Get your own full-sized, working Warhammer 40k style motorized chainsword replica that feels real, complete with motorized sounds and chainblade motion.
If you’ve ever looked at a 40k Space Marine and thought, “Cool, but I want a Motorized Chainsword replica that actually works,” you’re in the right place.
We found a working chainsword replica with a moving chain and sound, and it’s not pretending to be polite about it.
Best of all, there are two paths depending on how you like your hobby: grab the STL files and print your own monster, like a responsible adult with a pile of filament, or go with the assembled version and have an instant display piece ready to terrorize your shelf the moment it arrives.
So, if you’re deciding between “I want a project” and “I want it now,” let’s break down which version makes the most sense, what you actually get, and what to expect once you hit the switch.
- It’s a full-sized 40k chainsword replica that actually “runs,” complete with a moving chain effect and built-in sound.
- Two ways to get it: grab the STL files and print your own, or buy the assembled version for instant shelf terror.
- Both options include the good stuff: display stand, motorized chain motion, and sound effects right out of the gate.
- Printing is the real boss fight: it’s designed for FDM with minimal support drama, but a big prop means time, parts, and space (not a weekend “quick project”).
- Know what you’re signing up for: it’s listed at 1.3m long and 2.3kg (about 4’3″ and 5 lbs), runs on AAs or supports lithium/18650 power for longer sessions.
A Warhammer 40k Style Motorized Chainsword Replica Exists, Imperial Safety Briefing Not Included
Updated on February 2nd, 2026, by Rob Baer with the latest.
This sword is available in two ways: as chainsword 40k files for printing, or as a finished build you can display right away. If you like the printing side of the hobby, the files make sense. You get the project, the build process, and that “I made this” payoff.
Just be honest with yourself about desk space and time, because a full-sized prop is not a one-evening print. If you want it for display or an event without turning your workbench into a parts pile, the assembled version is the simple pick.
Either way, you’re getting a working motorized chainsword build with sound and a matching stand. There are also themed chapter options for different 40k-style factions, because not everybody wants to rock the same look.
Full-Sized Warhammer Chainsword Options (Files vs Assembled)
- Included in STL option or assembled option: moving chain effect, sound effects, and display stand.
- Plan for: space to store it, time to print and assemble if you go STL, and batteries for long sessions.
- Good fit: display shelves, cosplay, hobby rooms, and “conversation piece” energy.
Chainsword Replica: Features, Power, and Print Notes
For a 40k chainsword replica, this one focuses on the stuff you actually care about once it is in your hands. The chain moves, the sound effects are built in, and there is a battery level display, so you don’t have to guess right before you pick it up.
For the Motorized Chainsword power, it can run on standard AA batteries. It also supports 1.5V lithium batteries or an 18650 pack, and the 18650 option includes a built-in BMS board.
3D Chainsword 40k Technical Specs:
On the printing side, the parts are designed for FDM printing without external supports. Where supports are needed, they are built in and intended to remove cleanly. The STL pack also includes versions scaled for smaller printers, including a 200×200 mm bed, and updated files may be released if needed.
Final Thoughts on the 40k Motorized Chainsword
Well, we love ours. Alex Geek sent us one to help promote his Chainsword’s 40k Kickstarter, and it is a blast to have around the office.
Real talk: it is loud in the best way, the moving chain effect sells the whole thing the moment you fire it up, and the size is exactly what you want for a “this belongs in the 41st millennium” display.
The weight is manageable for posing and photos, but it is still a big prop, so plan your grip and your carry if you are taking it to an event.
If you go with the STLs, the big surprise is not the difficulty; it is the commitment. You are going to be printing and assembling for a while, and you will want the space to keep parts organized. If you go assembled, it is basically plug in (or battery up), show off, and enjoy the chaos.
Click Here to Check Out the Chainsword Options!
STL files or assembled, which would you choose and why?
