CylinDraw lets you easily create incredible art on any kind of cup!

(Update: CylinDraw kits are available now!)

 Over the last year, I have been developing a complex project and I am excited to finally share it!

I created a brand new type of tool that I believe can make a significant contribution toward serving the creators in the cup customization space. Especially those looking to find a competitive edge and bring something new to this market.

This is the CylinDraw, it lets you easily create incredible art on any kind of cup!

CylinDraw essentially does 2 things: It can engrave & it can draw. And it is highly adjustable so it can do those 2 things on any kind of cup. (tumblers, wine glasses, mason jars, shot glasses, mugs with handles, or any cylindrical object tapered or not under 3” diameter & 10” tall).

As a painting tool, we have experimented and perfected techniques for drawing on multiple types of materials and coating the end result to make it dishwasher safe. (Though there is a wide world of markers and coatings out there to choose from to continue experimenting with!)

 As an engraver, CylinDraw is an order of magnitude less expensive in terms of upfront/operating/& maintenance costs when compared to a rotary laser engraver, while offering better ease of use and equivalent drawing resolution. (CylinDraw operates at 0.2mm wide stroke, lasers are 0.1-0.5mm.) Engraving is also a safer cleaner process than laser etching since fumes and fire are not a factor. Lasers must be vented to the outside because of chemical byproducts (smoke), while mechanical engravers only create physical byproducts (microparticles) which can be contained with a water pump or a shop vac.

But of equal importance to what CylinDraw does, is how it does it.

Cool hardware is still a useless brick without software, and if the software sucks then its an irritating brick. But get both things right and using the tool becomes such an effective process that you can start taking it for granted. That’s when you know something has improved your life. That was the design intent. Every aspect of this tool is designed to make the user experience painless, because I think computers should just work so you can focus on the art! 

CylinDraw software is free and all-inclusive. It can convert any bitmap image like a photo or screenshot into a vector graphic (SVG) and then into a drawing-in-progress in minutes. Almost all drawings & engravings are doable in under an hour.

The system automatically makes assumptions on your behalf to streamline the process. A few examples:

  • Multicolor jobs self sort the colors by brightness so you don’t smear light colors with dark ones.
  • Drawing paths are optimized using a honed greedy algorithm.
  • SW automatically updates the motor speeds to account for cup diameter & taper.
  • Automatic connection to the tool when the USB cable is plugged in. A happy beep tells you all is well.
  • Separate user interfaces for separate functions so that all the information on screen is relevant, and the only controls you have are the ones you need.
  • No internet-of-things planned obsolescence security nightmare nonsense. CylinDraw operates entirely without internet access.
  • Custom ‘JOB’ files (machine readable g-code files) use an .svg extension so they can be viewed as thumbnails or in a browser, or they can be parsed with a viewer program that is part of the package.


Overall I think CylinDraw represents a high value proposition for what it does and I am excited to see what creative works people will come up with. I am preparing to offer kits in my store that will appeal to do-it-yourselfers as well as folks who prefer a turnkey experience.

Kit Option 1: You 3D Print + You Assemble it:  You get the 3d printable files & make them yourself. We send you all the tools, electronics & mechanical hardware. You build it using instructions online.

Kit Option 2: We 3D Print + You Assemble it: We send you all the 3d printed parts, tools, electronics & mechanical hardware. You build it using instructions online.

Kit Option 3: We 3D Print + We Assemble it:  CylinDraw comes to you tested & ready to use.

If you want to be the first to hear when kits become available then visit the project homepage and enter your email address. Doing so comes with benefits! To get this project going (& to celebrate your great taste in blog reading material) I am offering early followers an introductory special for my first batch of kits, valid in my store while supplies last.

But why cups anyway, what is so special about customizing cups?

 When I was younger every Christmas at least one person in my family would inevitably receive the gift of a new flashlight. The trend never failed and became a running self sustaining joke. 

“I don’t know what to get anyone, you’re all about to get flashlights.”

Part of the punchline was that doing so would was acceptable, since the receiver was always genuinely happy to get one. And why shouldn’t they be, a flashlight has broad appeal. It’s an all-ages, timeless, semi-durable good that’s highly utilitarian and has a wide variety of forms & sizes possible that allow it to retain the necessary degree of novelty a gift needs to be fun.

Its been a while since the family has gotten together but I’ve got next year covered since I discovered something else that meets all the criteria outlined above. Custom made tumblers are ‘the new flashlight’ gift.

 It turns out many others have discovered this too, the trend is obvious when you look. People are making some highly creative cups online and they are using a wide variety of tools to do it. 

 I’ve seen tools as simple as a continuous motor driven cup rotator for applying glitter & epoxy coatings. More advanced tools like vinyl cutters allow people to create custom sticker decals. And the most serious tools include laser engravers with rotary jigs and automated cup silkscreen machines.

All of these makers are serving a large, growing, and ultimately insatiable market because when will people ever not enjoy cool cups? (Or flashlights for that matter.)

But enough sales stuff for now. This blog is about sharing cool stuff I learn, and I learned so much from this project and next time I’m going to share some neat algorithms and more specific tools & tricks I use to automate processes.


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