Small powerful springs

May also be worth trying Skegness Springs - we use them for work related items, with excellent service at sensible prices. Website is www.skegsprings.co.uk, and they will do small quantities.

I saw on another thread that has a connection to riding trucks, that they suggest rubber door stops as the spring.

Ian S C

.

That's why I suggested looking at Moulton and Indespension ... both of whom have variations on the theme.

MichaelG.

You noticed it, but I think others may have missed it in the original post. I wish they would keep up at the back

Actually I was thinking indespension as well, but I'd forgotten Moulton.

The 'rubber solution' turned out to be incredibly easy, it took ten minutes to cut some test blocks, choose a size and fit four to the chassis with contact adhesive. I can change the characteristics, just by cutting new blocks.

Neil

So you now need a Zebedee avatar ?

BOING! said Florence.

Rick

"Time for bed" said Zebedee !!

Some HGV's have rubber springs, these are fitted in a sort of V formation and are in compression and torsion. Often found on cement mixer trucks and bin lorries. I think may have been used on rail vehicles. These would be simple to make and give better performance ? Can't remember any details but should be on google.

The shock absorbers or to give them their correct name dampers in a lot of cases have bump stops fitted to the damper shaft which in effect are a progressive spring which are designed to increase the spring rate for a small movement (travel) of the suspension. Although some are rubber most or at least the better ones are a foam polyurethane. May be some stock polyurethane could be machined into a conical shape to give a progressive spring rate to allow for differing weights, may well work for passenger carriages as well.