Dmitry Romanovich

Inventor of the World's simplest IDEX 3D printer.

The Magnetic IDEX.

[Dmitry Romanovich @m_IDEX]

@repkord done

[Dmitry Romanovich @m_IDEX]

🚀 Just finished the Zero Gravity X-axis coupling for the Akula3 motion system… and I modified this 1.5GT pulley without using a lathe at all 😎 No machine shop, no expensive equipment — just some clever DIY tricks, basic tools, and a bit of patience. Turned it into this clean dual-shaft assembly with bearings. What do you think? Should I film a full step-by-step video showing exactly how I did the pulley mod and assembly? Drop a 🔥 or comment "YES VIDEO" if you want the build! 👇 #DIY #Akula3 #ZeroGravity #3DPrinting #NoLatheNeeded

[Dmitry Romanovich @m_IDEX]

https://t.co/rCPvLM36Pm

[Dmitry Romanovich @m_IDEX]

@_William_F_ Yes! Spot on — the Zero Gravity X-axis coupling is my open-source DIY ball spline alternative that regular mortals can afford and simply print on any 3D printer.

[Dmitry Romanovich @m_IDEX]

One of the best explanations I’ve ever seen for cracked or brittle PLA filament 👏

(Not the moisture story you hear everywhere…)

Timestamp hits different: https://t.co/R0ZAN7NcJJ

What do you all think? #3DPrinting #PLA

[OrcaSlicer @real_OrcaSlicer]

We probably undersell OrcaSlicer features too much.

Did you know OrcaSlicer supports printing with different nozzle sizes?
This feature was first introduced by @fever_soft in v2.2.0-beta back in 2024 (!!). In v2.4.0-alpha, IanAlexis fixed a regression, and now it works even better.
More enhancements are coming soon!
Pro tip: use percentages for line widths.

Video below 👇

[Dmitry Romanovich @m_IDEX]

26 tooth 1.5GT pulley STEP files now available on Printables! ENJOY 🎉
https://t.co/omgHhdpH4p

[Dmitry Romanovich @m_IDEX]

https://t.co/eiPr0Q9rw5

[Dmitry Romanovich @m_IDEX]

Just added a small batch of Picolino Extruder Gears to my Ko-fi shop!
https://t.co/SEBRwlUIUS
Grab them quick before they’re gone!

[OrcaSlicer @real_OrcaSlicer]

Hey everyone — a quick note from the OrcaSlicer team.
A few of you have asked whether we're connected to a recent legal notice from Bambu Lab. Just to clear things up: that notice went to the developer of a separate, independent fork — not to OrcaSlicer or anyone on our team. Forks are a normal and healthy part of open source, and we wish that developer the best. Thanks to everyone who pinged us about this — it means a lot that you cared enough to check. Back to slicing.

[Dmitry Romanovich @m_IDEX]

https://t.co/jNKHnaokfY

[Dmitry Romanovich @m_IDEX]

Just dropped a new video on the Akula 3 Magnetic IDEX rebuild 🔥

Swapped the old IGUS bushings for a full 8mm ball bearing linear system + Zero Gravity X coupling. First prints are looking ridiculously clean.

Obligatory link in case anyone’s into high-speed IDEX builds:
https://t.co/z8vQ7YplVF

#Akula3 #MagneticIDEX #3DPrinting #ZeroGravityX #PicolinoExtruder

[Dmitry Romanovich @m_IDEX]

34 sec. update. https://t.co/3iNYhjuy6P

[Dmitry Romanovich @m_IDEX]

45g Ball Bearing X-Carriage: Zero Play, Perfect Tracking & Stepper Cooli... https://t.co/ikjrL3eq8E via @YouTube

[Dmitry Romanovich @m_IDEX]

HAPPY EASTER! He is Risen!

[Dmitry Romanovich @m_IDEX]

@__el__toro__ Wow

[Dmitry Romanovich @m_IDEX]

@quazzer Great questions!

The toolhead actually gets one bottom bearing per shaft (the full V geometry distributes the upward extrusion forces across two bearings, not just a single one).

On heat: the upper shaft is encased in a cooling jacket shared by the stepper motor, so the top 5 bearings stay close to ambient temperature.

The bottom bearing rolls on aluminum rod, so I’m hoping it stays cool too. Plastic housing has been fine so far 👍

[Dmitry Romanovich @m_IDEX]

The End of Polymer Bearings – I Built a 19g ZERO-SLOP Ball Bearing Carri... https://t.co/imMiZHCvVS via @YouTube

[Dmitry Romanovich @m_IDEX]

@Sovol3d I have four 3D printers, but at least two of them are always disassembled for testing new ideas.

[Dmitry Romanovich @m_IDEX]

@thrutheframe @BambulabGlobal In a few years, this will be standard on all printers. We just need to get around the pesky IP problem. Maybe the patents have expired 🤔