Garden Railway Forum

bambuko wrote: ↑Thu Apr 09, 2020 5:39 am These castings are excellent
How prohibitively expensive are they?
Do you have to make shrinkage allowances in your CAD model or does Mike do it?
What other materials apart from white bronze can he produce these castings?

Hydrostatic Dazza wrote: ↑Thu Apr 09, 2020 11:29 pm What is expensive ? Hard for me to answer...

bambuko wrote: ↑Fri Apr 10, 2020 9:24 am

Hydrostatic Dazza wrote: ↑Thu Apr 09, 2020 11:29 pm What is expensive ? Hard for me to answer...

I was hoping you'd indicate the price you've paid for these beauties so that we can all individually decide whether it is something for us as well (we all have different pain treshhold ), but if you cannot (or do not want to) go public with this, that's no problem at all. I can ask Mike directly

tom_tom_go wrote: ↑Wed Apr 15, 2020 8:43 am What is the distance between the axles on the tender?

I ask because you may be able to fit the Lady Anne Slomo that does not use a chain.

Food for thought.
88.9mm however if you fit a loco mech then only one axle will be driven, unlike a loco where the driving wheels are coupled so perhaps one wheel connected to a slow mo may have problems with skidding ? I certainly did not think of fitting a loco mech and Terry never mentioned this in out phone chats.
As I learn more about this little steamer construction I would have never bothered with the pump and fitted the Slomo into the loco, but alas I was too late when I discovered the value of the Slomo, so the tender was added to this freelance design.

tom_tom_go wrote: ↑Wed Apr 15, 2020 10:01 pm Lady Anne chassis:


ladyannekitdimen.jpg.gif


The Lady Anne SSP Slomo fits between the rear axle and middle axle.

All the locos I have fitted with this type of slomo have not experienced 'skidding' while pulling a dead loco that exceeds the weight of the loco pulling:

Keith S wrote: ↑Fri Apr 17, 2020 9:19 pm I think you will be satisfied with the flywheel device being mounted in the tender. With the device not being on a driven axle, of course there is the possibility of wheel-slip on the loco itself when starting, just like you would get with a full-size locomotive. Depending how you feel about it one could argue this is even more realistic, requiring some finesse on the regulator while starting up.

I have a momentum device mounted in a weighted wagon and it seems to work fine with only one axle being geared to the flywheel. I prefer to run without R/C so mine is only there to stop it running "like a whippet" which of course is even more of a problem without R/C.

I too find videos in which the locomotives hurl themselves around masslessly almost unbearable to watch, especially when a great many of them also seem to suffer from badly adjusted valve timing. How the operators find the lumpy chuffing sound bearable is beyond me.

The only time I have noticed "dragging" being an issue is when I have allowed the rails to get very greasy. On greasy rails the locomotive is quite capable of dragging the momentum vehicle but it seems to be a transient effect and again a deft hand on the regulator would mitigate this.

With a hard coupling between your loco and tender I predict you will be quite satisfied with the "Slomo" being in the tender.

With respect to the tender by the way, I have never seen such nice, clean castings as those axle box/spring details. They really look good. That tender will be quite a handsome vehicle in its own right.