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3D Printer Guides

3D Printer News, Reviews, Guides, and much more!

Monthly Archives / February 2015

  • Feb 19 / 2015
  • Comments Off on Create 3D printed QR codes!

Create 3D printed QR codes!


This is the method that I use to generate a 3D model from a QR code.

1) Generate a QR code using a site like (remember, you can create a link to many things, including a website, a text message, a dropbox, etc.)

2) Save the QR to your computer. Open up an image editor and save a version as a .bmp or .jpg

3) Open up Cura, drag and drop the image file onto the bed.

You’re done! Print it out, put it on a window, and scan with your QR app of choice! Alternatively, you could save your platform as an .stl and then edit it onto something you’ve already created.



  • Feb 19 / 2015
  • Comments Off on Matter and Form 3D Scanner Thoughts

Matter and Form 3D Scanner Thoughts

matter and form scanner

I had a chance to play with the Matter and Form 3D Scanner briefly. I hesitate to call this a formal review, as my experience with 3D scanning is limited and I only had time to scan one model.

Overall, I wouldn’t say I was impressed. I’ve seen comparable, if not better results from using a Kinect, which is a fraction of the cost. For objects which do not have many features obscured by line-of sight, you’ll be able to get a decent looking model without too much effort. There are a lot of bad reviews for the MAF scanner floating around out there, but most of them are probably a case of expectations not matching with reality.

The “theory” behind the 3D scanner is simple: we know what a 3D model is, and we know what a scanner is, so we simply put the two together. However, the actual “practice” is a lot more complicated. In order to get a workable model, especially one suitable for 3D printing, a significant amount of post-processing is involved.

The first problem I encountered was getting the software to recognize the scanner. After power-cycling the scanner, software, and my laptop several times, I was finally able to get it connected. From there, the software was fairly intuitive. There was a brief calibration stage that involved identifying the darkest and lightest colors on the model, which in my case was the trusty coffee mug pictured above.

MAF software


The scanning process took a lot longer than I expected. I’m not sure if I was using the high-resolution setting, but the model had to do a full rotation at with the camera at three levels, and the whole process took close to an hour. The result (after cropping) is pictured above. Next time, I will make sure that the scanning takes place in an environment with light that remains the same color. I was next to a large window and the sun was setting, which gives a lovely reddish hue to the upper portion of the model.

Since I don’t have access to a full-color 3D printer, the discoloration that occurred was not of very much importance to me. My main goal with this scanner was to test the feasibility of “scan-to-print.”  The MAF software has an option to export directly to STL, which worked about as well as I expected. It was able to fill in the hole left from the “shadow” of the handle fairly well, but had trouble with the base of the mug, which I suspect is due to the color of that area. It also created a bulbous structure to fill the void in the interior of the mug, which sort of makes it look like it is full of a frothy latte or something. The image below is the result of the “export to STL” function, viewed in Cura.

MF Cura


I decided to print the model as is, without attempting to fill in any voids. You can use programs like MeshLab to make repairs, but wasn’t able to make much progress when I tried. Much of 3D design is still a mystery to me :-/

Below is a picture of the final result, printed at 50% scale on the Ultimaker 2.



Other than a little underextrusion, I am quite pleased with the result. I hope to have some more time with this scanner, but my first impression is that it is viable for small, simple objects, but will likely not meet expectations for many people, especially on something with a $600 price tag.


  • Feb 19 / 2015
  • Comments Off on 3D printed Music Box Customizer Helper

3D printed Music Box Customizer Helper


One of my absolute favorite things that I have printed so far is the Parametric Music Box by wizard23. It is extremely impressive not only because of its functionality, but also the fact that it is customizable! That’s right folks, you can “program” this puppy to play what ever you want! There is a helper link in his description (which didn’t play in Chrome for me, I’d try Firefox):

If you don’t feel like changing the notes and only want to change the song, though, just set up a document in notepad and copy and paste the text below:

Music Box Customizer


Xoooooooooooo = C
oXooooooooooo = C#
ooXoooooooooo = D
oooXooooooooo = D#
ooooXoooooooo = E
oooooXooooooo = F
ooooooXoooooo = F#
oooooooXooooo = G
ooooooooXoooo = G#
oooooooooXooo = A
ooooooooooXoo = A#
oooooooooooXo = B
ooooooooooooX = C
ooooooooooooo = Rest

Copy and paste your melody beat by beat, which each row corresponding to a single beat. Pin Nr Y set the total number of beats in your song. You can do multiple notes at once, so XooooooXooooo = C and G (a major 5th).

Example: Funkytown by Lipps, Inc.
(pin Nr Y = 16)


When you are done with your song, simply delete the carraige returns and copy the whole thing into the “Pins” section. Enjoy!

  • Feb 05 / 2015
  • Comments Off on Lithophanes!





lithophaneobamaMy far and away favorite feature of Cura is the ability to transform a photo into a 3D model that becomes visible when backlit called a “lithophane.” The way it creates this effect is by putting down more layers for the darker areas which allows less light to pass through. Make sure you set your infill to 100%, though. Obama ended up looking like he’s wearing a checkered suit!

I uploaded the Mona Lisa lithophane stl so you can print your own.

monalisa lithophane




  • Feb 01 / 2015
  • Comments Off on 3D printed trumpet

3D printed trumpet

3D printed trumpet

Genius reddit user HelpMyInboxIsEmpty made an amazing post on r/3dprinting today: A functional 3D printed trumpet. The only pieces that weren’t 3D printed are the rubber bands and the springs in the valves. He even shared the STL files: Printable_Three_Valve_Trumpet

Thingiverse link:

Link to a mouthpiece below. I’m  not sure if it is optimized for this trumpet.

According to the designer, the 3D printed mouthpiece works as well as, if not better than, the metal ones. The trumpet, well, is a work in progress, but impressive none the less.