terraPin ACE Pinhole Camera, Lulzbot Edition by schlem

Last crawled date: 3 years ago

The terraPin ACE, Lulzbot Edition, pinhole camera is the culmination of years of my 3D printing and camera design work. I love my Lulzbot Taz4, and the ACE prints beautifully on it. This compact design will even print on the smaller Lulzbot Mini. The ACE uses 120 film, and shoots sixteen 6X4.5 exposures per roll of film. It is the little brother to the terraPin ACME and snaps together WITHOUT ANY FASTENERS, using sliding joinery. With the exception of the pinhole (which is easy to make), all parts can be 3D printed. Additionally, a standard tripod thread (1/4-20) is provided by a high-strength, replaceable printed insert or a metal flanged nut.
120 film, also known as "medium format" film, is widely available at photography supply shops and on the internet (Amazon, B&H, Lomography, eBay, etc). If you don't have a local photo lab (and don't develop your own films), you can mail your film away for processing.
The ACE is designed for a 0.23 mm pinhole, but 0.20 mm will work just as well, albeit needing a little bit more exposure time. I make my own pinholes (and you can too!), but you easily can buy a laser-drilled pinhole from many vendors on the Internet.
Pinhole Diameter: 0.23 mm
F-Number: f/135
Pinhole Diameter: 0.20 mm
F-Number: f/165
Exposure charts for f/135 and f/165 are included for common film stocks in the "Thing Files" for download.
I archive all photos I shoot with the ACME family of pinhole cameras on Flickr.
Hey Dual-Extruder Lulzbot Users!
Included, at the bottom of the Thing Files, are two STLs intended to be 3Dprinted simultaneously with a dual-extruder printer:Dual_Color_terraPin_ACE_Lulzbot_Body.stl
Dual_Color_terraPin_ACE_Lulzbot_trim.stl
I suggest that the "body" STL be printed in an opaque black, and the "trim" STL be printed in Lulzbot Green. This is experimental, in that, lacking a dual-extruder printer, I cannot test this before releasing it to the wild. Any feedback on the printability of these files most welcome!
You can learn more about pinhole photography basics in the mini-zine "Pinhole Photography Short & Sweet" (download PPSS.pdf, in the "Thing Files" section)
Hey! Read This!
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