http://tech.groups.yahoo.com/group/beam/ BEAM Robotics - is based on Nervous network technology Sun, 08 Nov 2009 03:44:41 GMT jonjb2a http://tech.groups.yahoo.com/group/beam/message/59742 http://tech.groups.yahoo.com/group/beam/message/59742 -I have been using CdS photocells (LDR or Light dependent resistors) as "eyes", though a couple of my photovores have IR LEDs. Thanks. Sat, 07 Nov 2009 10:35:26 GMT jodicalhon http://tech.groups.yahoo.com/group/beam/message/59741 http://tech.groups.yahoo.com/group/beam/message/59741 What circuit are you working from? From memory, you should have a 1kohm resistor and an LED in series across the power rails. +ve rail -> 1kohm -> ordinary LED Sat, 07 Nov 2009 04:31:19 GMT jonjb2a http://tech.groups.yahoo.com/group/beam/message/59740 http://tech.groups.yahoo.com/group/beam/message/59740 I am not too certain about the instructions for wiring in "Herbie the photovore's" eyes. Do I solder the negative leads to Pin 6 on the LM386 and positive Sat, 07 Nov 2009 04:23:32 GMT jonjb2a http://tech.groups.yahoo.com/group/beam/message/59739 http://tech.groups.yahoo.com/group/beam/message/59739 Thanks. Thu, 05 Nov 2009 05:55:30 GMT jabmechtech http://tech.groups.yahoo.com/group/beam/message/59738 http://tech.groups.yahoo.com/group/beam/message/59738 http://www.hobbyengineering.com/H1927.html here you go, this is what I finaly baught a few years ago, and love the thing.. I had to order new heads for it, but Wed, 04 Nov 2009 17:59:23 GMT Steve http://tech.groups.yahoo.com/group/beam/message/59737 http://tech.groups.yahoo.com/group/beam/message/59737 Hello all, are your robots looking for some time out to play? The Canadian National Robot Games are coming soon November 21, 22 at the Ontario Science Center. Tue, 03 Nov 2009 16:38:31 GMT jonjb2a http://tech.groups.yahoo.com/group/beam/message/59736 http://tech.groups.yahoo.com/group/beam/message/59736 GThanks. Probably time to upgrade soldering iron since it's showing signs of wear and tear, big time. Btw: a spot welder? That's something interesting to Tue, 03 Nov 2009 16:29:45 GMT jonjb2a http://tech.groups.yahoo.com/group/beam/message/59735 http://tech.groups.yahoo.com/group/beam/message/59735 Direct sunlight, IR, UV, microwaves, X-rays, gamma rays: all have their potential hazards. thanks for the warning. Tue, 03 Nov 2009 01:47:00 GMT Amit http://tech.groups.yahoo.com/group/beam/message/59734 http://tech.groups.yahoo.com/group/beam/message/59734 Hey All, I had posted some info on my new walkman type bot, specifically it's ability to run. How it works is by selecting another set of resistors, or Mon, 02 Nov 2009 22:50:47 GMT Amit http://tech.groups.yahoo.com/group/beam/message/59733 http://tech.groups.yahoo.com/group/beam/message/59733 Hey guys, Kieth, John, Here is a link with instructions, etc: http://hackaday.com/2009/06/23/how-to-build-your-own-spot-welder/ This is a great site for hacks Mon, 02 Nov 2009 07:13:55 GMT Keith Applegarth http://tech.groups.yahoo.com/group/beam/message/59732 http://tech.groups.yahoo.com/group/beam/message/59732 Me too... any specs on how to make it? Keith -- Keith Applegarth Maker of Things www.akapplegarth.us Mon, 02 Nov 2009 04:35:25 GMT john paul yu http://tech.groups.yahoo.com/group/beam/message/59731 http://tech.groups.yahoo.com/group/beam/message/59731 Amit,   Sorry for off topic. But I am also interested in your spot welder. I always want to have a permanent and strong connection in some of my bots chassis Mon, 02 Nov 2009 02:01:59 GMT Amit http://tech.groups.yahoo.com/group/beam/message/59730 http://tech.groups.yahoo.com/group/beam/message/59730 Bwahahaha! Yes, flux will do, flux and a higher wattage iron..But there is another overkill way! Bwahahaha! MAke a spot-welder! I've made one i use to weld Sun, 01 Nov 2009 19:47:16 GMT David http://tech.groups.yahoo.com/group/beam/message/59729 http://tech.groups.yahoo.com/group/beam/message/59729 The flux helps the heat transfer, but if you use a big enough iron to get the flux in the cored solder hot enough to do its job then you don't need extra flux. Sun, 01 Nov 2009 19:17:50 GMT David http://tech.groups.yahoo.com/group/beam/message/59728 http://tech.groups.yahoo.com/group/beam/message/59728 Sounds like you need a bigger soldering iron, the motor case isn't getting hot enough. A bigger iron will heat the spot to be soldered without getting the