[TT120 Layout. (Gravesend)]

@Andy Stewart, it is very likely that your edit window has timed out. Just post the dimensions here and I’ll add them to the image. R-

[HM DCC Security Issue]

This thread is now locked in order to prevent further speculation. R-

[HM DCC Security Issue]

Thanks, just to be on the safe side we will pass that to George now. R-

[TT120 new build - Sanctuary Junction]

That looks great, well done. R-

[Recommend a Stay Alive for Class 08]

3 hours ago, DuTTchy said:

Hi @RB51,

The way i wrote it down is a bit confusing, the first line is about the video.

My English is a bit rusty, i don't use it every day🤔.

 

That’s ok, the main points were there perfectly explained. R-

[Recommend a Stay Alive for Class 08]

Hi @DuTTchy, how did you manage to cut the bulkhead of the cab away so neatly? Also, I think you are showing Insulfrog  points in your video not Unifrog. I can change it for you if you like. R-

[The main A1/A3/A4 Chassis & Bogie problems & fixes]

Struggling a bit to find a suitable non-conductive material to fashion into a washer. R-

[Dimensions and Clearances for the TT:120 scale]

As reported in this thread [where I will continue this conversation] the loco is now quieter over points, but the inner wheels still lift on curves. R-

 

[The main A1/A3/A4 Chassis & Bogie problems & fixes]

The b2b adjustment has certainly quietened down traversing points. However the inner wheels of the bogie are still lifting on curved track. Time for the @David-370477 washer treatment. R-

[Dimensions and Clearances for the TT:120 scale]

We’ll see, it seems more challenging tbf. I have made an adjustment to 10.4. I’ll report back tomorrow. R-

[Dimensions and Clearances for the TT:120 scale]

Thanks all. I have just re-measured and the b2b is definitely 10.2. I imagine the safest way to adjust would be to remove the bogie? Just to be clear I am using Hornby track.

[Dimensions and Clearances for the TT:120 scale]

Right, so the tiny screw at the back of the arm. Yes, tight and arm straight. R-

[Dimensions and Clearances for the TT:120 scale]

If you mean A it looks like Hornby have replaced the black tape on a screw that looks as though it is fully home. Or did you mean B?

[Dimensions and Clearances for the TT:120 scale]

I think the bend up/down procedure is what they did last repair, when I got frequent derailments on R3 curves. It is odd that they always sign off the job with “ tested - ok “. R-

[Dimensions and Clearances for the TT:120 scale]

 

Front bogie is awry somehow, not sure what is causing this but I think the adjustment Hornby have made has caused a further problem. This is on a R4 curve and the front bogie can be seen to lift and make contact with the first driving wheel, only visible from inner rail. On R3 that causes a derailment. On R4 it clicks back down after a few seconds and off it goes for another circuit. I can see nothing wrong with the track and there is nothing caught on the underframe. R-

Edit: no adjustment has been made to any b2b.

 

 

[Dimensions and Clearances for the TT:120 scale]

Yes, inside back of flanges. There is a noticeable “clatter” going through points, but the bouncing and eventual derailment is on a R3 curve.  I think from what you’re saying I should try to ease the wheels together a tad. R-

[Dimensions and Clearances for the TT:120 scale]

My Silver King has just returned from the menders [Hornby] as it was constantly derailing and apparently needed the front bogie bracket to be adjusted. Running this morning on an R3 curve [previously problematic] it ran perfectly for about 6 circuits and then I noticed that the bogie wheels where lifting and falling - giving the appearance of a slow bounce - before leaving the track. I am using Hornby track, so confirm the 12.1 inner rail measurement but it looks as though the b2b is a bit out. This looks to me to be 10.2. Am I reading that correctly?

 

[Login In Difficulties]

Do you get any error codes? R-

[Holway Green]

18 minutes ago, dBerriff said:

I have chosen to stick with Hornby track for my first TT:120 layout so I can let you know what works for me.

Ditto. R-

[Decoder failures - the supplier's experience]

Kapton tape. R-

[Crescent Valley Heritage Railway]

That’s fine. You are not expressing a negative opinion. R-

[Wagon weights and Tare - am I correct?]

Tare weight is unladen weight. R-

[Use of LaisDCC "stay alive" on HM7000]

Yup, I can find this 

The HM7070 Power Bank will keep locomotives running over any potential dead spots. It works in a similar way to 'stay alive' or capacitors which are available from other manufacturers.

And this

(The Power Bank is not suitable for use without an HM7000 decoder, connecting it directly to other decoders or directly to the wiring of a model locomotive may cause damage to the Power Bank)
 

Nothing about being especially designed though.

R-

[Use of LaisDCC "stay alive" on HM7000]

Where does it say that the Hornby Power Bank was especially designed for HM7000 decoders please? R-

[Dimensions and Clearances for the TT:120 scale]

@ateshci - good find there and a valuable resource. Unless and until a knowledge base [or similar] comes along could you put them both in either your album or the general album? R-