#Project: #HowTo Make a #laser tripwire with a #RaspberryPi
In this resource you will be making a laser tripwire. This can be used as a way to catch unwanted intruders coming into your bedroom, or as a game to see if you can avoid triggering the trap.
#Sunrise Version 2.0 – an #opensource #DLP #3DPrinter project by BQLabs. The Sunrise Project is a research project, that aims to design an Open Source hackable DLP based 3D printing system.
DLP 3D Printing uses photopolymierizing resin to craft the parts. Parts generate layer by layer as they are cured by a projector that outputs the cross-sections of the part, into the resin. There are various mechanical structures that can be used to achieve this.
This machine has what is called a Bottom-Up structure. It has a vat, with transparent bottom, filled with resin. Underneath, an upward pointing DLP projector shoots light through the bottom window. The light striking on a downward pointing build surface cures the resin, forming a new layer. Repeating this process, curing one layer below the previous one, ends up crafting the whole part, upside down.
MicroSlice V1 – A tiny #Arduino #laser #cutter
#Autodesk #OpenSources #Ember #3DPrinter #Electronics and #Firmware
On Sep 21, 2015 released Ember’s electronics and firmware are now open-source and are available for you to download, inspect, modify, and make improvements. The electronics are shared under a Creative Commons Attribution-ShareAlike license, the same license under which we’ve shared Ember’s resin and mechanical designs; the firmware is licensed under GNU GPL (see the source code itself for the full details).
Sinterit $8K #SLS #3DPrinter
SLS printers builds objects by fusing nylon powder with a laser, producing things with much better quality than filament-based printers. SLS printer, capable of producing objects with no supports, and multiple objects per print run.
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#MakerCase – Easy and Customization #Laser Cut Box/Case Design Generator
MakerCase is a web-based application for designing laser-cut project cases, runs in a web browser and automatically generates a blueprint for laser cutting based on the users specifications. The user enters the desired case dimensions and material thickness, and
MakerCase lets users create cases with flat edges or interlocking edges using finger joints or t-slots for retaining nuts and bolts.
MakerCase automatically generates a three-dimensional model of the case that can be freely rotated.
When the case design is complete, the MakerCase flattens the three-dimensional model into blueprint and generates an SVG file that can be sent directly to a laser cutter. For cutting, MakerCase can be configured to compensate for the beam width of the laser and convert any engraved text into vector paths.
Site Link: MakerCase – Easy Laser Cut Case Design.
Useful in everything from particle physics to data encoding, lasers have proven useful in a multitude of fields since Theodore H. Maiman built the first of such devices in 1960. Interestingly, few people realize that the word “laser” is actually an acronym for “light amplification by stimulated emission of radiation,” and that white lasers have never actually existed — at least, until now. Researchers from Arizona State University have demonstrated that a new kind of semiconductor is able to emit laser across the entire visible light spectrum, unlocking a potential in lighting and light-based wireless communication.
An LED-based Li-Fi system is approximately 10 times faster than Wi-Fi, whereas one centered on white laser can reaches performance levels of 10 to 100 times faster.