 | | robotica on TLC
|
|
After seeing all the commercials for the past couple of weeks, I was looking forward to this show on TLC called "Robotica". What a disappointment. Where were the robots? They kept talking about robots the whole time. Maybe I'm missing something (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | legs anyone?
|
|
Hello all- has anyone worked on a biped-type robot? I've got my class working on making a leg & hip system right now. They are making knees and ankles and gearing the hip to throw weight forward so that the robot walks. Any photos of existing (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
As this discussion grows, I submit: (that) Part of the problem with Mechanical flex, Gear "Backlash" if you will, Derives from many aspects when we model maximun preformance from Axles, Gears, and all the elements combined to produce desired (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
cool idea..... (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: How about ideas for new elements?
|
|
(...) I think a sub group for 'modifiers' is a good idea. I haven't cut up any pieces myself, broken loads, but never sawn any up. What I will admit to is strenghtening parts, particulary universal joints. I bind the ends with sellotape as the (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: How about ideas for new elements?
|
|
(...) Nah, keep the posts in the main group as a constant source of temptation for the purists :-) I take your point about these mods really coming into play when you have a large collection of parts - when I was young and had a very limited amount (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
(...) You can use those half beveled gears(with the recess) back to back as one gear, and one (maybe 2) crown gears as the gear on the other shaft. It depends on what the setup requires as of gear setup to work. Andy (...) (24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
(...) Explain 'Hmmm...' :-) I of course omitted the fact that my solution as described produces no mechanical advantage just a shaft going in the opposite direction. Of course, you can always replace the pair of gears on the second shaft with a pair (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
Hmmm... (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
(...) I was going to say this solution is easy, but then I tried it. There are only two shaft's in this example. As lego don't make don't make a 'double width gear' You'd have to use four to make it in lego. All you'd need is three normal 16 tooth (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
Interesting , but we need one for Lego! I do see what you are saying, and It is an interesting solution,, although a little hard to visualize...Thanks! (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: NQC for Palm
|
|
(...) Yes - NQC is developed on a Mac so PowerPC big-endian is actually where most of the testing is done, but I don't recall ever running into an endian problem. One of the builds (for Mac MPW) targets 68K, but with slightly difference options than (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: Lubricating technic turntables
|
|
(...) Before someone ruins their pneumatics..... Brake Fluid will ruin many plastics, will remove paint, and can even damage certain types of rubber seals. The rubber parts in an automotive brake system are made from special rubber that is made to (...) (24 years ago, 5-Apr-01, to lugnet.robotics)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
(...) I know of 1 type of zero-lash/anti backlash geartrain. It's hard to put it in words but I'll try. My example assumes there are only 2 shafts but it can be applied to as many shafts as you need. In my example S1 represents our first shaft. (...) (24 years ago, 5-Apr-01, to lugnet.robotics, lugnet.technic)
|
| |
| | Question about the UBS
|
|
Is there is any information on what will be contained in the 'Ultimate Builder's Set'? (24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: NQC for Palm
|
|
<snip> it's too bad that all of you just HAVE to use a palm OS device. someone a long time ago ported nqc to windowsce and it works fine, i'm able to do on the fly programming and uploading with a first generation device, which i'm actually unhappy (...) (24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: Lubricating technic turntables
|
|
<snip> from using different types of yoyos and other things i have found that the best for inert lubricating is silicon lubricant, there are also some other lubes for nylon that i can't think of but i do know that they are out there. some vcr repair (...) (24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: I wish Lego made an "Anti-Backlash Gear"
|
|
(24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: How about ideas for new elements?
|
|
I would like to try using threaded nylon rods. Where can you buy them? I've only used steel threaded rods to restrain large axial forces (e.g. in a crane turntable). I've also used smooth 3/16" bar stock when I needed a very stiff and strong axle (I (...) (24 years ago, 4-Apr-01, to lugnet.robotics)
|
| |
| | Re: Scout Commands
|
|
(...) If you use NQC then you can write a small program and load it into the Scout...then it behaves much like the RCX. The Scout has VERY little free memory - but it's enough to allow it to act as a dumb peripheral, turning motors on and off and (...) (24 years ago, 4-Apr-01, to lugnet.robotics)
|
