Maker Builds a 3D Printed Camera Battery Emulator

Philip Crump

Philip Crump

Philip Crump is a recent graduate of the University of Southampton with a BEng in Electronic Engineering who’s also into amateur radio, electronics, and programming.

While his full-time gig is as a Lead Hardware Engineer at Telemetricor Limited, he’s also a Volunteer RF Engineering Consultant for Southampton University’s UOS3 Cubesat Project. Along with all those pursuits, Crump is also a photographer who needed a camera that would operate in the low temperatures environment encountered at altitude.

But here’s the problem: Crump was disappointed when he did cold-temperature battery tests with his Canon SD1000 camera. It seems once the batteries in the camera were chilled, they’d only operate for some 34 minutes at a time versus the nearly five hours they’d function at room temperature.800px-20150113-somakeit

So Crump used 3D printing to build an alternative power supply solution that would work in icy temperatures. His Canon SD1000 doesn’t accept being powered up via its USB port or provide additional accessory sockets, but fortunately, the camera’s battery door does include a hole for wiring. So Crump built what he calls a “fake battery” for the camera which uses a DC supply. As the balloon which would carry his camera aloft already includes a battery pack, Crump’s plan was to tap into that source to power his camera.

That led the designer to create a 3D printed battery emulator that takes the place of the stock battery pack. Bare contact wires inside t300px-20150113-print2-printerhe holder run out of the camera and then to a voltage regulator which converts the six-volt output of the balloon battery pack down to the 3.9 volts his camera needs to operate correctly.

Crump says one major challenge of the project was to be certain that his design worked to make a reliable connection with the battery contacts deep inside the camera. His answer was to build a 3D printed, battery-sized holder that would fit snugly in the limited space available.

He got in contact with the guys at So Make It, a Maker and Hackerspace in Southampton, who let him usea Lulzbot Taz and print the model he created in OpenSCAD. You can check out Crump’s solution and find out where to get the files at his website,

Have you heard of, or created yourself, a solution to a problem with an existing product using 3D printing? Let us in on your solution in the 3D Printed Camera Battery Emulator forum thread on


[Via: HackaDay]

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3D printer maker Stratasys cuts profit forecast after GrabCAD deal


Nov 5 (Reuters) – 3D printer maker Stratasys Ltd
cut its profit forecast for 2014, citing its recent acquisition
of computer-aided design systems developer GrabCAD and ongoing
development costs.

Stratasys’s shares were down 7.7 percent in premarket
trading on Wednesday as investors shrugged off the company’s
better-than-expected third-quarter revenue and profit.

Stratasys completed its purchase of GrabCAD on Sept. 23. The
financial details of the deal were not disclosed.

The company reaffirmed its full-year revenue forecast of
$750 million to $770 million, but cut its profit forecast to
$2.21-$2.31 per share from $2.25-$2.35.

Analysts on average expect a profit of $2.30 per share on
revenue of $759 million, according to Thomson Reuters I/B/E/S.

Stratasys reaffirmed its revenue guidance of $750 million to
$770 million.

The company reported a 62 percent jump in revenue for the
third quarter ended Sept. 30, helped by strong demand for its
MakerBot-branded consumer products and services.

Revenue from MakerBot increased by more than 80 percent
compared with the same quarter of 2013.

Stratasys, which has traditionally sold industrial printers
for $15,000-$750,000, bought MakerBot last year to offer
printers starting at just over $1,000.

Industries use 3D printing to make prototypes and
specialized tools, moldings and some end-use parts, but there is
growing demand for home 3D printers that can churn out simple

Stratasys said last week it holds about 55 percent of the
market for printers priced over $10,000. It said it has about 35
percent of the market for desktop printers sold for under
$10,000, largely through its MakerBot branded printers.

Stratasys executives, citing industry research, have said
the global 3D-printing market is expected to swell to $21
billion by 2020 from $3 billion last year.

Hewlett-Packard Co said last week it had developed
3D-printing technology that can print 10 times faster and at
considerably less expense than current products, and that it
plans to launch the technology broadly in 2016.

The news sent Stratasys’s shares down 3 percent.

The net loss attributable to Stratasys widened to $31.3
million, or 62 cents per share, in the quarter ended Sept. 30,
from $6.6 million, or 16 cents per share, a year earlier.

Net sales rose to $203.6 million from $125.6 million.

Stratasys shares were trading at $111.89 premarket, down
from their Tuesday close of $121.25. Up to Tuesday’s close, the
stock had fallen about 10 percent this year.

(Reporting By Arathy S Nair and Anya George Tharakan in
Bangalore; Editing by Ted Kerr)

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