 | | Re: PF train motor
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(...) So am I. However, I'm also into R/C aircraft so I have a long history with batteries and motors and could talk your ear off about them. I could also explain why the battery pack costs so much! (...) Yes, I give you permission to go home. You (...) (15 years ago, 3-Apr-09, to lugnet.trains, lugnet.technic, lugnet.robotics, FTX)
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| | Re: Help needed on gear spacing, and another question
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(...) Technic worm gears are not really made to mesh with the 1x4 racks. The problem is that the racks do not have any pitch (the gear teeth are perpendicular to the longitudinal axis of the rack). The worm gear, by definition, does have a pitch. In (...) (15 years ago, 3-Apr-09, to lugnet.technic, FTX)
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| | Help needed on gear spacing, and another question
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Hi all, I have two requests; any help would be appreciated. First question: what is the proper spacing to use when using a worm gear to drive a rack gear? I have (supposing studs up) a horizontal axle with a standard worm gear (4716) on the axle. I (...) (15 years ago, 3-Apr-09, to lugnet.technic)
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| | Re: PF train motor
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(...) Eric: Thanks for the awesome explanation! I learned new stuff today...does that mean I can go home now? :-) I'm excited to see how the new motor and battery box pull. I think the new PF trains could add a lot of functionality to existing 9V (...) (15 years ago, 3-Apr-09, to lugnet.trains, lugnet.technic, lugnet.robotics)
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| | Re: PF train motor
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(...) They made it 7.4V because all lithium polymer battery cells are 3.6 - 3.8V. Since this is a pack with 2 cells in series, you get 7.4V. A 3 cell pack is typically 11.2V. As you can see, keeping the old 9V system was not really an option if (...) (15 years ago, 3-Apr-09, to lugnet.trains, lugnet.technic, lugnet.robotics)
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| | Re: Using the new PF remote for Technic
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(...) BTW, forgot to mention that the protocol indeed defines 7 PWM steps in each direction (forward/backward) plus the Float and Break states. (15 years ago, 30-Mar-09, to lugnet.technic, lugnet.robotics, FTX)
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| | Re: Using the new PF remote for Technic
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(...) Hi Eric, Thanks for sharing with your findings about the new PF remote with us! I haven't played with it yet, so was very curious to know about some implementation details and you gave full light on those. From your description the remote (...) (15 years ago, 30-Mar-09, to lugnet.technic, lugnet.robotics, FTX)
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| | Re: Using the new PF remote for Technic
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(...) .... (...) ... (...) ... (...) .... (...) Thanks for the feedback! Im not surprised the power level is not continuous, its a digital signal not analogue! iirc its 2 bytes of data, thats the mode and data for both channels in combo mode. (There (...) (15 years ago, 30-Mar-09, to lugnet.technic, lugnet.robotics, FTX)
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| | Using the new PF remote for Technic
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Hi everyone, I just got back from Brickfest in Portland and was lucky enough to see the unveiling of the new 10194 Emerald Night train and the new Power Functions elements which can be used with it. (URL) I'm not a train guy, but I had been (...) (15 years ago, 30-Mar-09, to lugnet.technic, lugnet.robotics, FTX)
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| | Re: Power Function control with RCX and BrickOS
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(...) sorry, i'm in the middle of moving all my web sites and links to a new server. you can now find the PF software and all the software that i have writen at this link: (URL) (15 years ago, 30-Mar-09, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics, FTX)
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| | Re: Power Function control with RCX and BrickOS
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Hello Jetro, check this URL: (URL) found it after some googling... Greetings Maico Arts Jetro de Chateau schreef: (...) (15 years ago, 29-Mar-09, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Function control with RCX and BrickOS
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(...) Unfortunately the link no longer works and I can't find it anywhere on your new website either. Is it still available anywhere? Thanks in advance Jetro (15 years ago, 29-Mar-09, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics, FTX)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) Bill Are you missing a part from the ldraw library? 32449.dat is a 1x4 liftarm (without boss) and is in the model as pictured here: (URL) Part) Regards Mike (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) I agree: the input side is connected to the orbiter; the output shaft connects only to the cog. That is exactly the way mine is built. Where I disagree with the LDRAW file is the nature of the liftarm: what is shown is a 1x5 liftarm with only (...) (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) Only the input side of the orbiter is connected to a shaft (via 1x4 liftarm) the output shaft turns freely (via 1x5 liftarm) inside the orbiter and connects to the Cog Only. It should be as shown here: (URL) dont have Ldraw installed on this (...) (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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Owen and Mike, The 2825 part connects the input shift with the orbiter. The part that was shown in the original LDRAW model clearly does not work because all its holes are round and so there is no way of transferring torque to the orbiter body. The (...) (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) Apologies for not having part numbers to hand.. You did mean the 1x5 not the 1x4 liftarm? if so Owen is right the cog must turn freely hence the excessive 1x5 liftarm. I would be interested to see if you have a working redesign... If you meant (...) (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) Bill. Perhaps you could elaborate on that a little? I can't see that part working there at all - the 2825 part has crosses at both ends, and you need the axle attached to the gear to be able to rotate freely. Owen. (16 years ago, 23-Mar-09, to lugnet.technic)
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| | Re: Chain Precession Drive - Courtesy of TechnicBRICKs
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(...) It is indeed a noteworthy invention. Please note, however, that the DAT file linked to from the web page has an error: you need to substitute part 2825.dat (Technic liftarm 1x4 with boss) for the part 32017.dat (Technic liftarm 1x5) that is (...) (16 years ago, 22-Mar-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) No, it is not really a gear. You might be able to get two of them to mesh, but I wouldn't recommend it. It is used on the Code Pilot (and elsewhere) to measure rotation speed along with a light. (...) The 24 tooth clutch is a torque limiter. (...) (16 years ago, 9-Mar-09, to lugnet.technic, FTX)
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