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Movable truss pier on wobbly roof terrace, Arny

Movable truss pier on wobbly roof terrace

Movable truss pier on wobbly roof terrace, Arny

Movable truss pier on wobbly roof terrace

Description

I have a great roof terrace facing south and offering 150 degree view, 
BUT it ha s wobbly wooden deck on it.

So I have been trying for a while
- to have a mobile setup I can move inside unless I stargaze
- not to suffer from the wobbly ground to ruin the images
- still being able to breathe and move around if necessary

To achieve that I needed
- the pillar to be disconnected from the wobbly wooden deck
- a quasi permanent pillat that can stay outside and yet host my gear

The solution:
- underneath the wooden deck 3x 6“ alloy plates resting on the concrete base
- each carrying a M10 threaded bar
- which is terminated with an M10 long bolt that offers a cavity on top for the pier to be stuck in
- the mobile pillar rests losely on 3x M8 bolts in the cavity of the M10 bolt with 3 M8
- a star like base structure of 3 alloy 8x3cm bars carries the truss pier
- each of the 3 star like base bars are tightly connected to the truss to eliminate vibrations
- on top of the truss pier the AM5 mount connection is bolted to the pier
- marks on the truss allow for identical placement of the mount and thus save polar aligning each night

Setting up takes about 5 minutes, as only the mount and the scope need to be place on top of the pier.

Works beautifully - even though not as perfect as a concrete filled steel bar, but allows the terrace to serve its original purpose as well and does take care of most vibrations, ie. I may breathe and move around, just not stepdance :-)

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