Feb 28, 2014

BotBQ open source barbecue extruder for your 3d printer

BotBQ is an open source barbecue extruder for your 3d printer.  It is basically big powered culinary syringe that extrudes meat into shapes.  

Here is how to assemble it guide video:

Here it is extruding some meat:

Interesting interview with its creator Jason Ray on 3digitalcooks:

He is working on developing two models: home kitchen model and higher volume "prosumer" bigger grill model.

BotBQ project homepage  with extensive information about it:

3d printed burger from BotBQ on grill

INventOne 3d printer by MakerDreams from Italy

New 3d printer from Italy. I like the design.

Technical specifications:
  • Build volume: 280 L X 210 W X 200 H mm [11.0 X 8.2 X 7.8 in]
  • Layer resolution: 100 microns [0.0039 in]
  • Filament: 1.75mm
  • Nozzle diameter: 0.3mm
  • Weight: 18.5kg [25.4 lbs]
  • Software: Cura 14.1, Printrun
  • Power: 12 V DC @5.0 AMPS
  • Price: €725 ($993) for the first 60 orders and €800 ($1100) for the next version

3D Printing curriculum for your school classroom by SeeMeCNC

Here is the full curriculum, very detailed and well composed:

It is very good document, you will find it useful even if you are not an educator.

Feb 27, 2014

How to create model for 3d printing from CT or MRI data with open source 3D Slicer

This very detailed tutorial was prepared by Nabgha Farhat, Brigham and Women's Hospital. It describes, step-by-step how to extract specific data form CT scan and convert them into format from which it can be 3d printed. She isolated portions of the mandibular bone and the temporal bone for the model. Freee and open-source Slicer software was used.
Data was acquired with:

Tutorial has several chapters:
  1. Introduction to the 3D Slicer interface
  2. Loading data
  3. Volume rendering and cropping
  4. Creating label maps
  5. Creating surface models
  6. Saving data in file formats appropriate for 3D printing
Link to Slicer:

Slicer is a free, open source software package for visualization and image analysis. 3D Slicer is natively designed to be available on multiple platforms, including Windows, Linux and Mac Os X.

Luis Ibanez made a post on KitWare blog, describing the process of actually printing this object:

For other medical field 3d printing applications see:


BTW: yes, you can 3d print your own skull if you have a CT scan of it ...


Here is Reddit thread on how to make 3d models from MRI data which has more methods beside this one more specific for MRI and DCIM images:

Update 2 (5.10.2014.):

Here is another video tutorial by Oliver Krohn on how to convert DICOM CT or MRI images into 3d printable models. It uses different software tools.
Preparing DICOM images (CT/MRT) for 3d printing using Seg3D, Imagevis3D (University of Utah, CIBC) and Meshmixer. 
Seg3D offers the advantage to apply filters, but it's not absolutely necessary. Imagevis3D can load DICOM stacks as well and the rendered isosurface may be exported as mesh directly. In this video I used the gaussian filter of Seg3D to smooth the model a little bit. 
Software Downloads:


here is a tutorial on how to design and 3d print a custom trachea stent from CT data:

Here are some 3d printed prototypes in common plastics from the tutorial above:

Feb 26, 2014

AJ TV report on printing replacment human skin for burn victims

From video description:
A new invention being put together could signal a major breakthrough in the way patients with burns injuries are treated. A researcher in Canada has developed a three-dimension prototype printer which will produce human skin from a patient's own cells.
Doctors say it will revolutionise the process of skin graft operations, and can save the lives of hundreds of burns victims every year.
And not just skin: the technology may also pave the way for producing entire organs for transplants.
Al Jazeera's Danel Lak reports from Toronto.


Feb 23, 2014

Dell and conflicting marketing messages in 3d printing

So, Dell bought 5000 Zortrax 3d printers from Poland for their own engineers. That surprised even Zortrax. CEO of Zortrax said:
“Frankly speaking, we were surprised that any company, even a company like Dell, wants to place such an order! But after a while we realized how many printers we use in our own office… For a designer who prints a large number of prototypes it is much more useful to use 10 smaller printers on one desk, which operate simultaneously, rather than one with a larger build volume,”

After some time they made a deal with MakerBot to sell their Replicators.

Maybe it's only me, but isn't that some sort of conflicting message?

When we buy for us we choose Zortrax, but when we sell to you, we sell you MakerBot.


Sure, average buyer will probably not follow all the news in such a detail ...
Some news sources even reported that Dell will sell Zortrax printers to public ... who knows ...

