fischertechnik Minebea NEMA 17 stepper motor case

Changelog:
2020-02-19: I granted an exclusive permission to Peter Habermehl for selling prints of these stepper cases in his shop at www.mintronics.de.
2020-01-29: Improved top and bottom case parts according to my current design principles (v4). Older version (v3) preserved for reference (images at the end of the gallery).

Enclosure for Minebea 17PM-K374BN01CN 38mm NEMA 17 stepper motor, currently sold by Pollin for less than 5 3 €. The 45x45x45mm case makes the stepper motor compatible with the fischertechnik construction toy system. It might also fit for other NEMA 17 steppers with a height of 38mm.

The 3mm squared axle of this Minebea stepper allows mounting some fischertechnik parts directly with a reasonable grip (see image 5). Nevertheless, I included some adapters for the most important fischertechnik connectors (gear Z10, clip on axles, bigger gears, worm gear). Use a 3mm headless screw to attach them more permanently. Use a drop of super glue to keep both parts of the case attached permanently.

See them in action in this video: https://youtu.be/MyCck4btWzE

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Find my other fischertechnik designs here.

Print Settings

Printer Brand:

Anet

Printer:

No

Supports:

.1 / .2 mm

Infill:

any PLA any

Notes:

The enclosure top also needs supports for the screw holes. However it can be a pain to remove supports from the neighboring fischertechnik grooves, which print well without supports. I recommend using Cura's new (but clumsy) feature for blocking supports to prevent this.

Category: Construction Toys