge Science Centre for this fantastic event.  Code & Chips 2016 was a day of technology workshops and exhibitions aimed at getting students from Year 4 to 8 (8 to 12 year olds) skilled up and excited about a career in STEM (Science, Technology, Engineering & Maths).

Thanks to Hacklab for this photo: Mathematical Shapes 3D Printed by THREEDY
Printed by THREEDY
THREEDY 3D Printers ready to print
THREEDY 3D Printers ready to print

A big thank you to HackLab and ARM for giving us the opportunity to participate in this event.  We love seeing our young engineers of the future being inspired by STEM activites – and what better day for it than Ada Lovelace Day; an international celebration day of the achievements of women in science, technology, engineering & maths.

We hope to work with you again in the future!

An Invitation: Gathering 4 Gardner Celebration of Mind 2016

We are excited to be once again hosting a fantastic day sharing interesting puzzles, maths, magic & science.

gathering-for-gardnerLetchworth Garden City, Hertfordshire photo

Saturday 22nd October



What is G4G?

Martin Gardner

Martin Gardner was an American writer who pioneered the field of recreational mathematics for many years. He died in 2010 and since then Gathering for Gardner (G4G) events have been held around the world, usually in October, to celebrate the types of pursuits he made popular. You can read more about these events at

The focus is on sharing interesting things in the related fields of:


  • mathematics,
  • science,
  • puzzles
  • & magic

What happens at the celebration?

The day will include a series of 5-10 minute talks as well as the chance to browse various tables of interesting objects with the opportunity to play with a wide variety of 3D puzzles and have a go at various mathematical puzzles. Attendees are encouraged to contribute to the display tables or to give a talk.

What will be there?

Activities and display tables are expected to include 3D puzzles; mathematical origami; optical illusions; 3D printing; mathematical conundrums; challenge games (eg rush hour). The 2016 talks will be listed soon. The C4G COM Letchworth 2015 talks included:

  • how to make impossible objectsoli bottles
  • easy way to understand Tower of Hanoi
  • how the Infinity puzzle was solved
  • automata
  • extreme puzzles
  • magic

Interested in attending? Please let us know and we will send you an invitation. Please then RSVP so that we can update our numbers. Also, let us know if you would like to give a talk or contribute to the activities and displays.


Back To School

The children were back to school this week. In preparation (and with hope of increasing the chance that they will return home with their own belongings) THREEDY 3D Printed these personalised name tag labels.

Threedy 3D Printers – Timeline | Facebook

Threedy 3D Printers. 99 likes · 30 talking about this. THREEDY 3D printers are high quality, reliable 3D printers designed and manufactured by PuzzleShed…

3D Printing Impossible Objects

img9When metagrobologist David Singmaster gave his talk on Impossible Grilles at MathsJam 2015, it inspired Simon to print some of these “impossible objects” using the THREEDY 3D Printer he happened to have to hand. puzzlegrill

Whilst travelling around medieval cities, particularly during Italian holidays, David observed the heavy grills over windows of buildings. Many years ago, he noticed that the bars at the centre formed a pattern which seemed to be impossible to assemble. This “impossible” grill pattern is also depicted in M.C. Escher’s Belvedere print.

David later saw that this central area could be assembled by a simultaneous converging process but the pattern continues and this made his idea fail. David showed his idea to James Dalgety, who proceeded to make an example from heavy wire; David then saw how to assemble the whole pattern easily.


The grill rods are printed individually, then slotted together – simple as that!

A belated thank you to David Singmaster for his inspiring talk.


Ambiguous Cylinders on the West Highland Way

Simon and his family enjoyed their summer holiday walking the West Highland Way – yes, all 96 miles of it. IMG_20160823_133906IMG_20160831_112800Greetings to the physicists from University of Munster, with whom we shared these Ambiguous Cylinders. The ambiguous cylinders were printed on a THREEDY 3D Printer, with kind permission from Kokichi Sugihara. This illusion was designed by Kokichi Sugihara and won second prize in the Best Illusion of the Year Contest 2016. More info (and other fantastic illusions) can be found on his website.