 | | a couple of new-bot questions from a generally quiet lurker —Al & Becky Szymanski
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| | | 1. What is the value of an Add Subtract differential? I have seen the pic's that folks have made and followes some of the discussion, but I don't really grok the value of one of the systems. 2. Is the processor in the RCX 'really' a multitasking (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | Re: a couple of new-bot questions from a generally quiet lurker —dave madden
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| | | | | =>From: aszy@worldnet.att.net (Al & Becky Szymanski) =>... =>1. What is the value of an Add Subtract differential? I have seen the pic's =>that folks have made and followes some of the discussion, but I don't =>really grok the value of one of the (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | | | Re: a couple of new-bot questions from a generally quiet lurker —dave madden
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| | | | | | =>From: "Stephen P. Gibbons" <steve@aztech.net> =>... =>My biggest gripe with this design [differtrans] is that there is no =>way to get all motors contributing to a single effort in one =>direction. Perhaps you could use two regular motors joined (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | | | | Re: a couple of new-bot questions from a generally quiet lurker —S. Crawshaw
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| | | | | | | (...) If you have even more differentials, you could set up the "turning" motor so that its power is split - one direction turns (this limits you to turning one way, but there are always sacrifices), and the other side adds to the forward drive (put (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | | | | Re: a couple of new-bot questions from a generally quiet lurker —Jacob Schultz
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| | | | | | | (...) I came up with this idea (I don't know if I were the first to do it, though). It worked really great with almost no loss, but there was one problem. The differential and the gearing introduces some backlash, especially if you use those eight (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | | | | Re: a couple of new-bot questions from a generally quiet lurker —Ian Warfield
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| | | | | | (...) I assume that was me; I posted a message with a link to an LDraw file of a robot I came up with that uses that design. I can't take all the credit for it, however: I was inspired by Simen Svale Skogsrud's web page on his Vector Rover using (...) (25 years ago, 21-Sep-99, to lugnet.robotics)
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| | | | | | | | Re: a couple of new-bot questions from a generally quiet lurker —S. Crawshaw
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| | | | | | (...) You can achieve all 5 of these criteria with the standard differtrans, if you put a rotation sensor directly on each motor shaft... [ I've build such a 'bot, and it appears to work pretty well (ie it measures distance accurately, and drives in (...) (25 years ago, 21-Sep-99, to lugnet.robotics)
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| | | | | Re: a couple of new-bot questions from a generally quiet lurker —Jonathan Knudsen
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| | | | Since the first two questions have been well answered, I'll take on #3 and #4. (...) You can't generate an srec from RCX Code or Robolab. However, RCX Code does support an "Export" function that allows you to write out programs to arbitrary files. (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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| | | | | | Re: a couple of new-bot questions from a generally quiet lurker —Matthew Miller
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| | | | (...) IIRC, the files it produces are not actually representations of the code directly, but representations of where the icons are on the RCX Code screen. This works fine, of course, and makes sense from the viewpoint of someone always using RCX (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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