Paulus
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Posts:999
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| 20 Feb 2011 04:24 AM |
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VERY NICE! That's starting to look like a very unique model! |
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DougArcher
Passenger
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Posts:63
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| 21 Feb 2011 12:45 AM |
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Moderators... I believe this should be in Whimsical and Fun trains, Is it possible to move the entire thread or do I start it over there? |
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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SteveC
Moderator
Conductor
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Posts:4028
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| 21 Feb 2011 07:44 AM |
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There ya' go Doug.  |
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DougArcher
Passenger
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Posts:63
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| 02 Mar 2011 01:44 PM |
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time for an update:
I've glued together two roof sections and profiled the front to match the cab. The roof has a bit of overhang which I like, but I may shorten it a bit.
The rear of the roof has been modified to allow me to taper it to the shape of the car body. Now all I have to do is fill in the missing sections of it....
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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DougArcher
Passenger
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Posts:63
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| 02 Mar 2011 04:36 PM |
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I think I've found the drive system I can use..
the power requirements look like they're do-able:
it's smaller than the last one I was looking at |
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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Paulus
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Posts:999
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| 03 Mar 2011 09:31 AM |
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Nifty looking small motor.
But is the thrust enough to get the car going? 180g does not sound that much considering it's a big model.
(the other one had a thrust of 1320g...) |
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DougArcher
Passenger
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Posts:63
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| 03 Mar 2011 11:59 AM |
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Doesnt matter..I called and it's no longer available.... I might have to cobble together my own Contra Rotating shaft system, to which I'll attach an external motor.
trying to figure a system with very little drag.
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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DougArcher
Passenger
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Posts:63
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| 04 Mar 2011 05:54 PM |
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I've been thinking... maybe I should turn it around and run the narrow end up front..
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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toddalin
Foreman
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Posts:1838
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| 04 Mar 2011 06:47 PM |
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Posted By DougArcher on 03 Mar 2011 11:59 AM
Doesnt matter..I called and it's no longer available.... I might have to cobble together my own Contra Rotating shaft system, to which I'll attach an external motor.
trying to figure a system with very little drag.
Why do you feel the need for counter rotating shafts, other than it is different (and way cool)? A single shaft opens far more options. The body torque is not an issue. |
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DougArcher
Passenger
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Posts:63
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| 04 Mar 2011 08:16 PM |
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Posted By toddalin on 04 Mar 2011 06:47 PM
Posted By DougArcher on 03 Mar 2011 11:59 AM
Doesnt matter..I called and it's no longer available.... I might have to cobble together my own Contra Rotating shaft system, to which I'll attach an external motor.
trying to figure a system with very little drag.
Why do you feel the need for counter rotating shafts, other than it is different (and way cool)? A single shaft opens far more options. The body torque is not an issue.
other than it is different (and way cool)?
nuff said...
actually, I've always liked contra rotating props and 3 bladed ones at that.. since I dont do R/C airplanes...this is my chance! |
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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Paulus
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Posts:999
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| 05 Mar 2011 02:31 AM |
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Posted By DougArcher on 04 Mar 2011 05:54 PM
I've been thinking... maybe I should turn it around and run the narrow end up front..
I would leave it this way. It follows the classic aerodynamic design with the thicker part in front and the narrow at the end (like a falling raindrop).
Like you can see this back in airplane wings, cars and submarines.
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DougArcher
Passenger
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Posts:63
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| 07 Apr 2011 09:12 PM |
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Update:
The body is painted. The colors looked better together in my head, my have to repaint the lighter color to a whiter color or change the interior color.
Steps will be black as well as the floors between the doors. Cargo doors will be the red color.
I've pretty much given up on the brushless motor system and will have to come up with a dual shaft system like this:
I need to spend some time at the hobby shop looking at the gears, bearings, brass rod and tubes, prop mounts, props.... yada, yada, yada....
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"Please remain seated at all times keeping all hands, arms, feet and legs inside the train and please seat young children toward the center of the row and away from vehicle openings"
ALL ABOARD! |
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Dave Meashey
1st Class Member
Foreman
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Posts:1122
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| 08 Apr 2011 07:05 AM |
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Doug;
The carbody is really looking good. Best wishes with the drive. I did a lot of trial and error before I found what worked for me.
Best,
David Meashey |
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Paulus
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Posts:999
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| 09 Apr 2011 10:07 AM |
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NICE! |
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weaverc
1st Class Member
Brakeman
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Posts:621
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| 26 Jan 2012 01:32 PM |
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This one was created with various parts including a Jensen boiler with Esbit fuel tabs, unknown lubricator, Graham steam motor, Marklin metal flat car with brass sides added and ball bearing wheels, gears and chain to increase RPM and a penny to keep the prop on. It ran better later with a 4-bladed prop, but not for long and only on very level track.
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Carl Weaver
SA#138
Big Bear Steam Railway
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afinegan
Brakeman
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Posts:706
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| 26 Jan 2012 01:39 PM |
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Have a great idea if I can only get Jensen to sell me one of those turbines. They keep insisting on me buying the whole power plant... |
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weaverc
1st Class Member
Brakeman
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Posts:621
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| 28 Jan 2012 06:05 AM |
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Andrew,
Since Jensen won't sell just the turbine, have you thought of the French made Jc Steam 'Proteus' turbine?
It is a single stage, self starting, steam turbine, with 'De Laval' type steam acceleration nozzles and fully variable forward and reverse speed control throttle, complete with servo control arm. The turbine is machined by computer numerical control (CNC) from solid aluminium and is mounted on a fully ball raced, balanced 8mm diameter stainless steel shaft, driving a 4mm wide machine cut main gear, with metric 0.5 mod pitch, to produce an overall ratio of 8.7:1 through a 1/4" diameter output shaft. Steam Pressure: 35 85psi. There is a video of it someplace on YouTube.
Here is their site:
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Carl Weaver
SA#138
Big Bear Steam Railway
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afinegan
Brakeman
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Posts:706
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| 28 Jan 2012 07:15 AM |
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Wow, those are nice (wife is going to kill me hahaha)! Guess have I have to re-look into the project, just bought a drill press yesterday, finally getting my show started (had the 3 x 5' desks with overhead lights read for some tools for some time).
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afinegan
Brakeman
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Posts:706
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| 31 Jan 2012 12:59 PM |
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You think you can do something with this :-P (28mm brushless inrunner edf) - should be available in almost every model airplane hobby shop pretty soon as replacement parts for the jet
It's eflites new power plant in the new mig-15 there announcing tomorrow (little 16" jet)
(They will probably have a better video of it tomorrow) |
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