 | | Undercarriage
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For the past 6 months on and off I've been trying to create a Technic construction vehicle... with all tries miserably failing, until recently I managed to pull up a nice undercarriage system which, in my opinion, is kind of huge. I originally (...) (16 years ago, 24-Apr-09, to lugnet.technic, FTX)
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| | PF Speed controller test
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Hi all, Had my camera back so figured I'd upload a video of the new PF controller controlling some old 9V stuff. It's hooked to an original PF battery box, don't have he new one and haven't tested the old 9V b-box. (URL) (16 years ago, 21-Apr-09, to lugnet.trains, lugnet.technic)
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| | Re: A couple of gear questions
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(...) Right, that's what I meant- sorry for the confusion. (16 years ago, 18-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) He probably means two clutch gears in a single axle, meshing with two other gears which also share an axle. That way (in parallel) they should slip at twice the nominal torque. (16 years ago, 18-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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"Tim (Smith)" <tsmith7057@comcast.net> wrote in message news:KI7yAw.23B@lugnet.com... (...) You won't get twice the allowable torque. What you'll get is a proportionate increase in torque as the load on the output from the clutch gears approaches (...) (16 years ago, 17-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) That's not a bug- it's a feature. The point is to protect the motor from damage. That said, I bet if you used two clutch gears you'll get twice the allowable torque. I don't recommend it- but you could try it and see what you think. (16 years ago, 17-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) With the PF and NXT motors, i perhaps agree with you. Of course, you can get any torque limit you want by gearing up and then back down, it's just more awkward. (16 years ago, 16-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) For most applications it dosen't really pose a noticeable problem. However this inconsistancey is due to the internal structure and the way in which friction is achived. (URL) the only problem I have with it is that the clutch slips way too (...) (16 years ago, 16-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) I think it's a non-issue for the most part. The torque isn't really "over a range" - it's different for different clutch gears, but for any *single* clutch gear it's pretty constant. After all, if it has a point at which it starts slipping, it (...) (16 years ago, 16-Apr-09, to lugnet.technic)
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| | Re: A couple of gear questions
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(...) (URL) you can see the writing, and why the torque over a range. Is a non constant-clutching like this good or bad? What do people think? (16 years ago, 16-Apr-09, to lugnet.technic)
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