Long build.. Talisman 1

[Stuart Badger]

OK - I said it was 3 in the morning and I didn't see your first post showing the lathe or the SIZE of the wheels! Everything I said still holds - just use larger nuts and bolts!

Stuart

[Talisman]

Many thanks for taking the time to reply Stuart i really do appreciate it.
As soon as my silver steel arrives i will get the drive and paddle wheels mounted and probably have a better idea of the way to go from there.

[Talisman]

Hi all,
Sorry if i am questioning the obvious!

The way a paddle wheel works or more specifically the control rod -

The main loading / principal of the the control rod is to stop the eccentric disk from rotating? Not, as i thought, the  main load bearing / driving rod?

The reason i ask is i have never actually had a paddle wheel to play with before and noticed that the loading seems to be fairly equal on all the rods as they are either pushing or dragging the eccentric disk round.
The control rod appears only to be fixed to stop the eccentric 'winding up' and binding with the control rods?
So there is not a great deal more force on it just a little extra sideways force?

Am i understanding or does the control rod do a lot more than i have given it credit for?

[Stuart Badger]

THE ECCENTRIC and its' driver rod are driven by the rotation of the main paddle wheel (via one paddle float)and as such has side loads on it therefore requiring it to be of greater strength than the control rods.

The control rods are only there to ensure that the distance between the rim of the eccentric and the end of the paddle float lever remains the same, thus imparting a position adjustment as the wheel rotates.

Hope thats helpful!

Stuart

[Eddy Matthews]

Kim,

A quick look at Ivor Bittles website may help a little http://www.ivorbittle.co.uk/Articles/Paddle%20wheel/The%20paddle%20wheel%20design%20study%20for%20the%20internet.htm But it does tend to go off into a lot of the maths involved!

Regards
Eddy

[Talisman]

Many thanks for your explanation Stuart.
thanks for your link Eddy although i did  feel my eyes go heavy when he starts the mathematical stuff.  

Unfortunately my silver steel supplier and wood supplier have both let me down coupled with a very busy week ahead means building has ceased for the moment
3 months and 8 hours to paddler day.... need to get a move on if this is to be ready in time

[Eddy Matthews]

You've gone very quiet Kim, I hope that means your hard at work building!!

Looking forward to seeing your progress in due course....

Regards
Eddy

[Talisman]

Hi Eddy / All
Work / life and other commitments have stuffed my building time

As soon as the kids go back to school and i get a bit of time to myself i will be back at it. Still hoping to meet the paddler day deadline - fingers crossed.
Won't have time to get the Jupiter overhauled but may bring her as a static model.

Back soon...
Regards
Kim

[Eddy Matthews]

I know the feeling Kim...... I don't have a workshop, so all my building is done on the kitchen worktop and on the living room floor. We have some visitors coming on thursday, so I've spent all day clearing away all my junk so the place looks half tidy for their visit!

I had to admit that the place looked like a bomb had hit it, so it was about time I had a clear-up!! We now have a living room where you can actually see the carpet, and not have to dodge round bits of models and tools that were scattered everywhere..... Thank god for a very understanding wife!

Regards
Eddy

[djcf]

I know the feeling also, I'm only getting a little bit done every 2nd week on Lochiel     Kim, looking forward to your build commencing when you have time.
regards
Clark

[mjt60a]

Me too, when I have a couple of days off work (which is rare) my 'flavour-of-the-month' project makes (comparatively) great progress, but when I'm working it can take a week to cut out, file/sand and paint a single styrene component 
Otherwise I'd have started a build diary of my Princess Elizabeth build by now, I just can't guarantee when (if ever) I'l complete it......

[Talisman]

Hi All,
Well after a 6 week break / entertaining the kids and other chores I'm slowly getting some time to give to the Talisman build. Don't worry i have been keeping my boat building efforts going over the summer just on a slightly bigger scale - see bellow 

Time is running short for the Paddler day deadline but to accept defeat is not an option ... yet 

Today i dusted all the parts down and reminded myself of where i had left off and what the plan for the build sequence should be.

I also managed to get the paddle sponson bases attached to the side of the hull so Monday i will look at mounting the paddlewheels and eccentric disk axles & brackets.
If that all works out (fingers firmly crossed) then it should be a fairly straight forward build from there ...famous last words...

Until Monday

[Eddy Matthews]

Time is running short for the Paddler day deadline but to accept defeat is not an option ... yet 

There is another option Kim..... Accept defeat, as I have, but concentrate on getting the model to a stage where it can still sail, albeit in an unfinished condition!

I'm looking forward to seeing how you've got on in due course... Just leave the big inflatable thing alone, or give the kids a footpump so they can play with it while you do some real work

Regards
Eddy

[Talisman]

There is another option Kim..... Accept defeat, as I have, but concentrate on getting the model to a stage where it can still sail, albeit in an unfinished condition!

OK will do

Just leave the big inflatable thing alone, or give the kids a footpump so they can play with it while you do some real work

You havent been chatting to my wife have you Eddy ? She's always going on about real work stuff ... a mystery to me 

[Talisman]

While doing some research this eve i came across this bit of video. _ doesn't help me but interesting all the same.
http://www.youtube.com/watch?v=bl1KBHbVX-0