From DIY 3d printing history 3 - CNN interview with Chuck Hull

"The night I invented 3D printing" CNN interviews Chuck Hull

Chuck Hull (75) is the co-founder, executive vice president and chief technology officer of 3D Systems. He is the inventor of the solid imaging process known as stereolithography (3D Printing) in mid 1980s, the first commercial rapid prototyping technology, and the STL file format. He made on more than 60 U.S. patents as well as other patents around the world in the fields of ion optics and rapid prototyping.”

But, was Chick the first to develop 3d printing technology? Maybe not ... more soon ...

Other stories from the past:

mUVe developed improved Marlin firmware

mUVe 3D creators in cooperation  with Tim Schmidt and the Lansing Makers Network developed improved Marlin firmware version that can also work with with laser cutters, UV laser printers and has some more advanced options.

From source article:
This is a huge addition to the functionality of the Marlin firmware and it will allow a huge array of hardware to be run. It’s no longer a firmware for just FFF machines, we can now make laser cutters, and laser based 3D printers. Best of all, it’s a HUGE improvement to print quality and will help your QSil and Sylgard last much much longer than before! Look at all the additions!
  • mUVe 3D specific peel move still exists and is a function that can be turned on and off before you compile, so now you can use the firmware on other SLA based machines without edits.
  • Use hardware other than Arduino Mega 2560 and RAMPS, you can select the machines on the list that have enough memory to install it. It has grown in size, chips with less memory may be an issue but this hasn’t been investigated yet.
  • Firmware defined laser point size for future features such as W/cm^2 calculation and auto-laser-power setting for resins with W/cm^2 data available.
  • EEPROM saves the amount of time the laser has been on and will tell you when you boot how many hours and minutes the laser has been used.
  • PPM laser pulsing with specific maximum frequency set in Hz.
  • Laser pulsing built right into stepper code so there is no added processing time, delays, or otherwise. Full speed printing.
  • Configurable laser power on a scale of 1-100.
  • Configurable pulses per mm, default of 10.
  • Configurable time on for each laser pulse in microseconds, default is 3000.
  • Default connection speed lowered to 115200 for compatibility with more computers.
  • Built on and compiles with the latest version of Arduino, main file is now Marlin.ino.

Source and download links:

Software tool chain for everyday 3d printing by Steve Graber

Ever wondered what software tool chain other people use with their 3d printers? Here is video by Steve Graber.

From video description by Steve:
I thought some of you might be interested in seeing a high level overview of the tools I've been using most often for 3D design and printing. 
Modeling in Solidworks and exporting .stl files. Loading an .stl file into Kisslicer, showing basic slicer settings and saving the resulting G-Code. Then using Repetier-Host for local printing and/or printing via wifi to a 3D printer located in another room of the house using my LG G2 smartphone as the printer controller with GCode Simulator and Printer software.

He uses LG G2 Android powered smartphone as the printer controller with GCode Simulator and Printer software.

Source :

RepRap Wilson 3d printer

RepRap Wilson is derivative from Josef Prusa's i3 with the following goals:

  1. Replace the waterjet metal frame / wooden box frame with an inexpensive and rigid frame made from standard 2020 Aluminum Extrusion.
  2. To make the build volume parametric (easy to scale up or down by 50%), with a parametric BOM tool (spreedsheet) to assist in part selection.
  3. To simplify construction of the printer by reducing vitamins and including detailed assembly steps as part of the design files. I've made an effort to reduce the number of unique parts (nuts & bolts) as much as possible. I've also incorporated single-piece Y ends that eliminate about 20 more hardware items.

GitHub repository for Wilson:

RepRap wiki, includes assembly guide:

Sketchfab - 3d model sharing and embedding (Update: now with repository functionality)

Sketchfab is a web service to publish, share and embed interactive 3D models online in real-time without plugin.

Here is 3D Printshow's Andrew Critchlow interview with Alban Denoyel from Sketchfab on 3d Printshow in NYC 2014.

Formats supported by Sketchfab:
  • Blender (.blend),
  • Collada (.dae),
  • Wavefront (.obj),
  • FBX (.fbx),
  • Design Web Format (.dwf),
  • OpenSceneGraph (.osg, osgt, osgb, ive),
  • 3DS (.3ds),
  • Lightwave (.lwo, .lws),
  • Polygon File Format (.ply),
  • Virtual Reality Modeling Language (.wrl), 
  • Open Inventor (.iv),
  • Shape (.shp),
  • Standard Tessellation Language (.stl),
  • Biovision Hierarchy (.bvh),
  • Open Flight (.flt),
  • ac3d (.ac),
  • DirectX (.x),
  • Designer Workbench (.dw),
  • 3DC point cloud (.3dc),
  • carbon graphics Inc (.geo),
  • Generic Tagged Arrays (.gta),
  • Keyhole Markup Language (.kmz)


Sketchfab just added a download functionality making it into 3d model repository.

