Scalefour Forum

Very impressive Jeremy! My singles will only be required to pull Roxey Stroudley LBSCR 4/6 wheelers, or Branchlines Billinton 6 wheelers, or a couple of my own Stroudley or Billinton kits (omitted from their ranges). The Roxey ones have had their horrible inside bearings replaced with my own W irons...

Been watching this thread carefully I have already rebuilt the chassis on my GCR 422 Single. When I built it many years ago I sprung the wheels although not CSB style I used Alan Gibson sprung hornblocks. The basic problem was tractive effort, it struggled to pull the tender. I got round it by chan...

I thought this might be useful for other modellers: Just for the record: I have contacted Loctite directly today to ask about the most effective anaerobic retainer for us as modellers to use - I didn’t actually state that we are 4mm / 7mm scale modellers (!) - but i did mention gears of brass being ...

Tried once more then email.
M

I couldn’t get your name to stay in the box.
Must have been a glitch in the system this morning.
M

Will I’ve tried to send a PM, but not sure if it actually sent.
Mike

Just by the by: Axle weights for the Stroudley singles were as follows:- Grosvenor: Leading axle 12tons. Driving axle 15 tons. Trailing axles 10 tons. Not quite equal. Abergavenny: 11t 6cwt. 15t 0cwt 7t 18cwt Production G: 12t 0cwt 13t 10cwt. 7t 18cwt Sussex: 11t 2cwt. 14t 7cwt. 10t 0cwt. Mike

That’s odd because I can see them!

Well, I do have several singles to build! Thought you might like to see the actual prototypes! One is already built, though the chassis is not yet fitted with its motor - the unique no203 ‘Sussex’. 203-Sussex-a 2.tif Then three or four other singles - the small cylindered 325 ‘Abergavenny’, the larg...

davebradwell wrote:
Most important part of a worm gearbox is means of handling end-thrust. Why is the worm is so long?

DaveB

That’s a very good question! That’s the length they come from Ultrascale. I’ve been tempted to cut it in half and just order another worm wheel for a second set at reduced price......!

Mike

Although some time has elapsed since the last post (!) on this thread, I’ve been away, but having reread it, Will’s comment about a tender drive interests me. Because of this same adhesion issue, having passed E.B.(Exclusively Brighton) Models on to its present proprietor Ian MacCormac, I designed w...

Ted: Apologies for delay in response, as temporarily in a 4G signal-free area on Galloway peninsula, as opposed to Gloucestershire, where 4G and home WiFi abounds! Please could you elaborate on your thinking regarding weighing the axle? I’m not sure I quite follow what you’re saying in your final pa...

Just checked, and the G singles wheelbase was:-

8’ 0” + 7’ 9” for the unique large boilered ‘Grosvenor’ (with 6’ 9” drivers).

The same for ‘Abergavenny’ - the smaller version, with 6’ 6” drivers.

And 8’ 0” and 7’ 11” for the ‘production’ G class.

Mike

An excellent treatise!

Just one small point... 1/8” axles are used throughout Stroudley’s G class, that Will correctly deduced I was enquiring about, even on the tender, as it uses the same wheels as leading and trailing wheels on the loco.

Mike

Incidentally, which motor rpm is recommended as a general rule, bearing in mind all the mitre gears are 1:1?
Mike

If you don't want to wait for the really cheap ones from china I got my 0.5MOD 20T mitre gears next day from here: https://www.beltingonline.com/dbm05-20-delrin-500-mitre-gears-7084?zenid=1b52rnt72ujdco7frqfcdd7a07 To go in here with a 300 rpm N20 motor: Kelly Chassis.jpg I needed to cut off the bo...

ianlbsc wrote:https://www.rmweb.co.uk/community/index.php?/topic/45248-judith-edge-kits/page/37/

is the start of the bevel gear drive from Mike Edge.
Cheers Ian

Thanks Ian

Thanks Keith and Dave for those observations. I can’t quite locate the model of n20 motor and gearbox - presumably it’s an eBay Chinese one? I have a small drum motor with enclosed gearbox driving my turntable very effectively. Dave, I agree regarding the need for two uv joints, having had an Isetta...

Thanks for your thoughts Gents. Yes it’s just a set up to see what it looked like a few of years ago when checking the etch was centring the gears correctly. I didn’t photograph the revised model, which sticks to the same principles but has quite a few amendments. I asked Chris a couple of years bac...

A7D25C49-DB71-42C4-8B2E-6DA2CF5C35EE.jpeg Having spent around £25 per set on gears for just one loco, to furnish my tender drive reduction box and loco worm and wheel extension gearbox, I’m looking for a cheaper alternative to a Ultrascale gears. They’re good, but I have at least another 4 locos th...

Sorry Gents - misunderstanding - I meant Magnetometers to check for magnetic field re pacemaker diversion!!
Apologies, no hijack intended.
Please proceed - starter signal raised!

They’re seriously expensive, even on eBay!

I hope this will be forgiven as a bit of diversion, but are any of you users the proud possessor of a heart pacemaker? I have rebuilt my late father’s car battery charger into an RSU, quite successfully, but have since then had to have a pacemaker fitted, and have been warned by the technicians to a...

In MRJ 21 page 55 Allan Sibley described how he arranged the drive for a GWR Dean single. The drive was on the trailing wheel via an intermediate shaft geared to the motor and the "driving" wheel was weighted and allowed to go along for the ride. This arrangement had the advantages of 1) ...

billbedford wrote:Sorry, I can't send this by PM.

E007-2 Instructions.pdf

Many thanks Bill

Mike