✍️ DOUBLE MARKER – Color While You Print

Raise your hand if you’ve ever wanted to pigment PET strips on the fly. 🎨✋

Yeah, me too — so I built this. 💡

The DOUBLE MARKER lets you insert two chisel-tip markers (like the Snowman G-12T) directly into the top of the module.

Each tip covers 5 mm of width — so with two aligned pens, you can color an entire 10 mm PET strip in a single pass.

No need to coat strips by hand, or pause your line.

Just slide it into your CORE RAIL V1, press play, and let the system do the coloring.

🔁 Fully Modular

Same footprint and locking geometry as all CORE ecosystem boxes.

Use it before or after a Cleaner, Trimmer, or Spacer — or combine two Double Markers for dual-tone effects.

🖍️ Why Two Markers?

Because one only covers half the strip.

With two markers side by side, you get even, full-width coverage — no missed spots, no retouching.

The internal slot guides each pen into the perfect angle and height.

No measuring, no custom clips. Just plug and color.

🧩 Rail-Ready or Freestyle

Mount it onto your CORE RAIL V1, or screw it straight to your bench with two M4s.

Either way, it locks in place and holds steady.

🛠️ Minimal Build, Instant Function

No moving parts

No glue required

No recalibration

Just print, insert markers, and go

Print time? Minimal.

Plastic use? Barely a whisper.

But the results? Sharp, vivid, and ready for spooling.

🎯 Why I Built It – Shake’s Take

I wanted to add color to my PET filament without messing with pigments, resins, or sticky liquids.

Markers were the obvious answer — cheap, clean, and already full of ink.

So I designed this little tool to hold two of them tight and press color directly onto the strip as it slides by.

It doesn’t slow the line.

It doesn’t make a mess.

And when I want to swap color? I just pop the markers out.

No cleanup. No rebuild. No downtime.

This is how it’s supposed to be:

Modular. Clean. Fast.

💬 Support the Lab

👉 Downloaded it? Liked it? Used it? Post a Make, leave a comment, or just drop a 💬

Each like and repost helps the Shake Lab keep expanding with more modular tools and cleaner PET workflows.

Let’s keep building. Together.

Better color. Better control. Better filament.

Shake 🖤

🎨DOUBLE MARKER V1🎨