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 | | Re: Universal Joint Modifications for Train Applications
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| (...) Hi Mark, I built the bogie using unmodified axles but as you can see the drive shaft is just hangin in the breeze currently. (2 URLs) ROSCO (20 years ago, 9-May-04, to lugnet.technic, FTX)
| | | | | Re: Universal Joint Modifications for Train Applications
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| (...) Square tubing? Is that using Lego pieces? Or is it Plastruct (styrene) that is similar to flex tubing but square? I noticed that at model railway shows. I tried to think of Lego pieces that would fit the bill, seeing as the real engine uses a (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: Universal Joint Modifications for Train Applications
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| (...) There are pictures of Shays at: (URL) #6 is the one I'm building a model of, as its wheels are bigger than on most others (4ft rather than 3ft), so the BBB wheels (3'9" in 8mm:1ft scale) fit better. So far I cut up 6 5L axles into 3.5L and (...) (20 years ago, 8-May-04, to lugnet.technic, FTX)
| | | | | Re: Universal Joint Modifications for Train Applications
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| (...) For what I can read, it seems to be a good use for the broken u-joints (yes, they are toooooooo long)... but, can we see the piece modified? It may help looking for an alternative solution. An also, where can I see a Shay engine? I've never (...) (20 years ago, 7-May-04, to lugnet.technic, FTX)
| | | | | Re: SSClagorpion
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| (...) I started putting together the trusses needed to articulate the hip and hook two hips together, and found that this leg design: (URL) to be compacted. I imagine the body truss made of long side rails, that the hips connected to. When I started (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: SSClagorpion
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| (...) I used my brain..... (...) leg_cost = 2 pistons, 4 switches n_legs = 8 legs_cost = 8(2 pistons, 4 switches) = 16 pistons, 32 switches timing_cost = 2 pistons, 2 switches reverse_cost = 8 switches turn_cost = 8 switches total_cost = legs_cost + (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: SSClagorpion
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| (...) ... (...) ... (...) How about if you make up a proposal? Actually, two. First, get out your pen, paper, calculator, sliderule, and excel spreadsheet, and figure out how many pistons & switches are required. I'd suggest two options: A) No (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: SSClagorpion
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| (...) Thanks, Eric. (...) I think this will make forward/backward walking do a side to side stagger, as Steve realized sideways walking was going to work. (...) If we measure the total distance front to back that the foot travels, this tells us the (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: SSClagorpion
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| (...) All along, I'd thought that it would zig/zag as it walks sideways, as you've noted. But I was wrong. A, D, E and H are in one leg group. This means that A, and E are walking forward/left, and D and H are walking backard/left. This means that (...) (20 years ago, 8-May-04, to lugnet.technic)
| | | | | Re: SSClagorpion
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| (...) slight problem. When SSClagorpion is walking sideways, due to the LEG SWEEP the legs will be positioned as show above. However, when he takes a step left, legs A, B, E & F would be stepping forward(up)/left and C,D,G & H are stepping (...) (20 years ago, 8-May-04, to lugnet.technic)
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