<div id="cookie_notice" class="sw-row sw--padding-2 sw--padding-bottom-1-force sw--text-center sw--bg-grey" > <div class="col-1-2 col-1-1--tab col--no-padding sw--display-inline-block sw--float-none sw--text-left sw--vertical-align__middle"> <p class="col-1-2 col--no-padding small">We use cookies to offer you a better browsing experience. By continuing to use the site you agree to their use. You can find out more about our cookies and read our privacy policy <a href="/legal/privacy-statement" target="_blank">here.</a></p> <div class="col-1-2 col--no-padding sw--text-center"> <div class="col-1-2 col--no-padding sw--display-inline-block sw--float-none"> <a class="btn-white small noty_close col-1-1 col--no-padding" data-sw-set-cookie="euCookie">OK</a> </div> </div> </div> </div>

<div class="sw--display-block sw--text-white sw--bg-dark-gray"> <div id="emailModalContentContainer"> <span class="noty_close sw--position-absolute sw--position-right sw--padding-top-3 sw--padding-right-3 icon-cancel sw--opacity-8 sw--z-index-10"></span> <div class="sw-row"> <div class="sw--position-relative sw--display-block sw--padding-3"> <p class="sw--font-size-16 sw--margin-bottom-2 sw--margin-right-6">Sign up to hear about special promotions</p> <form action="/register/email-signup" class="sw--position-relative" data-confirmation="emailConfirmationModal" data-sw-email-modal-form> <input type="text" class="sw--input-height__medium" style="width:60%;" placeholder="Email address" name="email" /> <input type="hidden" class="" name="location" value="/product/QX6FQX82D/m4-ultra-brachycephalic-headset-frame" /> <input type="hidden" class="" name="confirmation" value="emailConfirmationModal" /> <input type="submit" class="btn-primary sw--margin-left-1" value="Subscribe" /> <div id="emailModalFormError" class="text-error" style="display:none"></div> </form> </div> </div> </div>

Click and drag to rotate
M4_Ultra Brachycephalic Headset Frame 3d printed

Not a Photo

Black Natural Versatile Plastic
M4_Ultra Brachycephalic Headset Frame 3d printed
M4_Ultra Brachycephalic Headset Frame 3d printed

Not a Photo

M4_Ultra Brachycephalic Headset Frame

Made by
3D printed in black nylon plastic with a matte finish and slight grainy feel.
All orders are backed by our
All orders are backed by our
Money Back Guarantee.
Product Description
This is the Brachycephalic shape variant of the M4 frame. That means it is more appropriate for the rounder head shape commonly found in Asia and Pacific populations.

The M4-Ultra headset is compatible with the OpenBCI M4 Ultracortex system. This new frame design does not require threaded inserts in each node, since the SLS nylon process is precise enough for functional threads. This design is also stronger and lighter than a headset printed using the FDM extrusion process. Octabolt electrode assemblies are not included. Octabolt electrode kits ("Print it yourself" kit. Link does not include the headset, which you will need to purchase here), as well as the OpenBCI device, can be purchased from the OpenBCI store.

More information about headset sizing.
M4 Ultra Brachycephalic frame is currently available in Medium size. This size will still fit large and small rachycephalic heads better than any size of the standard shape:

Circumfrence: 52.6cm (Instead of 55.2cm)
Length: 17.6cm (instead of 19.2cm)
Width: 15.8cm (instead of 14.4cm)
9cm high from circumference line (same)

Cephalic index is defined by the ratio of head width to length times 100. The Brachycephalic frame has an index of 89.7, and the standard frame is 75 (mesocephalic). If you or your most frquent users have a cephalic index over 75, consider buying this version.

More about 3D printed nylon:
At this thickness, the nylon is not as flexible, but it is very tough and strong. It has a higher detail and is less prone to cracking than extrusion-printed plastics. It has a matte finish and slightly grainy feel. Due to its porosity it may be useful to seal nylon with a laquer spray, or it can be ordered in dyed material. The pure white nylon can be refreshed using 200-grit sandpaper.
What's in the box:
20 x 23.58 x 12.59 cm
Switch to inches
7.88 x 9.29 x 4.96 inches
Switch to cm
Success Rate:
First To try.
What's this?
Mature audiences only.
Sign In or Join to comment.


We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.