15% Off Multi-Color Polyjet with code "NEWJ750" at checkout

<div id="cookie_notice" class="sw-cookie-notice sw--padding-vert-4 sw--padding-hor-1 sw-dms--box-shadow--big"> <div class="sw-dms--color-white sw-grid-flex sw-grid-flex--wrap-mob sw-grid-flex--wrap--tab"> <div class="sw-cookie-notice__text--mob sw--padding-left-8 sw--font-size-14 sw-grid-flex__cell-5-7 sw-grid-flex__cell-1-1--mob sw-grid-flex__cell-1-1--tab"> We use cookies to offer you a better browsing experience, including personalized advertising. By continuing to use the site you agree to their use. <a href="/legal/privacy-statement" target="_blank">Learn more</a> </div> <div class="sw-grid-flex__cell-2-7 sw-grid-flex__cell-1-1--mob sw-grid-flex__cell-1-1--tab"> <a class="sw-dms-button noty_close sw--padding-hor-7 sw--position-absolute sw--position-right sw--margin-right-13 sw--hide-mobile sw--hide-tablet" data-sw-set-cookie="euCookie">OK</a> <a class="sw-cookie-notice__btn--mob sw-cookie-notice__btn--tab sw-dms-button noty_close sw--padding-hor-7 sw--margin-vert-3 sw--hide-desktop" data-sw-set-cookie="euCookie">OK</a> </div> </div> </div>

Click and drag to rotate
1:48 O Scale Exhaust Fans - 1A 2A V2 48ea 3d printed

Not a Photo

Smooth Fine Detail Plastic
1:48 O Scale Exhaust Fans - 1A 2A V2 48ea 3d printed
1:48 O Scale Exhaust Fans - 1A 2A V2 48ea 3d printed

Not a Photo

1:48 O Scale Exhaust Fans - 1A 2A V2 48ea

Made by
3D printed in matte translucent plastic that showcases fine and intricate details.

Have a question about this product?

contact the designer
Product Description
The models were designed following an article from the Kansas State Agricultural College Bulletin – Volume IX April 1, 1925 Number 3 Comparative Tests of Automatic Ventilators – This was a test of automatic ventilators which the test divided into four classes – plain stationary, stationary siphoning, plain rotary, and rotary siphoning. From page 14, I used the Type 1A and 2A plain stationery for my models. Pages 18 and 19 has dimensions of the ventilators and diagrams.

While I designed my models for O scale I presume that they can be used in other scales. The full-size ventilators are only 17 in. dia. In HO this would be 30 in. dia.
What's in the box:
O Scale 1A 2A V2 48ea
8.46 x 12.85 x 0.93 cm
Switch to inches
3.33 x 5.06 x 0.37 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.