The purge pile is the problem: this printer deletes it with eight spare toolheads

· The Gadgeteer

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Multi-color printing on a regular single-nozzle machine has a dirty secret. Every swap stops the job, yanks the filament back, and flushes the melt zone clean before the next color can run. That flush goes into a purge tower or a little pile of plastic curls beside the printer, and on a print with a few hundred swaps, the pile can outweigh the model.

Toolchangers refuse to play that game. Every color gets its own print head, parked on a rail with its filament loaded, and the machine swaps heads instead of flushing plastic.

InfiMech just put two of them on Kickstarter. The prices are the part nobody expected.

InfiMech MX Toolchanger 3D Printer
Up to 6 toolheads, one per color or material · 220 x 220 x 220 mm build volume · no purge flushing between swaps
Price: $299 Super Early Bird on Kickstarter
Where to buy: Buy at Kickstarter

Watch the rail and the whole pitch clicks. A head finishes its color, parks itself, and the carriage slides down the line to grab the next one. InfiMech claims four seconds per swap. The color never leaves its nozzle, so there’s nothing to flush, nothing to cut, and no tower of waste growing next to your print.

The toolchanger at work: heads parked on the rail, swapped in as the print calls for each color. Video: InfiMech

One asterisk, because there’s always one. A parked nozzle still needs a small prime before it lays down clean plastic again, so the waste doesn’t hit absolute zero. What disappears is the purge itself, the fat flush between every swap, and that’s where nearly all the waste was hiding.

Color is only half the argument. Dedicated heads also mix materials that hate sharing a nozzle.

Rigid PLA with flexible TPU hinges. Supports in a material that dissolves or snaps away cleanly. Single-nozzle machines fake some of that with flushing; a toolchanger just prints it.

There’s a reason this pitch lands right now. Multi-color has become the default way people actually print: desk toys, signage, game pieces, gifts, and every one of those prints pays the purge tax on a single-nozzle machine. The tax was tolerable when color was a novelty. At today’s print volumes it looks like a design flaw.

Six heads on the open frame

The MX is the open-frame machine, and it’s the cheap seat in the lineup. Up to six toolheads ride its rail over a 220 by 220 by 220 mm build volume, with a 4.3-inch touchscreen up front. Super Early Bird slots are $299. Miss those and the ladder climbs through $379 and $399 to $429, so the early slots are the deal, not a detail. Six spools ride the frame’s sides, one per head.

Filament lives on spools bolted to the sides, out in the open air. Fine for PLA on a dry day. Anyone printing nylon or TPU in a humid garage will want dry boxes feeding the heads instead, and InfiMech says third-party boxes with inline outlets work.

The Pro gets a box, heat, and two more heads

Step up to the MX Pro and the frame closes. Eight toolheads, a 300 by 300 by 300 mm build volume, and a chamber that heats itself to 65°C, which is what warp-prone engineering plastics like ABS and nylon want. It also adds a closed-loop drive and a bigger 5-inch touchscreen. Super Early Bird is $549, with later tiers at $599, $699, and $749.

The MX Pro’s chamber heats actively to 65°C, the part that lets it print warp-prone engineering plastics. Image: InfiMech

Both machines share the supporting cast. Hardened nozzles run to 310°C over a bed that reaches 110°C, and the nozzles heat by induction, a coil doing the work instead of a cartridge heater, so heat-up is fast.

Blob sensors watch for plastic globbing up around the nozzle, a camera checks the bed for obstructions, and Wi-Fi is built in. The unglamorous part is calibration: eight nozzles only print as one if their offsets line up, and InfiMech says its adaptive calibration handles the alignment.

Now the claims, labeled as claims, because that’s what they are.

InfiMech rates the machines for up to 600 mm/s and 30,000 mm/s² of acceleration, flagship numbers on paper. Nobody outside the company has tested a production unit yet, so those figures ride along as promises until printers land on desks and reviewers can time them.

What a pledge actually costs

The campaign itself is not struggling. It blew through its $50,999 goal and sat around $1.42 million from roughly 2,050 backers when we checked, with pledging open until December 10. One extra from InfiMech’s own store: a $5 VIP reservation takes $50 off any tier after the campaign closes, which drops a Super Early Bird machine to $249 or $499 if you grabbed both the slot and the reservation.

Keep the crowdfunding math in view. This is InfiMech’s first Kickstarter, and the team is in Hong Kong.

Eight toolheads means eight nozzles to maintain, align, and eventually replace. None of that kills the pitch. It just means the $299 buys into a young machine from a young campaign, not a printer with three generations of owners ahead of you.

InfiMech MX Toolchanger 3D Printer
Up to 6 toolheads, one per color or material · 220 x 220 x 220 mm build volume · no purge flushing between swaps
Price: $299 Super Early Bird on Kickstarter
Where to buy: Buy at Kickstarter

If you print multi-color on a single nozzle today, you already know exactly where your filament goes, and it isn’t all on the model. Two prices carry the pitch: $299 ends the flushing, $549 wraps the same trick in a heated box, and the rail full of waiting heads is the most convincing part of either.

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