I started with a table from BDGsales and made just a few small modifications to it.  The most obvious is the provision to raise the lower third of the table so that the bottom's knees can be raised.  Since I intended to use this station for very long sessions, I needed a way to "unload" the bottom's back. If have your bottom lying completely flat on this table, I have found that eventually the muscles will start cramping, which can be very painful and end the scene. The easiest way to unload the back is to elevate the knees.  So I added some hinges and an adjustable stay to the lowest section of the table's surface.  The image on the right below, shows this modifications in greater detail.  (Click on the images for a larger view.)  The hinges I selected are intended to be used on a bench seat, and they move forward as the surface is raised.  This is a desirable feature in my application.  The adjustable stay I used is intended to be used for supporting a drafting table.  I am not completely satisfied with this stay, because I need to use a tool to tighten it enough so it does not slip.  But it's the best solution I have found so far.





The images below show the other two table modifications.  As you can see in the left image, a couple of the table bolts have been replace by threaded rod.  This rod will be used as an attachment point for the arm tubes.  In the right image, you can see that I have changed out the shoulder pipes for longer ones.  These longer pipes will make it easier to attach and remove the head box.  With these longer tubes, the head box can just be raised and lowered as needed, rather than removing it completely.




(Click on these images, to enlarge the images.)