Double Micro Brass Magnetic Slider
The Bruce Charles Designs Double Micro magnetic slider is a minimalist 3X2 magnet configuration slider. It is small and light, unobtrusive in a pocket, and has both strong AND medium magnet strengths depending on which way you stack the plates. It is based on the original Micro and is designed to be great standalone or play perfectly with existing 2X2 magnet Micros.
Noteworthy Features:
- Double-sided slider for two different slider experiences in one
- Magnet strength: Medium on one side and strong on the other
- Magnet configuration: 3 x 2
- Magnet Type: 6mm diameter x 3.5mm length N52 grade
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Dimensions: 41 x 25 x 5.5mm
- Weight: 1.7 oz
- Recommended for ages 16+
- Proudly made in Dallas TX, USA, meaning...
If it’s in your hands, it started in ours!
And that pretty much sums it up! Feel free to smash that ADD TO CART button if you’re already sold—or hang around for my long-winded, hand-wavey, exuberant deep dive. This is basically what you’d get from me in person, excessive enthusiasm and all.
The Double Micro is the latest addition to our line of premium magnetic fidget sliders—a minimalist design that only includes what’s necessary: enough structure to hold magnets, surface to slide and rotate, and places to push and pull.
This piece builds on the original Micro Brass Fidget Slider—which evolved from the Robertson Brass Magnetic Fidget Slider—and now comes full circle with a 6-magnet version that blends the best features of both.
Functionally, the Double Micro feels like an 80% scale version of the Robertson, but with the same swoopy curves you know from the Micro. It’s 80% the length and width of the Robertson, but matches its thickness at 5.5mm (vs. 5mm on the original Micro). Why the extra thickness? It allows us to use the same N52 magnets as the Robertson, set at varying depths to give it a strong and soft side. (Yes, just like the Robertson. I’ll stop.)
Crafted for Precision & Durability
Each plate of the Double Micro Brass Magnetic Fidget Slider is CNC-machined from a solid piece of C36000 brass. The magnet bores are held to tight tolerances, ensuring a clean press fit—no glue required. Final magnet depth is precisely set to 0.8mm from the surface on the “strong” side, using custom jigs and fixtures.
Side tangent: One of the most rewarding (and ridiculous) parts of this work is that before I can even make the thing I designed, I have to design and build the tools to make the thing. The layers of immersion it takes to bring a piece like this to life never get old. Okay, back to the program.
Toolmarks and Patina: Built for Life
The sliding surfaces of this premium fidget slider are intentionally left with toolmarks, which will smooth out beautifully with use. Over time, the brass fidget slider will develop a polished finish, but I try to make those toolmarks as attractive as possible from the get-go. If you manage to wear them completely away, send me a photo—I’ll know just how much time that took, and I’ll be seriously impressed.
Unlike the Robertson, there’s no “+” marking to indicate the strong side. You’ll know. And there wasn’t really room for it anyway.
The Name, the Shape, and the Spirals
The Double Micro Brass Magnetic Fidget Slider is, as you might’ve guessed, based on the Micro Fidget Slider. It matches the profile of two Micros—one set of magnets overlapping—hence the name. It practically named itself.
The overlapping sections required some serious tweaking. I spent way too much time running variations, and I turned about a pound of brass into scrap just trying to get the spiral toolpath looking right. Worth every bit.
If you own a Brass or Copper Micro Fidget Slider, this next part will make sense: the outer grooves form a spiral when you stack multiple Micros. So, for the Double Micro, I had to make sure the same spiral alignment worked—no matter which side of it you stack a regular Micro on. That meant adding two grooves in the middle of the Double Micro just to preserve the spiral alignment. Yes, I might be a bit obsessive. Yes, it was necessary.
And since this version is thicker (5.5mm vs. 5mm), all the outside groove angles had to be reworked. Again—totally worth it. I’ll know it was done right. Obsessive? Maybe. You’re probably way ahead of me.
It was a blast to design, and I’m deeply grateful for all the feedback and support that made it possible. Now… on to the next one.