Feb 22, 2014

How to make PLA plastics flexible with Carburetor Cleaner

Another interesting video by Jaidyn Edwars. He took some risks here for the science :-) Now, this is for information only, do not try this at home :-) I'm not sure what would be practical implementation of this method, but it is interesting nevertheless. This chemicals are toxic ... Also, what exactly is chemical composition of carburetor cleaner? are there different formulas?

From video description:
In this video I take a look at turning PLA 3D prints flexible by bathing them in Carburetor Cleaner (also known as carby cleaner).
The results were amazing, but, I don't feel they are worth the potential dangers. Carby Cleaner is very toxic stuff that is highly flammable, not good to breath in, not good to get on your skin and the smell lingers on for ages.
Definitely do not give the parts to kids as I don't reckon putting these parts in your mouth afterwards is a good idea at all.


Hot to calibrate extruder on Cerberus Pup and set the e_steps_mm (probably works with most Repetier-Host Marlin 3d printers)

Here is Steve Graber showing us how to calibrate an extruder on Cebrerus Pup 170 delta 3d printer. Methodology can be also used on other machines. Good learning material.

He is Using Repetier-Host software and Marlin firmware with EEPROM storage functions he sets the e_steps_mm.

Feb 21, 2014

3d printable Google Glass adapter for any frame

Now you can attach Google Glass to any frame with this 3d printed adapter by Adafruit.

Detailed guides can be found at:

Check out other cool Google Glass, DIY and 3d printing projects here:

MX3D Metal supportless multiaxis 3d printing

Industrial robot arm with attached advanced welding head. It can print lines of steel, stainless steel, aluminum, bronze or copper "in mid-air."
It's developed by Joris Laarman Lab in collaboration with the Institute for Advanced Architecture of Catalonia (IAAC).
MX3D Metal evolved from this project where they used thermosetting polymers only:


Big Builder tall 3D printer from Netherlands

Technical specifications:
  • Printer exterior dimensions: 385x370x900 mm (LxWxh)
  • Printvolume: 220x210x665mm (LxWxh)
  • Material Frame: sturdy powdercoated steel
  • Frame Colours: Red,
  • Printing Volume approx: 220x210x165mm (LxWxh)
  • Print Bed: Glass plate, removable
  • Printmaterial: PLA/ABS 1.75 mm, PVA, XT,
  • Layer resolution: 0,05 mm - 0,35mm
  • Power needed: 120 watt
  • Extruder: CNC produced extruder with bearings
  • Weight: 25KG
  • Packaging: cardboard, foam,
  • Used software: all opensource, Repetier.
  • Display
  • Controller unit
  • SD memory cardslot
  • Price: €2,495 excluding VAT and shipping

Bre Pettis interview by Singularity 1 on 1

I'v been following Singularity 1 on 1 and Nikola Danaylov for some time and always enjoyed his interviews. This one is with Bre Pettis, so since it's 3d printing related, I can share it here.

From video description:
During our 1 hour conversation with Bre we cover a variety of interesting topics such as: his personal journey from being a teacher, puppeteer and popular podcaster to starting the most disruptive 3D printing company; founding the NYC Resistor hacker space and writing The Cult of Done Manifesto; MakerBot and the commitment to firmware and software updates that make your 3D printer better; why specs such as printing resolution are less important than ease of use; his desire to empower people and democratize manufacturing; the pros and cons of open source vs a startup for-profit company; copyright and the thingiverse; the limits of 3D printing and recycling the world into filament...

Source, and other interesting interviews about technology, singularity, science and future :

There are far more interesting interviews then this one with Bre, especially if you are into philosophy and technology.

BTW: this is video from beginnings of Bre:

Feb 20, 2014

mUVe open source low cost stereolithography 3d printer

mUVe epecifications:
  • Designed by Dean Piper 
  • The mUVe 1 is an open-source, low-cost stereo-lithographic 3D printer which uses 405nm UV laser to build parts' layers one at a time. 
  • No part costs more than $20 to make or replace, except the reservoir which costs around $50 pre-assembled with non-stick surface
  • uses any Arduino based controller as long as it supports the RepRap GCODE standards. It supports Marlin firmware and you have the ability to address a fan or other accessory through code
  • MicroRax frame making it modular and expandable
  • 8mm hardened steel linear rods and bearings for inexpensive smooth motion
  • build space: 145mm x 145mm x 185mm
  • Standard RepRap Electronics, Marlin firmware required so far. Standard Cartesian control system.
  • Laser Iris Diaphragm allows hugely scalable resolution, .1mm is tested and working.
  • 20mW laser is relatively low power and safer than some alternatives.
  • Replaceable non-stick coating on durable glass ensures long reservoir life.
  • Heated Reservoir
  • Outside dimensions: approx. 330mm x 330mm x 450mm or 12.75" x 12.75" X 18"
  • Priced at $1,699. Kit includes everything, the printer, 1 gallon of resin, laser cut case and tools

mUVe had a successful Indiegogo campaign: 

