 | | Re: Hammer Help
|
|
winding and unwinding string seems to be to slow if i understand it good so my idea is here: use two wheels (pulleys) especiali as big as you can put into your design they should be with flat surface so it meand they should be from old sets like: (...) (23 years ago, 13-Dec-02, to lugnet.technic, lugnet.robotics)
|
| |
| | Hammer Help
|
|
Roy I thought about designing such a thing a while ago. My decision was that I'd make something like a Roman ballista. I'd wind up a string on a winch to cock the hammer then unwind the string all the way back again. The catch would be released by (...) (23 years ago, 13-Dec-02, to lugnet.robotics)
|
| |
| | setjmp/longjmp for brickOS
|
|
Hi all, I am currently attending to a lecture in real time system on my university and we were assigned the homework to do exception handling in C on the RCX using setjmp and longjmp. Of course those are not available in brickOS so that task (...) (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: BrickOS Threading...
|
|
(...) <snip> (...) Steve, Yes, infact I had tested a couple different applications with the motor controller being called every 1 ms and the same ones with a 2 ms interval. I didn't see a difference with those applications, but did recognize the (...) (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: BrickOS Threading...
|
|
(...) ... (...) This change seem to improve things. Can I change it back to the way it was before? Thanks Steve (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: sys_time (long post)
|
|
Mark, Excellent Post ! Ok, I will admit it; I was the one that put the sys_time handler on the NMI. 8-) I guess I will want to think about this a bit; but I see that you have done a good bit of that yourself. ... Could the 'Get' function do the (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Hammer Help
|
|
I need help in designing a motor-driven hammer for my RCX Tank Base Two. The hammer should be forced down to create a greater impact than that as if it were simply dropped. The hammer should have a length of about 28 studs from its point of rotation (...) (23 years ago, 13-Dec-02, to lugnet.technic, lugnet.robotics)
|
| |
| | Working motorized focus for Vision Command
|
|
I have always thought that LEGO should have built the Vision Command camera housing such that the focus could be motorized. I know I'm not the only one ... In this thread, Bob Fay (of LEGO milling machine fame) suggests using half of a large Technic (...) (23 years ago, 13-Dec-02, to lugnet.robotics)
|
| |
| | Re: Win98 cygwin USB installation
|
|
Hi Collin, This post by John Hansen fixed things for me: (URL) Spencer" <cspencer@andrew.cmu.edu> wrote in message news:H71CzB.Ipu@lugnet.com... (...) USB (...) them or (...) to (...) the (...) the (...) USB (...) that (...) the (...) (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Win98 cygwin USB installation
|
|
Ok, I think I figured it out...I don't completely understand the logistics of makefiles, but I changed the following line in Makefile.common: Before: CFLAGS = -O2 -Wall After: CFLAGS += -O2 -Wall I suspect that a later assignment to CFLAGS was (...) (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Win98 cygwin USB installation
|
|
Hello, I recently bought the LEGO mindstorms Invention System kit and I am trying to get brickOS v0.2.6 working on my PC (Win98). I also have the USB tower. So far, I have found 4 bugs in the current script. I was able to fix 3 them or work around (...) (23 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: RIS 1.5 85 at UK S@H
|
|
In message <H64qy2.A44@lugnet.com>, Tim Auton <tim.lugnet@uton.org> writes (...) I can confirm Non UK European RIS 1.5 is still available for 85 quid. I ordered one today. (23 years ago, 13-Dec-02, to lugnet.robotics)
|
| |
| | Re: BrickOS Threading...
|
|
The motor handler is only called once ever 2ms in the latest version of BrickOS (as opposed to every 1ms in earlier versions). This is a fairly recent change and it could be causing a "granularity" type problem with certain speed settings in your (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | BrickOS Threading...
|
|
I'm having a problem, and I hope someone can help me. I've been running winLegOS, and I've switched to the latest version of BrickOS. I created a way to control the motors, which will reliably speed them up, and slow them down by using different (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | sys_time (long post)
|
|
As I was poking around in the BrickOS kernel, it occurred to me that using the sys_time variable isn't entirely safe. Since sys_time is 32-bits and the processor can only read 16-bits at a time into a register, there is a period of time between the (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Cygwin under Virtual PC on OS X
|
|
(...) David, I was not sure how you tried to build the cross compiler but I know that Apple provides several gnu tools that work under Darwin. Darwin from my understanding is the underlying code for the Mac OS X (See FAQ at (URL) So one might be (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Hammer Help
|
|
What problems are you having? (...) (23 years ago, 12-Dec-02, to lugnet.technic, lugnet.robotics)
|
| |
| | Re: Cygwin under Virtual PC on OS X
|
|
Oops, Sorry if I accidentally gave anyone false hope, I ment to say: I have not found any cross compiler packages for LegOS or the Hitachi H8 that are buildable under OS X (but would love to find one). Anyone know of any? (...) (23 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Spybotics Comms
|
|
(...) I haven't tried it, so no definite answer, but see (URL) Jürgen Stuber <stuber@loria.fr> (URL) åa ä e ö å i öa ä e å. (23 years ago, 12-Dec-02, to lugnet.robotics.spybotics)
|
| |
| | Hammer Help
|
|
Hello All, I'm looking for some mechanical design help. I am attempting to build a hammer device for my RCX Tank Base Two, kind of a 'Robot Warriors' thing. I'm looking for ideas on how to do this, so far I have failed at my own attemps. The way I (...) (23 years ago, 12-Dec-02, to lugnet.technic, lugnet.robotics)
|
