NewAutoVent v2 + Spool Inspector — now shipping

Hardware
that makes your
prints smarter.

DIY kits and ready-to-install accessories for makers who want more from their 3D printers. Smart venting, filament tracking, custom controls — built and shipped from a small Indiana workshop.

2
Products in catalog
100%
Soldered + tested in-house
Free
US shipping over $75
/ 01

Made for makers

Hand-soldered PCBs, custom firmware, and DIY-friendly kits. Choose how much you want to build.

/ 02

Configure your kit

Already have a soldering iron? Skip the tools. Already have spare USB-C? Skip the cable. Pay only for what you need.

/ 03

Ships fast

In-stock components ship same or next business day. Assembled units built on demand.

/ Catalog

Shop everything

Featured hardware

Two flagship kits.
Built and tested in-house.

Pick the one that fits your printer. Both ship as fully built units, configurable DIY kits, or bare PCBs.

Filament drying

SUNLU AMS AutoVent v2

Bolts onto the SUNLU AMS heater and opens a vent flap on the back when humidity climbs. Closed-loop servo, current sensing, on-board status LED.

  • Closed-loop servo with feedback
  • Hall-effect current sensing
  • XIAO RP2040 + ADS1115 ADC
  • Open hardware, full schematics
Filament tracking

Spool Inspector

Weighs your spool, scans the QR sticker, and pushes live weight to your filament tracker. Calibrated 0.5g load cell, OV5640 autofocus camera, ready to drop in.

  • Live weight, 0.5g resolution
  • QR catalog scanning
  • Talks to 3DSpoolTracker
  • Built, DIY, or PCB-only

Ready to upgrade your printer?

Browse the catalog. Solder it yourself or order it pre-built — your call.