 | | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
|
|
Do we loose points for melting the eggs? At any rate, it makes the foil stay on better. ;-) --Peter (19 years ago, 22-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
|
| |
| | Re: pbLua Fun at OSX
|
|
(...) Finally, I did something right - by accident! Christian, could I ask you to please send me (off list if you like) some screen shots of what happens when you connect the NXT? I can't remember if I sent you Mac instructions, but you just look (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt)
|
| |
| | pbLua Fun at OSX
|
|
Hello World, pbLua-Beta2 is out and 90% of my wishes are true now :D Running pbLua with OSX worked out of the box... 1. Flashing NXT and reboot the box once 2. checking for new NXT-Device (ls -la /dev/tty.usb*) 3. connecting with screen to NXT (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt)
|
| |
| | Re: The standard NXT firmware & the case of the missing opcodes
|
|
(...) I guess what I'm saying is '<<=', 'OP_ASL' and 'OP_LSL' are all the same thing (zero fill). '>>=' means either 'OP_ASR' (smear fill) or 'OP_LSR' (zero fill) depending on whether your target is signed or not. If you wanted direct equivalents (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt.nxthacking)
|
| |
| | Re: The standard NXT firmware & the case of the missing opcodes
|
|
(...) Having used shifts in Z80 assembly before, I can see the uses of the different types. However, I can't see how I'd want anything other than arithmetical in the NBC opcodes. The only times I used logical, rotating, or with-carry-bit shifts was (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt.nxthacking)
|
| |
| | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
|
|
(...) Will, If you do manage to combine RCX & NXT, I expect it will look mashed-up, but unlike all the other stuff at BF, this is not a how-does-it-look competition. No matter how it looks, I'm sure people will cheer for robots that try to give them (...) (19 years ago, 21-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
|
| |
| | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
|
|
(...) I'll give it a whirl! I wouldn't want you to get the NXT prize just because you were the only one entered. :) My 'bot may be a mashup of RCX & NXT. It will likely be horrible ugly, and exhibit questional operational effectiveness, but fame and (...) (19 years ago, 21-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
|
| |
| | Re: Adding syscalls/opcodes to NXT-G
|
|
(...) Can you flesh this out a bit? What do you have in mind when you say "create from it a new program clump"? The current version of the firmware limits the size of this buffer to 64 bytes. I increased that limit in my recent changes to be 800 (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt)
|
| |
| | Adding syscalls/opcodes to NXT-G
|
|
One of the biggest problems with extending the current FW is that the NI compiler for NXT-G/NXTToolkit is not so flexible. In particular, one can't add new syscalls. Here's a suggestion I would be happy to hear your ideas on - the NXT-G compiler has (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt)
|
| |
| | Re: Boosting power in a gear train / torque amplifier
|
|
I think one way to do this uses a differential (URL) and a pole reverser (URL). I don't have a picture to hand but the idea is simple. One side of the differential is connected to the low torque "input axle". The differential housing is connected to (...) (19 years ago, 21-Mar-07, to lugnet.technic, lugnet.robotics)
|
| |
| | The standard NXT firmware & the case of the missing opcodes
|
|
There are several opcodes defined in c_cmd_bytecodes.h which are missing from the VM implementation in c_cmd.c Here are the ones that are not implemented: //Family: Bit manipulation #define OP_CMNT 0x0A // dest, src #define OP_LSL 0x0B // dest, src (...) (19 years ago, 21-Mar-07, to lugnet.robotics.nxt.nxthacking)
|
| |
| | Re: Boosting power in a gear train
|
|
(...) A torque amplifier is EXACTLY what I need; thank you! Now I just need to figureout how to build one. Google has a few pix, two lego ones actually. I hope this will get me where I need to go! Thanks for the help, Rafe (19 years ago, 21-Mar-07, to lugnet.technic, lugnet.robotics)
|
| |
| | Re: Boosting power in a gear train
|
|
(...) The original Mindstorms rotation sensor turns very easily - I think that three stud-balls of torque would be plenty to turn it. The more recent NXT stuff is another matter - I don't have a NXT system so I have no clue as to the problems of (...) (19 years ago, 21-Mar-07, to lugnet.robotics)
|
| |
| | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
|
|
(...) The walls are going to be about two inches tall. The houses will be considerably taller than that. Probably on the order of three to five times taller. By the way, there's only a bit over a week before BrickFest. If anyone else is considering (...) (19 years ago, 20-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
|
| |
| | Re: Boosting power in a gear train
|
|
More information about your application would be helpful. The first thought that jumps to mind is "Use a more powerful motor. Duh!". So there must be something that I am missing. There must be some reason you need to use the puny motor. Maybe you (...) (19 years ago, 20-Mar-07, to lugnet.technic, lugnet.robotics)
|
| |
| | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
|
|
David, how high is the shortest house? Is it taller than the side panels? ---Will (19 years ago, 20-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
|
| |
| | Re: Boosting power in a gear train
|
|
(...) How much torque do I need to drive the rotation sensor? This was my first plan of action, but I was limited because I don't have a rotation sensor other than the NXT motors themselves! From a purist point of view, I would really like a (...) (19 years ago, 20-Mar-07, to lugnet.robotics)
|
| |
| | Re: Boosting power in a gear train
|
|
(...) ... (...) So use a rotation sensor to sense the position of the weak input - and use a NXT motor to track that position and drive all of the gears. You can change the ratio of the input angle to the NXT motor's angle in software and thereby (...) (19 years ago, 20-Mar-07, to lugnet.robotics)
|
| |
| | Boosting power in a gear train
|
|
I have a gear train that is driven by a very weak input, very small torque. There are some places in the gear train where I have some worm gears driving some 'regualr' gears. As I go along the gear train, I boost the output as much as I can with (...) (19 years ago, 20-Mar-07, to lugnet.technic, lugnet.robotics)
|
| |
| | new NXT mailinglist established
|
|
Hello! A new NXT mailinglist is established. Because there are no german mailinglists until now, this mailinglist is for german speaking (not necessary native) people around the world. You need an (free) yahoo account to participate! (URL) (19 years ago, 19-Mar-07, to lugnet.robotics.nxt)
|
