Nimbus

By now, I'd be really excited if this was for flat-bottom rail !

The Nim.

1 hour ago, zr2498 said:

Must get the painting done!

Dave

The way you've built them, that would almost spoil them!

The Nim.

One benefit of using PayPal as a seller, was that they sent an email alert when someone paid for an item.

Does eBay do the same now? Otherwise it means polling one's bank to determine when it's 'safe'

to despatch an item.

The Nim.

2 hours ago, Zomboid said:

The traffic is presumably very different now compared to when the old layout was designed since a large proportion of the suburban service will be going to Moorgate or St Pancras instead of KX.

No, there are insignificant, insufficient even, numbers of suburban services off the GN onto Thameslink core. There are/were going to be some WGC starts, but otherwise through services serve Stevenage and Finsbury Park, anyone starting between those points requiring a change and spell of thumb-twiddling at Finsbury Park. At least that's the pattern evident around those times I've needed to plan journeys. I find it doubly irritating that the introduction of these reduced the frequency of the inner-suburban service from my two local stations!

The Nim. 

52 minutes ago, caradoc said:

 

Would the best thing not have been to build trains suitable to run on their intended infrastructure ? After all, we have been doing that in the UK for nearly 200 years ! Perhaps that should have been in the design specification..... (or perhaps it was ?)

 

It was a while ago in another thread around here, I believe, that someone with inside knowledge said that BR had come to the conclusion that engineering the rolling stock to perform well on less than 'perfect' track was more cost-effective overall than to keep all track perfect. Underlying this of course was the industry structure of the day, with one body overseeing both stock and track.

It seems not too dissimilar to the situation on Britain's roads, which are tolerated in a worse state than other countries, and imported vehicles can give quite a harsh ride. My 1991 Rover 200 is way more comfortable than my Honda Civic, which has already fractured a road spring at 20k miles. On the rails, my experience of Class 313 vs. 717 is directly analogous! Lots of shock loadings going on under the 717 units!

The Nim.

22 hours ago, Valentin said:

I am determined to get ER11 collets for my Proxxon MF70. First step is to get one of the tunning spindles from USOVO.

I'd be interested to know whether any post-Brexit import gotchas arise, as this is a mod I'm interested in too.

The Nim.

The least your seller could do is to forward you the tracking number he must have received. Its format should

look familiar to someone around here. If he can't do even this, he's not up to the task of selling reliably!

The Nim.

5 minutes ago, Nearholmer said:

Anyway, I never did like 313s, awful plasticky things, not a patch on a 2-BIL.

Anyway, I never did like 313s, awful plasticky things, not a patch on a Cravens 105

(Actually, I got quite fond of 313's, more so when Cl 717 arrived.)

The Nim.

2 hours ago, Gilbert said:

With thanks to Ian I offer my "box-opening" photo. All looks good and arrived swiftly.

Looks like it puts some of the "Pros" to shame!

The Nim.

On 12/02/2021 at 09:32, bécasse said:

Excellent. Almost certainly winter 1956-57. It wouldn't have been much different - some diesels, most carriages in maroon - when Keen House opened three years later.

Yes. Could perhaps get a bit more precise if given the date of 67793's works visit - it has acquired the later emblem, and has yet to get filthy.

The Nim.

4 hours ago, atom3624 said:

I suppose mine had 2 'issues', which seem to relate to some observations mentioned.

1. The upper smokebox door lamp bracket was canted to one side - I could easily straighten mine with 'gentle persuasion' without damage, so not like others' which have been have generally been found in the boxes.
2. Don't know the name - fall / protector plate for the front 3-link - missing from the detail pack. Looking at Sam's Trains, his pack did not contain this either.  I used one which approximated adequately - from a Royal Scot pack.

The coupling 'banger plate' was fitted to protect the AWS receiver on the front of the bogie. If you loco does not have the AWS battery box beside the driver's side cab footsteps, then the banger plate is inappropriate.

The Nim.

19 hours ago, Robin Brasher said:

I wonder if Hornby will be making a model of it next year.

They must be tempted to examine the feasibility of the whole rake, as a parallel to the West Coast's own Coronation coaches.

I for one, would be tempted by the set in BR livery, running as a fantasy, but plausible, 'Talisman'!

The Nim.

On 03/02/2021 at 11:56, Bucoops said:

Absolutely stunning - massive congratulations to all involved.

... including Gresley's design team!

The Nim.

You're effectively measuring the armature resistance.

The Nim.

3 hours ago, njee20 said:

Anything with compound curves too!

e.g. Class 47 cab roof!

The Nim.

What are the Covid-like dots/particles on the bridge and brackets for?

The Nim.

For me, the greatest challenge is acquiring sufficient accurate dimensional data of the prototype object.

How did you get the information for the Gardner?

The Nim.

I recall prototyping something along these lines about 30 years ago. There was then a TDA-something from Thomson-CSF which was an integrated 741 plus power stage in a package with a heatsink. My feedback element used an operational transconductance amplifier, in an attempt to get an auto-adjust of the resistance compensation.

As far as I recall, my tests with a nearly new Hornby Class 29 revealed it approximated zero velocity by vibrating back and forth by about 6mm. I was strangely delighted for the remainder of that afternoon!

I eventually concluded that compensation ideally needed to counter wiring/track/wheel resistance for perfect  compensation, and  it would be difficult to pre-judge the variation over a layout. 

It's still in a cupboard somewhere...

The Nim.

Anyone fancy acquiring a GS - GS28 to be specific?

As formerly owned by Ronnie Lane.

The Nim.

5 hours ago, -missy- said:

I also designed and made a plate (3DP) that sits onto of the original housing, this was designed to mount the new motor along with a top bearing for the new longer splindle shaft.

There could be a market for that!

The Nim.

I'd be very interested in seeing details of the brushless motor conversion. The noise from the standard setup is pretty obtrusive!

The Nim.

What characteristics lead you to your verdict of 'outstanding'?

The Nim.

Dave Alexander made a whitemetal kit. He may have supplied motorisable bogie castings, as with his BTH Type 1. That wouldn't stop a builder preferring a Lima chassis of course...

The Nim.

It's beginning to sound like some among us think the world be a better place without Hornby to whinge about!

The Nim.

Do we know the last dates in service for this month's planned retirees? 119 included, istr?

The Nim.