Project homepage:

Update (20.3.2014.):

Here is mUVe at MRRF 2014:

Micro 3D printer

Many new printers are coming up in 2014. Micro 3d should be low cost printer priced at 199-299 USD. Limited information is available with no real videos or images. There will probably more data available when it's Kickstarted. 

Technical specifications:

  • USB supports Gcode (slicer)
  • Filament diameter: 1.75mm
  • External and internal filament ports
  • Glowing LED indicator
  • Layer accuracy: 50-350 microns
  • Nozzle diamater: 450 microns
  • X, Y Positioning accuracy: 15 microns
  • Print height: 116mm (4.6")
  • Base Print Area: 109mm x 113mm
  • Print Area Above 74mm: 91mm x 84mm
  • Supports: ABS, PLA, Wood, brick, professional
  • Removable Print Bed Size: 128x128mm
Size and Weight
  • Printer Dimensions: 185mm3
  • Printer weight: 1kg (2.2 lbs)
  • Package weight: 2kg (4.4 lbs)
  • Carbon fiber rails
  • Stainless steel rotation rods
  • Glass filled ABS Body
  • Aerospace grade ceramic Micro heater technology
  • USB Compatible
  • Use M3D Micro Pinter software
  • Supports open source software
  • File Types Supported: .stl, .obj, .xyz
  • Compatible with Mac and PC

Update 2:

Micro had extremely successful Kickstarter campaign, they raised $3,401,361 pledged of their $50,000 goal. How is this possible for a machine without any realistic tests just on a promise of low price and "cool" design is beyond my comprehension. I hope they will deliver what they promised. With this amount of funding there will be completely new set of problems for them ...

They marketed Micro with "15 innovations" which are mostly non-innovations and most of them are just marketing statements or can be seen on other machines:
15 Innovations
M3D has introduced many innovations in the field of filament-based 3D printing with the introduction of The Micro: 
1. Most space-efficient 3D printer ever made.
2. Light-weight, portable design fits nicely on your desk.
3. Micro motion chip provides completely automatic leveling and calibration.
4. Most quiet 3D printer ever made.
5. Lowest power consumption 3D printer ever made.
6. Carbon fiber rods: light, sturdy, self-lubricating and long-lasting
7. Ceramic heater for rapid heat-up, power efficiency, reliability and safety.
8. Bold colors. Choose from Silver, Black, Blue, RedOrange, and Green.
9. New filament materials like Chameleon PLA.
10. Inspirational Micro filament spools.
11. Modernized touch-capable software.
12. Replaceable print beds for alternative materials.
13. Replaceable nozzles for experimenters.
14. Designed for fast assembly in the US for quality control.
15. An ABS-based print bed allows you to print larger ABS parts.
Let's see what the future holds ...

ECV One 3d printer by E-Crew Vis from France

Technical specification:
  • Fused Filament Fabrication (FFF) method
  • Dual extruder
  • Print volume: 248 x 250 x 205 mm
  • Print resolution: 70μm
  • Supported print materials: ABS, PLA, PET, PVA, nylon, HIPS
  • Heated Bed
  • Printing speed: 150mm / s
  • 7-inch Touch Screen
  • Closed chamber
  • Price: 4000 € (excluding VAT).

7 inch touchscreen used for stand-alone control of the printer

Feb 19, 2014

BigRep 3d printer with HUGE printvolume

This is one big BIG printer. It has bigger volume then Obejt 1000.

BigRep technical specifications:
  • Build volume (mm): 1147 x 1000 x 1188 (ca. 1.3 m³)
  • Resolution: 100 micron – 1 mm
  • Tool heads: 2
  • Fabrication methods: FDM 3D Printing
  • CNC Milling (optional)
  • Supported Printing Materials: PLA, ABS, PVA, HDPE, PC, NYLON, TPE, LAYWOOD, LAYBRICK
  • Weight: Printer appx. 200 kg
  • Weight: Heated Table appx. 40 kg
  • Distance Pole to Pole (quadratic):  1,575 m
  • Height (maximum): 1,585 m
  • Length: 1,665 m

The price will also be huge: 39000 USD! WOW!

