What is Risha?
Risha _which means feather, in Arabic_ is a new design concept for light, and portable laser cutters, that are operated via mobile phone.
Is it Risha or Resha?
Well, for the right English pronunciation, it should sound as “Reesha”, which is more or less the same if written as Risha. Mistakenly, we used to spell is as “Resha” in the first couple of month, which is why we own both domains reshalaser and rishalaser!
Who is funding Risha?
Risha started in icealex, an innovation hub based in Alexandria, Egypt, which is providing free use of machines and place, Risha is totally based on volunteer efforts of its makers.
Who developed Risha?
Please check team page for details on roles.
How did this project start?
Last November, Moushira Elamrawy approached IceAlex and spoke to the fablab coordinator that she would like to use the fablab to replicate the model of the Arduino based MicroSlicer, then interface it with a mobile application which that makes operation easy. This way we can make use of both the portability of the technology and the ease of use, in enabling people with different kind of talents of using it. The coordinator advised to make a public event, and collect a team and the event was announced through facebook. On the day of the event there were 14 attendees from different disciplines, mechanical engineers, electrical engineers, a Linux admin and an architect. On the same day, we formed teams and organized tasks, then met after 2 days, with a model for a new mechanical design that is different from the tutorial, an initial motor driver circuit, and some motors for testing. Wow! Moving forward, the team became 10 people who finished a first mockup and used it for testing motors, drivers, laser. None of the team at that time, had built a laser cutter before, so it was an interesting learning journey –thanks to opensource hardware. Currently, the machine uses a 700mW laser, which powerful enough to cut and engrave paper and fabric, which makes it ideal for tshirt engraving, and making paper origami, and any other interesting product that depends on cardboard, paper, or fabric. The 700mW could be replaced with up to 3W using the same driver. The working area of the machine is 35 x 21 cm, however, thanks to the smart design, the machine can move freely on any open area, which makes the working area almost infinite. It is also expandable, based on the length of the rods you use. Now the team is composed of Sameh Ahmed, who has totally changed the mechanical design of the machine from the previous iteration, Sherif Rashwan, who is taking care of electronics design and fabrication and who has been involved with the project from the very beginning, and Omar Enayet, who is currently taking care of the Risha application that Sherif started. We are also moving forward with developing a mobile app for Risha to support portability.
I like the project, is there room for support or further collaboration with you?
Of course, if want to join the team, or help with software and mobile development, or if you would like to donate a 3D printer to us, then please drop us a line at: email@example.com.
Join us, we are open and fun to work with.
We also like innovation and aren’t afraid of trying new things. Come, come