Thanks Mark👍😉
Cheers, Doug 😎

Hi Gary, That's a bit harsh on Doug who puts so much into this site with lots of useful information and keen sense of humour .
Cheers Marky

" and then Doug stuck his neb in as he can't help himself. "

Gary? Gary who?
😎

Hi Colin, another useful item from motionco a nice simple gear box with numerous ratio choices.

If l did Martin, it would upset the grandson as well. Hopefully I won't have to worry about it for a few years.🤞
Cheers Colin.

Best Way Colin,
Same as my Myford I didn't intend to part with it but mine was stolen.
Quality machines are hard to find. Unless you want to buy something like a 7 x 10 and spend quite a bit on it to get to a Unimat or Myford level😀

Hi Gary,
As Colin has said Doug (RNinMunich) dose a lot of research for the members of this site saving them time and effort, also the knowledge he freely passes on is also very valuable.

Like other members myself included we try to be as helpful as possible.
Each of us has different strengths and specialties and are able to help other members in those particular areas.

It is because of the good will of the members that has made this site as fantastic as it is.

I like many others hope to be as helpful as possible and to encourage new members in to this very interesting Hobby.

Martin555.

Take it with you Colin just to upset him LOL!!

Martin555.

Good morning Ian, I inherited the unimat from my father, and already my son is trying to get me to give it to him, but I told him that he will have to wait till I'm in me box in the ground.
Cheers Colin.

Hi Colin, whatever you do don't part with the Unimat!

Good morning Gary , yes I have a lathe and mill, also a model makers Unimat lathe and mill.
I will have to see what I need, and try to draw up some kind of plan.
Cheers Colin.

Like your solution to the propshaft problem, that’s slick!

The shafts' bearing's sprockets and chains would be ideal for a paddle steamer, do you have access to a lathe to make bearing housings, small neat ones? As the Motionco bearing mounts are a bit over the top size-wise.

Gary, thanks for the info, and yes doug often researches sites and passes on the links for us to use. I don't have a problem with it as it saves me a lot of time.
I do like what you have done so far and am avidly following your progress.
The shaft and bearing housings are in my thinking for driving a paddle steamer, but electric not steam sadly.
Cheers Colin.

Colin, you asked me a question and I replied, and then Doug stuck his neb in as he can't help himself.

Here's one I built earlier, note the ball-raced main bearings.

Good to hear you are contemplating a STEAM project in the near future, get yourself a TVR1A BB engine in kit form and build it yourself, a 1/2" bore twin-cylinder slide valve, a very efficient engine which only requires 20 - 30 PSI to run flat out. When you have built it and sorted your valve timing, you'll know everything there is to know about slide valves. A suitable boiler would be a 3 1/2" diameter x 6" length, you can buy a kit of parts and save an absolute fortune, I have seen your silver-soldering. Regards, Gary.

Colin ----->>
https://www.motionco.co.uk/chain-sprockets-c-21.html
Cheers, Doug 😎

Great job Gary and a very clever solution to a problem many will now benefit from.
I have to say I got side tracked on my steam project because of a sort of commission build and secondly by the dreaded virus, however be assured it is next on the list.

Hi Colin, and yes of course you can have the name of the supplier of the chains, sprockets, shafts and bearings. It is motionco and they have a lot of interesting gear worth a good coat of looking at, a chain tensioner is not required as just take a link out or add a link when required. The chain is plastic as per the sprockets, but is very very strong, incredibly strong actually. Regards, Gary.

with regard to oil and oiling a steam engine, the steam enters the engine via the lubricator which carries steam oil in the vapour to lubricate the engine internals and moving parts, this is required as model steam engines use an O ring on the pistons, so oil in the cylinder bore is essential to prevent the O rings being shredded. a fine car engine oil is required for crankshaft main and big-end bearings, and all moving joints as per Hackworth linkages and eccentrics etc. The shaft bearings are ball raced sealed for life and the sprockets and chains are of a very hard PLASTIC, although I do admit they look very real so no oil required there.

Can you share the pervayer of the shafts and bearings etc.with us lowly modellers.
I love your solution, and do you have any chain tension adjustment.
Cheers Colin.

Thanks Rick, I appreciate that comment and that's what I had in mind to get the prop shaft to go around the boiler. Then I managed to find a company that made the shafts of either 3 or 4mm diameter plus the bearings and bearing housings, sprockets and chain, basically, everything I needed all from one source at a very reasonable price into the bargain. I have kept the gear ratios at 1 to 1, which could be either geared up or down depending on how it performs on the water. Regards,GLC. (Actually, having solved that problem I seem to have come to a grinding halt on the progress front.) must try harder.

GLC All I can say is wow.Your skill sets and thinking out side the box.Wonderful.
Rick

Very clever way 'round' the problem!

JB

Really clever solution , will follow the build with great interest .
Cheers Marky👍

A great start Gary.

For the benefit of the new guys when an engine like this is used do you have to oil every thing including the chains every time you go to use your boat. ?

Martin555.

I don't know either, but this does happen occasionally, photos seem to just materialise!

Nerys

[Edit] Photos removed martin555.

Hello there, I don't know quite how but some of my photos are on your page, unless you are also building a Puffer with a Cheddar engine???????????????????

As that prop shaft solution is a little confusing hopefully these photos will help.

That's nice, really appeals to me, a steam driven puffer Will follow this build with interest.

Nerys