Tiny Motor/gearbox question?

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HobbitFertang

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Hi folks, I bought this 12V motor/reduction gearbox (60 turns per min) combo on Amazon for £6.90. Hadn't realised it would be so tiny! (probably should have guessed from the price). My questions are: 1) would it be any use to power the classic Lehmann Rigi 900 cable car and 2) what battery would I use to power it?? Happy New Year one and all Motor_gearbox.JPG:)
 
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HobbitFertang said:
Hi folks, I bought this 12V motor/reduction gearbox (60 turns per min) combo on Amazon for £6.90. Hadn't realised it would be so tiny! (probably should have guessed from the price). My questions are: 1) would it be any use to power the classic Lehmann Rigi 900 cable car and 2) what battery would I use to power it?? Happy New Year one and all View attachment 336899:)
Click to expand...
Hm it might it might not, you could see how it goes with a 9v normal battery. It would just be turning a rigi wheel with cable so may work ok.
 
HobbitFertang said:
Hi folks, I bought this 12V motor/reduction gearbox (60 turns per min) combo on Amazon for £6.90. Hadn't realised it would be so tiny! (probably should have guessed from the price). My questions are: 1) would it be any use to power the classic Lehmann Rigi 900 cable car and 2) what battery would I use to power it?? Happy New Year one and all View attachment 336899:)
Click to expand...
12 V motor so I'd try a PP3 9 Volt battery for testing....
 
These little N20 motor/gearboxes are adequate for a light load..

It should be fine for the cable car.

There are a number of people who use them in their scratch-built loco's, and they are fine it a light model, with (say) three skips, or one or two small coaches.

PhilP
 
It looks very much like the motor gearbox used by Loco Remote in his 3D printed industrials, his are powered by 3.7 li-ion battery, so you might want to try a smaller voltage first.
 
JimmyB said:
It looks very much like the motor gearbox used by Loco Remote in his 3D printed industrials, his are powered by 3.7 li-ion battery, so you might want to try a smaller voltage first.
Click to expand...
Though they are available in a range of motor-voltages.

PhilP
 
Hi Folks, this is my Lehmann Rigi 900 cable-car mod using tiny motor/gearbox . . mentioned earlier. It's clearly a Baileys-fueled Christmas bodge (couple of lolly sticks glued in there!), but seems to work ok. The power comes from a PP9. The gearbox is linked to the manual crank (as supplied) by a short piece of stiff plastic tubing. Only problem no reverse as yet.Cable_car_2.jpgCable_car_1.jpg
 
HobbitFertang said:
Hi Folks, this is my Lehmann Rigi 900 cable-car mod using tiny motor/gearbox . . mentioned earlier. It's clearly a Baileys-fueled Christmas bodge (couple of lolly sticks glued in there!), but seems to work ok. The power comes from a PP9. The gearbox is linked to the manual crank (as supplied) by a short piece of stiff plastic tubing. Only problem no reverse as yet.View attachment 337001View attachment 337002
Click to expand...
Is the Bailey's actually in the cable car ? :nerd:
 
Very clever

For reverse all you need is a dpdt switch and some wire

www.instructables.com

HOW TO: Wire a DPDT Rocker Switch for Reversing Polarity

HOW TO: Wire a DPDT Rocker Switch for Reversing Polarity: When you need to control a DC motor (such as a DC linear actuator) you usually need to be able to swap the polarity on the wires going to the motor. A double pole, double throw switch is used for this purpose but you have to wire it up...
www.instructables.com www.instructables.com

Dan
 
If you want it to be entirely automatic, then you could use something like this....
www.ebay.co.uk

DC 5V 12V 24V 2-Way Self-Locking Interlock Relay Module Flip-Flop Latch Relay UK | eBay

Mode: interlock+switchable mode. Interlock+switchable mode: This mode has two interlocks and can be turned off. If input 1 triggers, L1 will work, and L2 will disconnect. Widely used, the interlock/self-locking relay module supports multiple ways to trigger and switch relays.
www.ebay.co.uk


Rik
 
I've used dozens of those teeny tiny gear motors,,both for projects in my garden railway and in my Lionel "O" gauge layout. They are available in a myriad of gear ratios, which makes them ideal for most any project. They are surprisingly powerful.

Here are a few scratch built projects I've used them in.









 
Hi fDSC_0045.JPGolks, I've just bought this 12V 'interlock relay' on the advice of ge_rik (thanks btw). Unfortunately, my electronics & jargon knowhow doesn't extend to wiring it up for the purpose of operating an 'up & back' cable car mechanism. It came with no instructions. The board would be operating the tiny motor/gearbox shown earlier. Can anyone help, please??
 
HobbitFertang said:
Hi fView attachment 337540olks, I've just bought this 12V 'interlock relay' on the advice of ge_rik (thanks btw). Unfortunately, my electronics & jargon knowhow doesn't extend to wiring it up for the purpose of operating an 'up & back' cable car mechanism. It came with no instructions. The board would be operating the tiny motor/gearbox shown earlier. Can anyone help, please??
Click to expand...
Hi
Yes, most of these modules come without instructions but there are sometimes wiring diagrams on the listing which help shed some light.

You are going to need two circuits - one to trigger the relay board and the other to power the motor.

Trigger circuit
Screenshot_2025-01-15-17-29-35-259.jpg

You'll need a 12v supply for this then two micro-switches, one at the top of the cable car run and the other at the bottom. Position the switches so the cable car will press them when it reaches the ends of its run. As you can see, the positive from the power supply is connected to one side of the micro switches and the output from the switches then goes to the module input connectors X01 and X02. Make sure the jumper (the white dot in the diagram) is from the middle pin to the H pin.

The Motor Circuit

Screenshot_2025-01-15-17-28-10-726.jpg

The supply for this side of the circuitry needs to be whatever works best for your motor. If it's 12v then you could use the same supply you are using for the triggering circuitry.

Hopefully, the above diagram is self explanatory, but if not, let us know and we'll guide you through it.

Rik
 
Actually, looking at their diagram for reversing the motor, I think they've got it wrong. Without trying it out, I can't be sure, but I reckon this is how the motor circuit should be wired.
Relay reverse circuit.jpg

Rik
 
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