Now, don't get me wrong, I would really like to see it in action, and not only on mock-ups and few photos ob printed objects. How do they handle material changes in such a huge volume? Is this even important?

BigRep PDF brochure:

Organic design table printed on BigRep

Update (212.2.2014.)

Update 2:

here is another video wit some action from BigRap printing coffee table:

3d printers at Medialab Prado Madrid

Good friends of mine went to Madrid and visited local hacklab / medialab the MediaLab Prado. Since they know I'm into 3d printing they sent me some photos of machines they use there (thnx Valent and Milijana). Hacklabs and other DIY spaces are spreading fast throughout entire Europe, even in the fringe countries such as Croatia. Our regional lab is nothing to compare to huge space of Medialab Prado (in fact it is just one small room) ...

Upgrading Sieg Mini CNC into 3d printer

CNC zone user stephenmhall published his DIY upgrade of Sieg Mini CNC mill. He made a custom printhead with Stepstruder MK7 extruder and Gnexlab controller.

Detailed CNC zone forum post:

here are two more CNC 3d printing upgrades projects:

EyewearKit for your 3d printed eyeglasses frames

Eyewear Kit offers lenses of various properties, including prescription one, for your 3d printed eye glasses frames. They offer various colors and shapes including 3d model files to help you design the frame. As I wear prescription glasses due to astigmatism, I like this concept. Products like this one could enable entire new revival in DIY eyewear and optics field.

Check other cool 3d printed glasses projects:

Feb 18, 2014

Lulzbot factory tour and Open Hardware business model

Marcin Jakubowski made series of videos with Jeff Moe, CEO of Lulzbot. He explains how open hardware approach is helping their business and gives insight in technology and production process.

Lulzbot production lines makes one TAZ 3d printer every 40 minutes

Here is link to ohai kit:

Jeff explains open hardware business model philosophy in more detail. High percentage of 3d printer users want open source machine and want easy modification of the machine. Also: why would investors give you money for something that has all the design details free on internet ...

Lulzbot printer cluster set up for 135 printers that print next generation of printers. Printers printing printers. 200000 parts printed until now ...

Lulzbot TAZ assembly process:

Lulzbot printing in Ninjaflex rubber filament:

At Aleph Objects they are very committed to open source philosophy, they internally use only open source software and made their operations manual public:

Lulzbot recently released TAZ 3:

Also check out OpenSourceEcology project which aims to develop open source kit for all machines needed for starting up civilization from zero:

Tiny homemade 3d printer from Germany

Just a printer I found on one German website. Homemade and undocumented. I like the aesthetics of the design ... it looks ... well ... German ... shiny aluminum and wires ... just cool ...

more details will be available soon ...


Tiny now has a heated bed milled out of aluminum. Heating is done by 6x 12V/40W heating cartridges as they are now often used in hotends. Dimensions are 100 x 80mm, the thermistor is immersed directly in the middle.

I contacted, the maker, Thomas and asked him is he going to open source the design, he answered:
Not sure about open sourcing it yet. Not that I don’t want to make it open, but a lot of parts where made on the fly without proper CAD modeling.
But I’m planing to swap the wood milled parts for aluminum ones as soon as the design proves to work for a few months, maybe I’ll create proper files then and publish them.
If anyone wants to build it and needs specific measures or information on the printer I’m happy to help out.

Tiny homepage in German:

Mark One carbon fiber 3d printer update and team members

Here is new video from Mark One team with them as main characters. They speak more about their printer, its properties and features, rigidity of carbon infused plastic parts, design process and vision ... nice one ...
They claim that models printed on Mark One can be used as fully functional parts due to carbon fiber enhanced properties.

Here is more detailed post about Mark One:

Exoskeleton with 3d printed parts helping disabled walk again

Watch Amanda Boxtel walk again after years in a wheelchair using the 3D printed bionic exoskeleton by Ekso Bionics and 3D Systems.


Feb 17, 2014

Most important tools you need for building and using your 3d printer

ZennmasterM has another great video about handtools you need for building and operating your 3d printer.


PBS reports on 3d printing dinner for two and 3d printing technology overview

PBS has nice article and video feature about 3d printing dinner for two ...


... and here is their overview of 3d printing technology development ...

KamerMaker starts 3d printing canal house

KamerMaker crew published on their facebook page that they started work on site on January 6th. They plan to print modular Dutch canal house.

First post about KamerMaker printing a house:

Update (8.3.2014.):

Here is video of first module of canal house, you also get a look in insides of KamerMaker and control room:

Update (25.6.2014.):

Here is AJ TV report on Kamermaker technology and building it is printing: