 | | Undercarriage
|
|
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)
|
| |
| | PF Speed controller test
|
|
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)
|
| |
| | Re: A couple of gear questions
|
|
(...) Right, that's what I meant- sorry for the confusion. (16 years ago, 18-Apr-09, to lugnet.technic)
|
| |
| | Re: A couple of gear questions
|
|
(...) 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)
|
| |
| | Re: A couple of gear questions
|
|
"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)
|
| |
| | Re: A couple of gear questions
|
|
(...) 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)
|
| |
| | Re: A couple of gear questions
|
|
(...) 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)
|
| |
| | Re: A couple of gear questions
|
|
(...) 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)
|
| |
| | Re: A couple of gear questions
|
|
(...) 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)
|
| |
| | Re: A couple of gear questions
|
|
(...) (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)
|
| |
| | Shock absorbers stiffness
|
|
An approximate measurement of stiffness of different shock absorbers at full compression. (3 URLs) Philo> (16 years ago, 13-Apr-09, to lugnet.technic, FTX)
|
| |
| | Uncommon use of Bionicle masks
|
|
LLL, Inof presented this house over on 1000steine, note the unusual awnings at the first floor: (URL) (16 years ago, 9-Apr-09, to lugnet.build.arch, lugnet.technic.bionicle, lugnet.town)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) No! They're properly aligned. ;) They just look like that, because the way the worm termination is done. However the screw works continuous and smoothly. (16 years ago, 8-Apr-09, to lugnet.technic, FTX)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) Is it just me, or do those worm gears look like the haven't been aligned properly? (16 years ago, 8-Apr-09, to lugnet.technic, FTX)
|
| |
| | "Deathstrider" Droid Host Unit and a centipede
|
|
I've been thinking for awhile that a mantis-like creation would fit in well with my Vedraan Empire sub-theme of Silicon Psyche. Check out the "Deathstrider" droid host unit- (URL) the past few years, I've accumulated a lot of metallic Bionicle (...) (16 years ago, 8-Apr-09, to lugnet.announce.moc, lugnet.build.mecha, lugnet.general, lugnet.technic.bionicle)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
While the worm and 1x4 rack pitch are not the same and they do not mesh perfectly, it is still possible to make them work together in a reliable way. You may see one example below, (URL) Originally posted at TechnicBRICKs (URL) (16 years ago, 7-Apr-09, to lugnet.technic, FTX)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) For instance, have a "floating" worm-gear-based gearbox sliding along that axle, with the 8t gears engaging an external stationary rack? If the worm gear doesn't have very far to travel, you could also substitute a rack gear or two for a (...) (16 years ago, 3-Apr-09, to lugnet.technic)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) Although not by far as nice and compact as Mike's suggestion I stumbled upon the following solution after a bit of tinkering: (URL) (16 years ago, 3-Apr-09, to lugnet.technic)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) Rafe, Must the worm gear mesh directly with the gear rack? Or, could you put a 24tooth gear in between? (worm->24->rack) Steve (16 years ago, 3-Apr-09, to lugnet.technic)
|
| |
| | Re: Help needed on gear spacing, and another question
|
|
(...) Try this inversion trick: (URL) (16 years ago, 3-Apr-09, to lugnet.technic)
|
