HacDC was selected as one of 32 hackerspaces to win a brand new LulzBot Mini 3D Printer with supplies and support in the LulzBot 4th Annual Hackerspace Giveaway. The LulzBot Mini will substantially contribute to HacDC’s growing modern toolset, including 3D printers, CNC Milll, and Laser Cutter. If are are interested in 3D printing or would like to learn more about it, be sure to join Julia Longtin for her weekly 3D Thursdays. Also consider joining HacDC’s IRC channel.
Thank you to LulzBot and their continued support of hackerspaces everywhere!
HacDC member Julia Longtin will give a talk at the upcoming 31st annual Chaos Computer Club Congress in Hamburg, Germany, Earth, Milky Way. She will lecture about a process she has been perfecting over the past year for 3D casting aluminum parts via the lost PLA method using repurposed consumer microwave ovens to liquify the metal.
We use microwaves to cast aluminum from 3D printed [PLA] objects. This gives us the ability to cast high quality 6040 aluminum pieces using a 3D printer and commercially available consumer microwaves.
We manufacture microwave safe kilns for melting aluminum. We create microwave transparent molds that allow us to burn out plastic without heating the mold itself there[by] creating a quicker method of accomplishing the lost PLA process.
Julia‘s process is being developed as a contribution to the larger FOSSCar initiative, which aims to use an open source production and development model and recycled materials including refurbished and repurposed off-the-shelf technology to fabricate a road-worthy car.
HacDC community member Julia Longtin and collaborator, Mason Mooney, have been developing a fascinating method to 3D print aluminum via a lost PLA method. It is remarkable for its use of commonly available consumer products such as microwave ovens, sugar, and hair spray. They have posted it to Hackaday and we are sure you'd agree that it deserves as many up votes as possible! Please spread the word if you agree!
“Our system uses consumer microwave units to perform burn-out of PLA from molds, and a second microwave to liquify aluminium, to be poured into the mold. 3d printer inspired mechanics will move the aluminium from the microwave, into the target mold under human control across the network, so that there is no risk to the person operating the machine.
“Lost PLA is usually dangerous, and time consuming. with this, we can go from [PLA] printed part to cast aluminium part in 3 hours!”
UPDATE (8/20/14): Julia et al. made the front of Hackaday!
“The Adaptive Services Division of the DC Public Library will host a
Mini Maker Un-faire DIY (Do It Yourself) Fair in the Great Hall of the Martin Luther King Jr. Memorial Library on Saturday, Nov. 17 from 10 a.m. to 3 p.m. and on Sunday, Nov. 18 from 1:30 p.m. to 4:30 p.m. The Library is accessible from the Gallery Place and Metro Center subway stops.” More…
HacDC will be among the participating organizations at this event.
Admission is free. Register at http://dcdiyfair2012.eventbrite.com/