GE 70 Ton Switcher ( SP Livery )

[Ropefish]

This design is based off of tony Sava's GE 70 Ton but with modifications to the overall structure of the frame and added interior, Its color scheme is based of the SP #5100 and i think it came out pretty good however the windows do not come in dark bluish grey so ill have to paint or find 3rd party versions. (  the render rendered four black blocks that aren't in the studio model, no idea why. ) The design was made with circuit cubes in mind, however i have to remove some cab detail in order to fit in the battery box... im also fiddling around to try and get to motors inside. Otherwise im very happy with this model and it will also be built physically to pair with my AC-9

[Ts__]

Looks coherent. However, I would have concerns with the drive/transmission ratio. The loco is quite large/heavy for a circuit cube motor and this is very slow in 1:1 ratio. That certainly doesn't fit the prototype properly.

Can you not create more space for eg an M-motor? E.g. use of panels/tiles instead of the bricks in the side wall?

Thomas

[Ropefish]

2 hours ago, Ts__ said:

Looks coherent. However, I would have concerns with the drive/transmission ratio. The loco is quite large/heavy for a circuit cube motor and this is very slow in 1:1 ratio. That certainly doesn't fit the prototype properly.

Can you not create more space for eg an M-motor? E.g. use of panels/tiles instead of the bricks in the side wall?

Thomas

I very well could but this then brings up the issue of needing to run it with a powered up/power functions battery box... It can be done but then you have a box car permanently attached to the switcher and i just hate that aesthetic! Ive seen the cubes run in the 1:1 ratio and i think I'd be fine with it running on a switcher but i have a few designs im working out still, I have a disconnected with doing gearing digitally as I can't really 'feel' the function of it. The current design I have has two cube motors however and I'll test that when i get around to making this physically.. .and if it doesn't work out i can always use them for something else. Working on smaller engines like this really does press hard on design choices though, lots of compromises to be made.

[Ts__]

A battery box in an extra car would not please me at all, a locomotive MUST be able to drive itself. I fully agree with you.

Yes, the circuit cube motor runs 1:1, but then the locomotive is very slow. I also use this in a very small shunting locomotive, there it fits. But we are talking about 8-9 seconds per meter, that is really slow ;-)

If the speed is ok for you and you can even install 2 motors: go ahead, I have said nothing ;-)

Thomas

[Ropefish]

1 minute ago, Ts__ said:

A battery box in an extra car would not please me at all, a locomotive MUST be able to drive itself. I fully agree with you.

Yes, the circuit cube motor runs 1:1, but then the locomotive is very slow. I also use this in a very small shunting locomotive, there it fits. But we are talking about 8-9 seconds per meter, that is really slow ;-)

If the speed is ok for you and you can even install 2 motors: go ahead, I have said nothing ;-)

Thomas

Im actually running this idea to make up something, Adding a Calf switcher and turning it into a Cow/Calf switcher but based of the well the above hah.  it should be a simple affair but not something that'd exists in real life... more of a "what if" i suppose. I am able to fit the larger 12T gears in but it takes some fiddling I'm sure. Probably wouldn't have consider new possibilities if not for you pointing things out!

[LEGO Train 12 Volts]

8 hours ago, Ts__ said:

If the speed is ok for you and you can even install 2 motors: go ahead, I have said nothing ;-)

Thomas

I would have suggested the same solution indicated by Thomas, try to intsall 2 cube motors.

Nice locomotive bye the way!

[Ropefish]

Made i into a Cow/Calf config, With this I can run up to /three/ motors in 1:1 or Three(Possibly just two gotta move that battery box around a bit) in 1.6:1 ( i think that's close to what the gearing is anyways ) and the "cow" half can still run without the calf. in Cow/Calf config I also don't have to sacrifice the cab interior. Again though I left this configurable as some might not like a train that never technically had this configuration IRL but I really do like this as a "what if" locomotive.

[XG BC]

On 11/19/2021 at 12:48 AM, Ropefish said:

Made i into a Cow/Calf config, With this I can run up to /three/ motors in 1:1 or Three(Possibly just two gotta move that battery box around a bit) in 1.6:1 ( i think that's close to what the gearing is anyways ) and the "cow" half can still run without the calf. in Cow/Calf config I also don't have to sacrifice the cab interior. Again though I left this configurable as some might not like a train that never technically had this configuration IRL but I really do like this as a "what if" locomotive.

what if you used an older 9v block battery box sideways? that should work!

[Ropefish]

2 hours ago, XG BC said:

what if you used an older 9v block battery box sideways? that should work!

i could but getting my hands on one would be the real trouble. Though im sure some company might reproduce them? ill look into it however ;D

[XG BC]

try it in studio first to see if it fits.

32 minutes ago, Ropefish said:

i could but getting my hands on one would be the real trouble. Though im sure some company might reproduce them? ill look into it however ;D

 

[Ropefish]

16 hours ago, XG BC said:

try it in studio first to see if it fits.

 

messed around with it, would fit but this would mean I'd have to remove a lot of stuff from the calf section and then it would end up being needed 100% instead of being optional

[XG BC]

1 hour ago, Ropefish said:

messed around with it, would fit but this would mean I'd have to remove a lot of stuff from the calf section and then it would end up being needed 100% instead of being optional

aah ok

[Ropefish]

 

here she is all sticker’d up and running! Only powered by a single circuit cube and she can pull a decent bit.. though I have the option to place ina. Second one and remove cab detail for the control brick! I’m calling this one finished for now.

[Ropefish]

13 hours ago, Vinceres said:

But why? The locomotive is to heavy to move on its own, is that true?

the single circuit cube is a bit weak on its own, the locomotive won't be able to move much this way. Using two you just got that much more pulling power.