 | | Re: Universal Joint Modifications for Train Applications
|
|
(...) Mark, I have also been looking at a Shay, but encountered the same problems and put it on hold for a while to let it percolate. I even tried a sliding joint with square tubing, with some success. But I never got around the length of the (...) (20 years ago, 6-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
In lugnet.technic, Steve Hassenplug wrote: Here is my first attempt at a locking leg, locked in the down position. (URL) is the leg lifted off the ground: (URL) is the leg down, with the sidewalking piston contracted. (URL) lock mechanism allows for (...) (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) I thought about this. The two pieces that "lock" don't need to go beyond their point of greatest extension. The reason for going beyond the PoGE is to lock, so nothing else is required to hold it in place. However the pneumatic piston will be (...) (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: Coupe/ Cabrio car
|
|
(...) Thanks Keith! For both your explanation and your kind words. Indeed I said I used only 8458 and 8466 to build it, so no extra stuff. Actually I don't have any other panels; of the new technic sets I only have 8458 and 8466. So unfortunately no (...) (20 years ago, 5-May-04, to lugnet.build, lugnet.loc.nl, lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) huh huh he said "It might not work..." I love this project. e (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) huh huh they said "hip sweeps", I love this project. e (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) It might not work quite as well as you seem to think. Locking mechanisms of the sort that you're considering have a little "pop" because they don't lock at their point of greatest extension. In order to get the leg to lock into position, it (...) (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Like this: __ / \ So when we stop walking sideways, we have to force all the sidewalking pistons to expand. You said this didn't you. Kevin (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Right. I think. So, where (side to side) will the legs be when it's walking forward? (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Here's a quick example of what I'm talking about. (URL) like it will work. (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Looking at SSClagorpion from the front........ and only looking at one of the two leg groups: __ / / Down __ \ \ Down __ \ \ Up __ / / Up In this case we'll need to have half the sidways pistons expanded and half contracted all the time. (...) (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) This eliminates the concerns about piston leverage for putting the feet down and keeping them weight bearing. This allows us to have the legs be longer, more like a real scorpion, but this brings us to the next leverage problem: (...) (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) ... (...) ... (...) Will it be possible to expand or contract all sideways walking pistons at the same time? Or is that like walking forward, where 1/2 will be expanded, while the other 1/2 are contracted? (20 years ago, 5-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Below is a diagram of the 8 legs as one of the two points where all eight feet are down. A\_ \B _/D C/ E\_ \F _/H G/ Assuming that all the hips sweeps are the same, for example compressed means swept backwards, and expanded means swept (...) (20 years ago, 4-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
Hey wow, I see it now. When I sit down to build, I'll work with this in mind. Good one. e (20 years ago, 4-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) I like this idea a lot. It sounds very good to me. (...) I agree. Very cool. (...) Assymetry in the leg length might make some legs hold more weight than others, making it harder to lock. (...) Kevin (20 years ago, 4-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) Now, I have a question about the "logic" behind walking sideways. When SSClagorpion is done walking sideways, and it starts walking forward, will the legs all be in the same position in/out, or will 1/2 be in, while 1/2 are out? Assuming the (...) (20 years ago, 4-May-04, to lugnet.technic)
|
| |
| | Re: SSClagorpion
|
|
(...) I just came up with an idea for how to make the legs work. It should make it so the pneumatic cylinder doesn't have to support the weight of the creature. The idea is to have the legs "lock" into place, when they are down. Think about the legs (...) (20 years ago, 4-May-04, to lugnet.technic)
|
| |
| | Universal Joint Modifications for Train Applications
|
|
Has anyone modified a universal joint? Was your modified part successful? I find that the uni joints are too long for certain train applications. I propose to take a broken uni joint (the axle holding parts break at the ends), and do the following (...) (20 years ago, 4-May-04, to lugnet.technic, lugnet.trains)
|
| |
| | Re: Lego RC Set Questions
|
|
(...) If I remember correctly (haven't had my RC out for a few months), 1 & 2 go together. That is, the two small pedals control any output that is connected to the gray power connector. As for attaching mini-motors, I have done that without having (...) (20 years ago, 4-May-04, to lugnet.technic)
|
