Table is cut to 50x50cm and is 4cm thick (That is an good thing that the weight gives it some good stability)
If i had to do it again, i think i only will have made the depth 40cm but the 50cm wide is perfect.
For mount on the sides, i used two Aluminum angle 40x40x4mm length 40cm (yes they are shorter then the depth to keep them a little in)
I selected them to be 4mm thick to have strong mount of the vertical lift
https://www.ebay.co.uk/itm/301135398191"60x40MM Z-axis Manual Column Lifting Platform Laboratory Optical Displacement Platform Stroke 50MM/80MM/120MM Y"
I have selected 80mm stroke and that is perfect
https://www.aliexpress.com/item/33043505392.htmlit is costing a little but i am very happy with it and think that it is an perfect solution.
As further upgrade to the setup i have order an light box and a fume extractor
The light box is this one, it is to get more light and be able to under light pcb
https://www.amazon.com/Huion-A3-Light-Tattoo-Tracing/dp/B00DNPCZVG?ref_=ast_sto_dpThe fume extractor is this one, it looks to be small in size and has both light and fume extractor so it help pull it away from the microscope lens.
it will be mount on the lift table on the back side
https://www.ebay.co.uk/itm/203508336404Tooms