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DIY High Resolution 3D Printer
Written by Saikat   
Thursday, 09 December 2010 00:00

Authors: Saikat

Even though 3D printers have become mainstream and costs have declined, most cannot create a fine level of detail when printing.  For rapid prototyping, you can fabricate one yourself such as the High Resolution DLP 3D Printer.  Homemade yet still turns out impressive results.

The 3D printer uses a Digital Light Processing chip with a high resolution video projector to render each layer of the image on a resin which is cured by a UV laser layer by layer. Each 0.1 mm thick needs about 8 seconds to cure. As the photos show, the high resolution DLP projector renders pretty accurate results. Though, with 3D printing you can expect it to take several hours for each print job.

Read more: http://feedproxy.google.com/~r/hacknmod/qjUG/~3/MnZrcXArvb0/

Last Updated on Thursday, 09 December 2010 01:50
 
Derivative Design Concept: Open Source Disc Gun
Written by MakerBlock   
Wednesday, 08 December 2010 00:00

Authors: MakerBlock

Derivative Design Concept: Open Source Disc Gun

Derivative Design Concept: Open Source Disc Gun

This idea occurred to me this morning.  It’s basically a derivative of about 5 different designs (mostly rubber band related) on Thingiverse.  I’ve scanned in the entire sheet, so you should be able to print it off at full A4 paper size.  As a kid I loved these cheap plastic disc guns – but the internal plastic parts broke so easily that they were quickly trash.  I’d like to make an open source version that can be easily repaired, upgraded, extended, improved.  :)

If people like the idea, I’d be willing to do a series on the design, development, and prototyping of such a concept from start to finish.

What do you think?

Read more: http://blog.makerbot.com/2010/11/25/derivative-design-concept-open-source-disc-gun/

Last Updated on Wednesday, 08 December 2010 01:02
 
Robot Draws On Grass With A Flamethrower
Written by Evan Ackerman   
Tuesday, 07 December 2010 00:00

Authors: Evan Ackerman

This robot is called Kunstrasen. It as designed by Sebastian Neitsch to take a vector graphic and burn it into grass (someone else’s grass, probably) using a small flamethrower. I can’t find a video of the robot in action, but here’s the end result:

Um, brilliant.

[ Kunstrasen ] VIA [ Designboom ] and [ Neatorama ]

imageRead more: http://feedproxy.google.com/~r/Botjunkie/~3/sAtgsIopXlQ/

Last Updated on Tuesday, 07 December 2010 02:51
 
3d printed insect wings
Written by MakerBlock   
Tuesday, 07 December 2010 00:00

Authors: MakerBlock

Cornell researchers are using 3D printing to create tiny insect-like wings for ever smaller flying devices.  Apparently they’ve chosen 3D printing techniques for it’s precision and speed of production.  The most interesting thing I learned from the article in the New Scientist was from this quote from Associate Professor Hod Lipson, “As you get smaller and smaller the principles of helicopters don’t work, it just doesn’t scale.  The same is true for fixed winged flight.”

The sight of that little 3D printed wing flapping gizmo reminded me of two interesting winged creations.  One is the firefly bracelet by Neurothing and the other is an biomimetic artbot by Neurothing’s wife, China Blue, called the “Firefly 2.0.

 

Read more: http://blog.makerbot.com/2010/12/03/3d-printed-insect-wings/

Last Updated on Tuesday, 07 December 2010 02:34
 
Neato XV-11 LIDAR Sensor Hacked
Written by Evan Ackerman   
Monday, 06 December 2010 00:00

Authors: Evan Ackerman

Hobby roboticists now have a serious problem: which awesome off the shelf sensor do they use for 3D mapping, Kinect’s stereo camera system, or Neato’s LIDAR system, which has just been hacked wide open. Posting on RobotBox (presumably because of the sweet bounty that they threw down), Hash79 has provided video showing the raw distance output from a Neato XV-11’s LIDAR sensor:

The next step is for smart people to plug this hack into a module that the rest of us (who aren’t quite so smart) can readily access, like ROS. The step after that is to figure out how to find a Neato sensor without having to buy the entire robot. And the step after that is to go crazy and maybe speed up the motor and mount the sensor on a servo that scans up and down to get a whole 3D scene and damn this is going to be awesome!

VIA [ RobotBox ]

Last Updated on Monday, 06 December 2010 13:30
 
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