 | | Aviation Tractor MOC
|
|
I have just finally finished putting together a page for my latest MOC, one of those weird flat trucks used to tow planes. Originally I built it to enter the .technic towing challenge but it turned out a bit weak in the towing department so I (...) (22 years ago, 17-Jun-02, to lugnet.announce.moc, lugnet.technic, lugnet.modelteam, lugnet.loc.uk) !
|
| |
| | Re: Aviation Tractor MOC
|
|
Nice job Simon! I always like watching these machines at the airport too, did the spec sheets you received state what sort of horsepower and max speed these things have? As for the power problem, two 9V gear motors should be able to drive a machine (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
Hi all, (...) This reminds me of a series of vehicles that my friend Robin and I made, oh, 15 or so years ago now. We were building remote-controlled cars, using a bunch of batteries taped together for power, and a car speedometer cable to steer (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
Yes, nice job. Well done! (...) If you're going for a real power puller, then a ratio of 24:1 sounds good. But beware! You'll be getting into gear-breaking torques. Be sure to use the new style 24t gears, if you should need 24t gears. I agree with (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
There are two issues here. 1. Can the motors sustain more than 9 volts without damage? If I was TLC designing motors for use by kids, I'd make sure there was a large safety margin. New batteries are typically 0.1 - 0.2 volts above their nominal 1.5 (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) How about crazy adults with a thirst for more power? I used to run my old 4.5v motors with a 12v power source. They still work fine today ;-) -TJ (frequent sufferer of Tim "the Toolman" Taylor syndrome <insert manly grunting noise>) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) actually (...) I tried it "raw" without any controllers onto the excavator handset compressor/controller and it was *seriously* better than the 8.4V PP3 I had been using before. Of course with the PP3 there will be current issues, but even so (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
"Rebecca Taylor" <arellcat@NOSPAMyahoo.com> wrote in message news:Gxuq6x.Ft@lugnet.com... (...) oh, (...) running (...) Likewise, back in 1982 or so I couldn't afford batteries all the time so I used to drive the 4.5V motor from a 9V AC/DC (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
"Simon Bennett" <simon.bennett@ntlworld.com> schreef in bericht news:GxuDD5.KxH@lugnet.com... (...) one (...) MOC. (...) Looks AWESOME! About powering the beast... I've been looking into powering my 5571, which is also quite heavy. My solution was (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) obvious) (...) I tried it :-) I ran an old 4.5 round motor out of a 12 lead acid battery, in a sort of tracked tank. With the battery that weights something like 2 Kg, I had to reduce _a lot_ in order to have it just move. I think to remeber (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) Great model Psi My first suggestion would be to swap the axle diffs from the new type to the old type and use a 12 tooth gear (Rosco's idea I beleive). This will give you extra reduction. When using te new diff you don't actually have to cut (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) I have tried this too, with technic 4.5 volt motors and with 4.5 volt train motors. They make a lot of noise and a lot of rpms... at the end the little plastic axle of the 4.5 volt technic motor died due to heat. The motor itself probably (...) (22 years ago, 17-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
Thank you for your comments. (...) Engine: Deutz BF 6M1051C - V6 11.906 litres 300kW (400bhp) @2100rpm 1840Nm @1400rpm Performance: Max tractive effort 390kN (88000lbf) Max speed 30kph (18.9mph) Nowhere near as much bhp as I would have guessed (and (...) (22 years ago, 18-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) Thanks. (...) That's a great bit of lateral thinking - I have one of those boxes so if my attempts to simplify the drivetrain don't work I'll give it a try. Thanks. (22 years ago, 18-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
(...) There was a reason I didn't go for the old one, but now I can't remember it. (...) I've only got one of these so since I've already cut the crown gears I may stick with what I've got (22 years ago, 18-Jun-02, to lugnet.technic)
|
| |
| | Re: Aviation Tractor MOC
|
|
Hi Great MOC. About the power problem I agree with Jennifer 2 motors should be enough. A problem could be that it is too much friction losses, I had to rebuild the drivetrain in my Tatra before it moved at all. It is possible to skip the diff and (...) (22 years ago, 18-Jun-02, to lugnet.technic)
|
| |
| | Overpowering LEGO electric parts [was Re: Aviation Tractor MOC]
|
|
(...) When I was a young'in I got tired of having to always ask my mom for more batteries to power the lights in my space bace (remember the old yellow 2x2 bricks with light bulbs in them?)... so I put the power leads from my 4.5 into the wall (...) (22 years ago, 20-Jun-02, to lugnet.technic)
|
