tycoonuk

And finally, in addition to the above suggestions which are known trouble spots; if none of these prove to be the cause of the derailments, take a steel straight edge and test the wheels each side to see if all three in each bogie sit correctly on the rail.

 

If the brass bearing inserts are tight in the bogie moulding, this can take on a slight banana shape resulting in only two out of three of the bogie wheelsets being on the rail at any time. Very apt to cause the leading wheelset to climb over the outside rail on a curve, especially under load. If you want to see what is happening most easily, unclip the outer cosmetic frames of the bogies, and run the loco with the wheels exposed.

 

Simple to fix if this is the problem, very slightly enlarge the locations where the centre axle bearings seat until they are an easy rather than tight fit.

Thanks for that info. My sound version of 66411 does the same banana effect as well as the bogies not moving correctly like I think is caused by the ride height.

Ok I know I'm waking up a long dead post here, but, I just thought I would comment to say that this solution has worked for me this evening. I had 2 Ews 66's ( 66077 & 66209 ) both coming off on points. The 1mm plasticard method just worked an absolute treat for me. Problem solved, 2 runners now ! I knew it must be something to do with the locos as opposed to the track as I have other 66's that run through it all beautifully. My problem, as described above was bogie clearance (ie there wasn't any).   

Glad you rewoke this topic as I am having trouble with my Bachmann 66411 Sound loco coming off the tracks on bends and some points.

Sometimes I see one axle of the set of three lifting up whilst the other two on the track and it seems that the bogies are touching the body work which I need to sort out.

http://www.facebook.com/angloyorkshirerailway

Hi

You can not read CVs on a Digital Cobalt ip..  

The three 'setting' Accessory address numbers 197, 198 and 199. But you can use Accessory operating address numbers from 1 up, avoiding 197, 198 and 199.   197 is used to swap the normal direction of travel from one side to the other side.  198 is to remove the self centring feature. While 199 sets the self centring feature for easier motor installation etc.   All addressing is carried out using the Accessory commands and moving the little slide switch to the Set' position once commands are sent the switch is returned to the 'Run' position

The Cobalt is not programmed on a programming track output but via the main 'Track' output of the DCC system.

 

I produced a video showing how easy these are to set using a Prodigy Advance and a NCE Power Cab DCC system if you want to watch it.  The 1 or 2 button presses may equate to left or right direction arrows buttons on some DCC systems.

https://www.youtube.com/watch?v=Cs6KzOYIpHo&feature=youtu.be

Thanks for this Brian. Since reading this article I bought a Prodigy Advance and followed your video and everything works well. Time to sell the Dynamis!

Many thanks.

Those are 197,198 and 199 from what I read..... not looked at that as got the write problem. Should I be looking at them first or how do I programme it correctly?

Hi,

I am new to all this so some "easy" help would be helpful please.

I have a Dynamis Ultima Controller and several DCC Concepts iPDigitial Point Motors.

Before I install them to my layout, I want to programme them and test them so I set up a service track and connect point 1 to one track and point 2 to the other track and tried to read / and programme it.

I got a Error 11 Read Error and when trying to programme Error 12 Write Error.

I tried it with another motor and just the same.

The Ultima manual is absolutely useless, so can anyone else help me please.

Many thanks in advance.

J. Matthew Horton