Lumi: Linux Mint T-Shirt

Introduction: Lumi: Linux Mint T-Shirt

About: A geek traveling the world!

First, I must truly thank Instructables and Lumi for this awesome chance to try out such a cool product! I can see way too many uses for it :)

I am generally not one for advertising companies for free (or rather paying THEM to advertise for them....see any Nike or A&F shirt) but when I find a product that truly gives back to the community, I have no problems letting others know about it. That being said, I decided to make a t-shirt to display my love for Linux in general and Linux Mint in particular. Same applies for using Gimp to create/edit the images.

Tools needed:

- Linux Mint OS (, free)
- Linux Mint Logo (see attached file)
- Gimp (, free)
- I've linked the Gimp XCF for this project as well.
- One Lumi Kit (, free with promo event, $29.95 otherwise)
- T-shirt (or any other cloth surface really. I got 3 T-shirts for $3ea from
- Sunshine (outside, free)

So, behold my grand creation, the Linux Mint logo T-shirt, now with added attitude slogan!

Umm...err.....didn't quite work out as planned....ah well, such is life and donuts.  Next one will be better.

Step 1: Using Gimp

Gimp is pretty awesome and with the tons of tutorials online, doing anything becomes easy enough.

So first I Googed the Linux Mint logo, found one in decent size. Then imported it into Gimp, changed its colors to grayscale, and inverted. That's the easy part.

DropBox link to PNG:

Next I added some text. The problem with creating a negative is that you always have to keep in mind that anything you do will be inverted. This is mostly true but that doesn't mean creating white text on a white background will produce black text! Not that I know from experience or anything....

DropBox link to PNG:
DropBox link to XCF:
DropBox link to PSD:

Ok, so now we have a simple negative to print. Sadly I don't have a printer at home but I do at my workshop. So I go there and test print....the printer has a problem. Well that sucks. Oh, and I forgot the t-shirts at home too, which is too far to just go and get. Sigh. Ok, so I go back home, and take the images to a printer to print for me. But wait, the white yet won't print out (err....experience....). Luckily I am closer to home. Back home I go to edit the image again. Now we have a proper image to print.......ohhhh, look at that, the printer guys have gone out for lunch. Ok, of to a nearby coffee shop and wait for 45mins.

Step 2: Using the Sun

Despite it being an overcast day, I did see the sun poking it's head out in bits and pieces.  I quick search on Lumi's website to verify that it's actually UV light that does the 'dyeing' process, I was ok with a cloudy day.  Yes, those warnings of 'sunscreen on cloudy days' do have weight to them.  The dye changed colour almost as fast as I was putting it on!  Lesson learned, prep your stuff INSIDE before heading outside if you want a clean difference.

So there it is, with the printed sheet over the t-shirt.  This was taken within 5mins of it being setup.  The colour changes pretty quickly when exposed.

Step 3: The Finished Product

Due to severe lack of space in my apartment, I don't have a printer.  So I took the sheets to a local printer and had to explain, with some difficulty, what I was trying to do.  This was a slight challenge because I live in South Korea and my Korean isn't quite up to par, let alone trying to explain any type of complex ideas.  Still, I got them to understand that I don't want the sheets to go through their expensive fax/copier/printer machine, just an ink-jet printer would do fine.

The guy thought the logo was too dark and lightened it up some.  I thought the end result would be fine but alas, it was still too dark.  Ah well, lesson learned.  Easily fixed for a second printing though.  Attached is a pic of the shirt after hand-washing twice in hot water.

Thanks again Instructables and Lumi!

Print & Dye Contest

Participated in the
Print & Dye Contest

Be the First to Share


    • Baking Contest

      Baking Contest
    • Cold Challenge

      Cold Challenge
    • Make it Glow Contest

      Make it Glow Contest



    7 years ago

    Hey there, fellow Mint user and printer of T-shirts. High five!


    Reply 7 years ago


    Hello fellow European country resident! :) (Currently in the UK, looking to change my visa to stay longer, should happen next year)