|
 | | Re: articulation points?
|
| (...) Very interesting thread. A bit OT (and picky ;) mabye, but about the human arm: If you examine your arm closley you'll find that the rotation of the hand actualy comes from the elbow witch rotates the under arm. The wrist only actes as a dual (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: articulation points?
|
| Not to be a goof, but, OMG! Bram is Crazy Smart! I gotta go a take some more vitamins and drink Carrot Juice! Ahhh! I see the concept much the same, I figure if we refer to a POA in a Mecha model as the counting scheme, we won't get alot of run away (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: articulation points?
|
| You present interesting aspects of the term, could it be that the term has many meanings and really if we understood it correctly we would do justice to the proper meaning. Context is everything, yet you raise ideas and examples that indeed (...) (23 years ago, 20-Nov-02, to lugnet.robotics)
| |  | | Re: articulation points?
|
| (...) It seems so, Jenifer has brought to light that the two don't always correspond, and or there can be differences. It's pretty interesting, although I never really thought about it seriously before, I just build stuff. ;) (...) Well, more so (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: articulation points?
|
| o.k. so let me get this right: poa doesn't necessarily dictate dof. poa refers to the axes a given object can rotate around, but dof refers to the limitations (or lack thereof) in space a given object can move around in. according to eric, i may use (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: articulation points?
|
| Everything I've ever seen mentioning DOF refers to absolute reference points (a focus, if you will, or origin) that the range is controlled by. In terms of articuation, each DOF corresponds to a joint, which is a fixed focus point that the range (...) (23 years ago, 20-Nov-02, to lugnet.robotics)
| |  | | RE: articulation points?
|
| (...) However, a device is made up of several objects. Each component, if treated separately, has six degrees of freedom. Thus each component of, for example, the human arm (reduced to an upper arm, lower arm, and hand) has 6 DOF, for a total of 18. (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: articulation points?
|
| (...) Oh? Hmmm...do tell. (...) Right! I see. In my own way I work around certain "movements" or joints by making two separete joints cover the same envelope or Area or Control. I mean in that, for example. The Arms of my Super Mech-Bot don't have (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: RIS 1.5 $99
|
| "Jeroen Stap" <lego-robotics@crynwr.com> wrote in message news:012501c29015$0d...ntiumIV... (...) You should check BrickLink in a couple weeks.... that is if you don't mind paying for shipping costs. I would be happy to buy a couple extra if there (...) (23 years ago, 20-Nov-02, to lugnet.robotics)
| |  | | Re: articulation points?
|
| (...) Pedant's corner: This reminds me of an argument I've had several times, and to be honest have yet to come to a definitive answer. The maximum number of degrees of freedom an object can have in three dimensional space is six; translation in the (...) (23 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
| |  | | Re: BrickOS & Cygwin
|
| (...) You bet. I've fixed this in CVS so it will be in our next test release. Thanks for reporting it. (This is why we do test releases ;-) Regards, Stephen -- Stephen M. Moraco stephen@debian.org (23 years ago, 19-Nov-02, to lugnet.robotics.rcx.legos)
| |  | | Spybotics guts
|
| Gigamesh has experienced exploratory surgery: (URL) a bunch of pictures right now, but better than nothing. The whole endeavor was spawned from the insane idea of using a DV camcorder to take the pictures because I can't seem to hold still with a (...) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Re: Legway <-> Segway ??
|
| Well, I'd like to think Dean Kamen copied my idea, and converted into a life size model which he sells and I make lots of money for each one he sells... But that's not the case. LegWay is only about 1 month old, while Segway is > 1 month old. LegWay (...) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | RE: RIS 1.5 $99
|
| Thank you Richard. This tidbit of information just put $20 in my pocket. I called eToys / KBtoys and mentioned this price difference, and received a credit. No questions, no hassle, no nonsense. My appreciation and thanks goes to eToys for their (...) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Re: RIS 1.5 $99
|
| Too bad they don't do international shipping, I would have loved to buy several of them and send them to Holland... :-( Jeroen (...) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Legway <-> Segway ??
|
| Can anybody make it clear for me; what came first? The Legway or the Segway ? For those who don't know what I'm talking about: Legway -> (URL) -> (URL) looks funny. The Segway is too expensive for me, at this time... Legway looks more like something (...) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Re: RIS 1.5 $99
|
| (...) Use the coupon code SEARSTOYS and get $10 off that. Plus they have FREE shipping, so the total cost comes to $90 shipped! Now you can truly enjoy! Ram (who bought one) (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Re: RIS 1.5 $99
|
| (...) How can they *not* ship to Canada? I was going to buy a few, but no Canadian orders... Oh well. Dave K (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | RIS 1.5 $99
|
| RIS 1.5 is $99 at KBtoys.com. I've never seen them that cheap! Enjoy! (23 years ago, 19-Nov-02, to lugnet.robotics)
| |  | | Re: BricxCC release 3.3.6.5 - BrickOS support
|
| (...) <snip> How does the Spybotics book look? Is it as you hoped? I'm looking forward to getting my hands on a copy--may have to drive to Owen Sound just so I can see it! No SCUBA diving in November, probably not too much in Dec. either--maybe next (...) (23 years ago, 19-Nov-02, to lugnet.robotics, lugnet.robotics.spybotics)
| |