Cast Iron Spiral Assembly
Posted 11 February 2014 - 07:26 PM
So, my idea is to use to 3 wedges of dry hardwood at each step, with the centre pole in, to make sure the assembly stays true, if anybody with experience of these items has any suggestions/questions it would be appreciated, ie. without wedging the centre pole, if this is not necessary, it could be dropped in post assembly and also mean the steps would not need to be taken up and dropped, sorry, placed over the pole. Each step has a rounded profile on the bottom of its column which fits into the top of the previous step, the socket on the top of each step is hollowed out slightly and seems to self centre the join, there is a space as though for some packing of some sort.
Thanks for reading, any helpfull comments appreciated.
Posted 11 February 2014 - 07:33 PM
Posted 11 February 2014 - 08:40 PM
I think I'd approach an engineering works and ask them to produce some sleeves that fit in to complete the surface contact deficit right the way around the pole, but you'll probably find that it would be cheaper, and better, for them to turn down some steel dowel to the right diameter and do away with all the above. Engineering works are cheaper than you'd think, as they do this day in day out so ask for a price before you dismiss it. Offer cash as they'll probably do that "on the side".
Posted 12 February 2014 - 07:00 AM
Posted 12 February 2014 - 08:56 AM