Dangerous Ladies' 3D models for the Ferdinand Machinists' arm.  
Model by Cole Nielsen (@_craftcentric)

.stl format. Cut for a 220mm print bed. Finishes at 26.75” long.
 
We suggest assembling the two halves (left and right) first, and then join together down the middle. 

02/04/2026 UPDATE: An LED version is available in separate folder called "Drum with Access Port. This includes a hatch in the bottom of the drum to allow access to any electronics and separate panels to be printed translucent (or omitted), for the LEDs to shine through. The hatch requires 4 magnets sized 2mm x 8mm. There is also a grooved version of the hatch door if you want to attach a pull tab. 

Assembles on the following 1/4" dowels: 
- 3x 11 inches (280 mm) (barrels)
- 1x 12 inches (300 mm) (handle to barrel)
- 3x 4-3/8 inch (110 mm) (connects lower drum)
- 1x 2.5 inches (65 mm) (lower handle)
- 2x 2-3/8s inches (60 mm) (to connect barrels)

Wooden dowels are best for glue adhesion and sand-ability.

Files include:
Renderings
.STL files

Please do not redistribute or resell. Intended for personal use only. Commercial use must buy a new copy for each item produced.

Feel free to tag us to show us what you print and make! We love to see finished works.

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DANGEROUSLADIES.CA

Manufactured by or on behalf of:
Dangerous Ladies LTD
10 Canvarco Road
Unit #53E
East York, ON
M4G 1L3
Canada

This is a digital file for use with the end user’s own materials, tools and machinery. All physical elements are supplied by the end user; nothing by Dangerous Ladies is being imported or exported under these circumstances.

Notes are written in English for an English-speaking audience, and non-English speakers understand they are purchasing a file in English. We are not responsible for any machine translation.

Dangerous Ladies Ltd. has tested that these files are accurate and produce a viable result, but is not responsible for the safety of materials used, or the end user’s technical knowledge or understanding. These files do not instruct the end user to do anything dangerous, unsafe or risky, and we encourage the end user apply common sense and best safety practices when interacting with our files.

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All files are to make art objects used in costume and prop. We have not and will never produce any functional projectile, firearm or weapon.

Dangerous Ladies Ltd. has been producing resources deliverable to EU clients since 2014. The vast majority of our products were available on the EU market on or prior to December 13th, 2024.