Hi guys,
Thanks for all the replies and suggestions.
I think I'm going to do something along the lines of either:
-The lift-up coffee table mechanism (thanks freddy)/the concept posted by woody, e.g. 2 brackets on both edges that then lift up to change the height
-The keyboard tray ones e.g. with the bracket(s) fixed to the top of the desk (either a central bracket, or two either at the edges or a bit further in), not the sides
So either (sorry about the bad drawings):
or
For the coffee-table type one, I'm thinking along the lines of having it slide out on a runner, then being able to lift it out when it reaches the end of the runner, to then rest on its brackets to make it higher. Would two thinner brackets be better than one thicker central one (on the edges of the shelf), for rigidity? And, I guess it would be better to put a metal bracket on the edge of the actual shelf for the brackets to screw into, rather than screwing the brackets directly to the wood?
For the keyboard-tray type one, perhaps the bracket fixed to the top of the desk would be hinged towards the back (locking when in the top position), allowing it to be positioned at the back of the desk (underneath) when not in use. Or I could perhaps have the brackets on runners that are fixed to the top of the desk, allowing it to be pushed back. Though this option is perhaps more complicated to do?
I need to figure out which is best/neatest/easiest to operate in terms of it folding out/back to where I want it; but just with regards to rigidity (the keyboard is 10kg and doesn't really want to wobble/move at all/much when played), I wonder which would be better? The shelf would be moving up approx. 16cm from its lower position, when in use, and the depth of the shelf will be approx 31cm (just over the depth of the piano).
Thanks again guys.
Thanks for all the replies and suggestions.
I think I'm going to do something along the lines of either:
-The lift-up coffee table mechanism (thanks freddy)/the concept posted by woody, e.g. 2 brackets on both edges that then lift up to change the height
-The keyboard tray ones e.g. with the bracket(s) fixed to the top of the desk (either a central bracket, or two either at the edges or a bit further in), not the sides
So either (sorry about the bad drawings):
or
For the coffee-table type one, I'm thinking along the lines of having it slide out on a runner, then being able to lift it out when it reaches the end of the runner, to then rest on its brackets to make it higher. Would two thinner brackets be better than one thicker central one (on the edges of the shelf), for rigidity? And, I guess it would be better to put a metal bracket on the edge of the actual shelf for the brackets to screw into, rather than screwing the brackets directly to the wood?
For the keyboard-tray type one, perhaps the bracket fixed to the top of the desk would be hinged towards the back (locking when in the top position), allowing it to be positioned at the back of the desk (underneath) when not in use. Or I could perhaps have the brackets on runners that are fixed to the top of the desk, allowing it to be pushed back. Though this option is perhaps more complicated to do?
I need to figure out which is best/neatest/easiest to operate in terms of it folding out/back to where I want it; but just with regards to rigidity (the keyboard is 10kg and doesn't really want to wobble/move at all/much when played), I wonder which would be better? The shelf would be moving up approx. 16cm from its lower position, when in use, and the depth of the shelf will be approx 31cm (just over the depth of the piano).
Thanks again guys.