is there a fluorescence imaging channel? any possibility of overlaying fluo/white-light in the video feed?
Short answer: no. Longer answer: Raven II itself does not include imaging or environment sensing. However, RII is an extensible research platform and several sensing modalities have been incorporated. To date, none of those have included fluorescence imaging. Yet.
Great work on the virtual fixtures. Do you have a public repository of the code your working on? -Chris Loughnane
We’re currently using Mercurial to distribute and share code. However, we don’t really like the way it’s set up, so we’re looking for an alternative.
Thus we’re feverishly discussing the best way to maintain and distribute the rapidly growing (and diverging!) code base. A committee has been formed. Chairpersons have been elected. A proper, public code repository is soon forthcoming.
W are a research group in Brazil and we would like to buy one Raven II. We need to submit a project until tomorrow and it is necessary a quote for this or a proforma invoice. Is it possible? Any contact?
Yes, please contact Applied Dexterity for a quote. We should be able to get you a quote right away.
wherecan i find a basic documentation about the workings of the RAVEN II? i'm supposed to give a presentation on it in my college.
Hello, A few details about Raven II were recently presented at the Hamlyn Symposium on Medical Robotics 2012. If you’re unable to locate the proceedings, please email Hawkeye King directly and he can assist you further.
Hello is it possible to use the above image of the RavenII in a document?
Yes. Please give photo credit to the appropriate source. For most photos here that is University of Washington BioRobotics Laboratory. For photos from Berkeley and Johns Hopkins contact those groups directly to inquire about specific photo credits. Thanks!
Several groups have already received their Raven II systems. The rest will be getting them sometime this week.
For instructions on how to set up and operate your RII system, see the getting started guide on the Raven II wiki (https://brl.ee.washington.edu/ravenIIwiki/). All groups should have logins to the Wiki and to the Hg repository.
If you need more help setting up your robot, contact Hawkeye.
For those of you not in-the-know, the LSI encoder chips used on our I/O board must have the count reset following the first quadrature encoder state change (the first ‘tick’) after power-on.
This is kindof a hassle, since every time you power on the robot you must physically displace each joint to generate that first tick. I spent part of yesterday and today working on an automated sub-routine in the Raven_II initialization phase. It seems, however, that the USB driver doesn’t work well when the read-write cycle is interrupted with an additional write request to reset the encoders.
So, my idea for a workaround is a secondary applet to be run before the main robot control code. The applet will bump the encoders and reset the board. This could possibly be worked into the roslaunch script.
However, since this is a secondary task (read:feature creep) I’m putting that phase on hold and continuing my verification of the fwd/inverse kinematics functions.