The EggBot is Back, and it’s better than ever. Bantam Tools is spreading holiday cheer with the launch of the Bantam Tools EggBot™ Ornament Edition, a drawing machine designed to transform blank glass spheres into unforgettable custom ornaments you’ll take delight in unpacking every year for decades to come. Available Now.
Category Archives: Engineering
Introducing the Bantam Tools ArtFrame™
The plotter adventure continues at Bantam Tools!
Bantam Tools proudly announces the launch of the new Bantam Tools ArtFrame™ Art Machine System—designed for professional artists to create physical art from digital designs with traditional materials.
Key Features:
- Professional Results: Trusted by artists, galleries, and museums to create professional grade artwork.
- Quiet, High-Performance Operation: Custom-designed electronics and a magnetic, sound-dampening work surface let you focus on your next standout creation.
- Two Size Options: Choose between the Bantam Tools ArtFrame 1824 (18×24” travel area) and the larger Bantam Tools ArtFrame 2436 (24×36” travel area).
The Bantam Tools ArtFrame prototypes created thousands of drawings at the Whitney Museum of American Art. Engineered and manufactured under leadership of the Evil Mad Scientist team in Peekskill, NY.
Learn more at bantamtools.com
Hidden line removal for AxiDraw

We’re pleased to note the release of AxiDraw software version 3.9 this week, with a couple of neat new features. One of them is that the “preview mode” button — which lets you simulate plotting to see how the results will come out — is now accessible no matter which function is selected. The other, the big one, is that AxiDraw now supports hidden-line removal as a standard feature.
There’s a full changelog up on GitHub, which also notes a few new features for users of the AxiDraw CLI (command-line interface) and AxiDraw Python library, including the ability to resume a plot a little before where it was paused.
But, let’s talk more about hidden-line removal.
Continue reading Hidden line removal for AxiDraw
Open Circuits: Now available
Earlier this year, I wrote about my then-forthcoming book, Open Circuits: The Inner Beauty of Electronic Components, co-written with our regular collaborator Eric Schlaepfer.
Open Circuits is a coffee table book full of close-up and cross-section photographs of everyday electronic components. And, it’s now shipping! As of today, it’s available in hardcover from your local bookstore, as well as to purchase online and in electronic versions.

We also just launched a new website for the book, with links of where you can purchase it as well as lengthy galleries of images from the book and of outake photos.
We put up a list of sellers on the website, including direct from No Starch and our own store, where signed copies are available.
Flickery Halloween Fun
Shane from Dark Illusion Studios shared this video using our candle flicker LEDs to make skull sconces. Our flickering LEDs are great for lots of different Halloween projects.
If you still need some inspiration, check out our Halloween Project Archives:
Halloween is one of our favorite holidays, and … we’ve organized dozens of our Halloween projects into categories: costumes, pumpkins, decor and food.
Open Circuits
I’m very pleased to announce my forthcoming new book, Open Circuits: The Inner Beauty of Electronic Components, co-written with Eric Schlaepfer.
Open Circuits is a coffee table book full of cross-section photographs of electronic components, along with photos of those components in context, and descriptions of how they work. It’s coming this fall from No Starch Press, and is available now to pre-order.

From the rear cover:
Open Circuits is a photographic exploration of the surprisingly beautiful design waiting to be discovered inside everyday electronic devices. Through painstakingly prepared cross-sections and stunningly vivid close-up images, the book reveals a hidden world full of elegance, subtle complexity, and wonder. From simple resistors and capacitors, to cutting-edge circuit boards and retro Nixie tubes, the authors’ arresting imagery transforms more than 130 electronic components into awe-inspiring works of art that will delight engineers, artists, designers, and photography enthusiasts alike.
My co-author Eric Schlaepfer has been our regular collaborator on projects such as the Three Fives and XL741 soldering kits, as well as the MOnSter 6502 and our Uncovering the Silicon project.
Open Circuits is coming this fall in hardcover, and is available now with a pre-order discount and early-access PDF from No Starch Press.
It’s also available to pre-order at your local bookstore — who we sincerely encourage you to support — as well as Amazon, Barnes & Noble, and other major booksellers.
Three Fives Kit in DIYODE Magazine

DIYODE Magazine is celebrating the 50th anniversary of the 555 and used our Three Fives Kit for an accompanying build.
It’s awesome to see this workhorse of a chip getting well-deserved attention, and we love seeing our kit included in the festivities.Custom aluminum Bulbdial Clock case

Guy made a custom clock case out of aluminum for our Bulbdial Clock kit. It turned out beautifully! There are some really nice pictures of the design and build process, so definitely go check out his post.

Thanks for sharing your build, Guy!
The AxiDraw MiniKit 2
Today we are introducing a major refresh of the smallest member of the AxiDraw family of pen plotters: the new AxiDraw MiniKit 2. The AxiDraw MiniKit 2 is our special compact DIY-kit version of the AxiDraw lineup.
Versus the original AxiDraw MiniKit, the MiniKit 2 has been redesigned for easier assembly, better precision, and higher performance. The key change is that the long linear rail that forms the base of the machine — a custom aluminum extrusion in the original — has been replaced with a solid bar of 6061-T6 aluminum, machined in the same precision process as our top-of-the-line AxiDraw SE/A3, and then anodized to a satin-silver finish. This change simplifies a number of the assembly steps, but more importantly has a cleaner overall look and tighter manufacturing tolerances for improved precision.

In addition to be being “Mini”, the MiniKit 2 is also still a kit.
Unlike other models of the AxiDraw family like AxiDraw V3 and AxiDraw SE/A3 (which come assembled, tested, and ready to use), the AxiDraw MiniKit 2 is a machine that you assemble yourself.
We’ve taken great care in designing a kit that is rewarding to build, own, and use.
The new version is also heavier than the old one, which helps it to stay stable on your desk at higher speeds and gives it a small boost in effective speed, in addition to the upgrades in precision. Small but sturdy, The MiniKit 2 is built with machined parts, just one custom aluminum extrusion now, attention to detail, and care.
An EggBot Brunch Party

Heather Seeba wrote in to let us know about a gathering she has hosted around the EggBot.

The EggBot brunches have been big hits with my friends. Seeing the fascination and excitement showing new people my EggBot has to be my favorite part of playing with it. The inspiration came when I took the ‘bot to my (engineering) office so colleagues could make eggs for their kids: people were skeptical then couldn’t stay away. Thus for an EggBot brunch, invite awesome nerdy people over, feed them, and gather round the EggBot.
Heather told us about her events earlier this year, before the advent of physical distancing. Many of her suggestions can be adapted for family groups living together and we’ve added some suggestions for remote attendees as well.


Some recommendations for an EggBot brunch include:
- Print outs of suggested (speedy) designs will engage interest quickly.
- For in-person attendees, buffet and easy lap food works better than a sit-down meal so the focus can be on the drawing.
- For remote attendees, have a camera set up pointing at the EggBot so they can see their design being drawn.
- Print some outline designs in advance and let folks color eggs if they like.
- Make a photo shoot station for guests’ creations. Flower pots with herbs and blossoms are a great example.


The photo booths can be used even for eggs decorated without the EggBot!




