 | | Straight moving with only one rotation sensor —Nicolas Alvarez
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| | | Hi I saw in the LEGO Mindstorms Web Page that many people made their robots with 2 motors go straight using one rotation sensor on each wheel and stopping the correct motor until both sensors were equal. I got Ultimate Accessory Set as a present (...) (20 years ago, 10-Jun-04, to lugnet.robotics.rcx.nqc)
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| | | | | Re: Straight moving with only one rotation sensor —Sandy Johnson
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| | | | | (...) Sounds good. I use a CyberMaster for the movement part of the robot because it has tachos on each internal motor. I modify the power settings for the motors to keep the robot (reasonably) straight, rather than stop and start them. If you tried (...) (20 years ago, 10-Jun-04, to lugnet.robotics.rcx.nqc)
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| | | | | | | Re: Straight moving with only one rotation sensor —Danny Staple
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| | | | | | Have you come across the adder/subtractor drive? Although it make the gear chain slightly more complex - it may mean you can leave out the sensor entirely. The drive has two inputs (A and B), and two outputs - one being A+B, and the other A-B. So if (...) (20 years ago, 10-Jun-04, to lugnet.robotics.rcx.nqc)
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| | | | | | | | Re: Straight moving with only one rotation sensor —Nicolas Alvarez
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| | | | | | I tried to include the LDraw file but I had problems posting. (URL) (20 years ago, 12-Jun-04, to lugnet.robotics.rcx.nqc)
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| | | | | Re: Straight moving with only one rotation sensor —Joseph Woolley
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| | | | | I did this in the past (since disassembled the bot) and found it to be quite reliable; except on slippery surfaces and carpet. :) The trick that I employed was to gear-up the rotation sensor. This causes the rotation sensor to detect even a slight (...) (20 years ago, 11-Jun-04, to lugnet.robotics.rcx.nqc)
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| | | | | Re: Straight moving with only one rotation sensor —Nicolas Alvarez
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| | | | I tried to include the LDraw file but I had problems posting. (URL) (20 years ago, 12-Jun-04, to lugnet.robotics.rcx.nqc)
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