Scalefour Forum

The port in lever 10, tray 2 locks 14 and locks 13 either way BUT, means that when 10 is reversed 11 is NOT locked and could be moved under a train.

Sorry, I missed that one.
Your solution looks OK.

Which guitar string is the correct one for AJs Keith and is Ernie Ball the only brand where you can get the qualities you're after? As Julian has show there are other makes, the music shop I used (now gone) sold Ernie Ball and they seem to be common on line, a Google search fot guitar string does t...

The problem is that the wire in Bill's kits comes in a short length and significantly curved, pulling to sraighten is not really practical. Using Ernie Ball strings you get around a meter and it has very little if any residual curve over the 20mm or so required. I have not found any need to try and ...

I do find the bits of wire in the kits difficult to use because of the curve. I replace it with pieces cut from Ernie Ball Guitar strings I buy seperately, these straighten out enough when removed from the packet. You can solder the wire to the bearing holders although I have never found it neccessa...

Attached revers engineered table from your latest. This time I included a listing of the bridles then the locking table. Apart from the duplication of 4 locks 13 noted by Howard there are two possible issues noted that need attention, shown on the bridle list. SRH Table 1 - inc TC's comments.xls Reg...

OK, I'll do an other reverse engineer soon. Apologies I missed your lock bar butts the first time. Should have a better grip on your drawing style now.
Rgds

Tony,
I have had a go at reverse engineering a locking table from your chart, perhaps you can compare it with the original.

Rgds

I thank the contributors to this thread. No one seems to have noticed that this loco is fully assembled. I am loth to strip it all down as a lot of effort has gone in to making the valve gear fully working. I need a solution if one exists where I have limited access only to the BACK of the wheel. W...

Hello Keith, Ignore the "John" - its Howard here! I had intended to write Howard but my fingers seem to have gone wrong, sorry. I have heard 'dog' used but nib is a new one on me. By my time in the drawing office we were drawing relay circuits so this mechanical stuff was just from book l...

John,
Where does the 'nibs and bridles' terminology come from? Is it GWR practice? They did love having their own naming conventions. I, and the IRSE, have always known these as 'locks and bars'.
Regards

Everybody can initiate threads (topics) just back off into 'radio control' and start new topic.
I will be able to move appropriate posts from here when there is a new topic.
Rgds

Tony,
You don't use the 'img' tags for attachments, just use 'place in line'. The 'img' tags are to link to images elsewhere on the internet, eg if it was on your own website.
That is a 'dog chart' not a locking table.
Is it meant to followthis locking table?

PS Should we change the title of this thread to make it more general?

No, start a new thread (topic).

I think its largely a matter of sleeper thickness, the ability to lay and ballast in one operation was one of the advantages given for use of thin sleepers in the first place. I think that is the best method for thin sleepwers as needing only a single layer makes it quite tricky to ballast after lay...

I've got some new Gibson wheels with dimples only. They aren't available with a hole. All that's required is to drill the hole vertically. Hah! - not so terribly easy to get it really accurately vertical. I'm pretty sure I saw here a jig for doing this that may have been commercially available, wit...

It bowed because it was coated with glue on one side and not the other, commo0n enough problem which we went through in the first few posts.
Rgds

Looking at your photo there appears to be a burr on the inside edge of the axle hole - perhaps investigate and remove. Same goes for the axle end, needs cleaning up with files and emery paper, aim for a very slight bevel on the end, no more than a qurter mm. A countersink bit twisted in the fingers...

The photo below shows the way I do it.

Or rather it shows the end result More information on the way its done would be very useful.
Regards

I think you stand a better chance of concentricity with steam era/Branchlines wheelsets rather than any plastic centered type. They do 3ft disc wheels.
Rgds

Not how I interpret "across the end"
Rgds

Easiest way to pin an axles is to cut a slot across the end of the axle at a slight angle so it is deeper at one side and hardly goes down the other side at all. Pop on the axle as usual. Then use the slot to drill into the wheel hub. Put in a wire pin, fill up slot and clean off. Don Roland taught...

Looks like you have since succeeded. I have moved the replies to your new topic. "GWR Number Plates"
For others wondering the new topic button is on every subforum page. eg from here click 'return to steam locomotives' at the page foot.

Whilst such intensive running methods are fine for those of us with layouts they don't really help Bill with his question, how does he confirm that a design change has made an improvement? As a manufacturer time is money.

If these are coach bogies then I suspect that a free rolling test as described by Guy, and with each bogie variant tested on the same vehicle, is the best you can do. As soon as you couple it to another vehicle you bring in a whole load of additional variables from interactions through the couplings...

Thanks for that, those Huntly Archives films are fascinating. I like the Edge Hill traverser with the Capstans mounted on it, and the Broad St hoist with wagon turntables.
Rgds