I managed to find a 19" elo touchscreen for £50 on eBay! Absolute bargain considering they're about £400 new!
The only tools I used were -
My trusty wood saw
Steel rule, pencil, sharpie and set square
Angle grinder for cutting out the mounting brackets
Sanding block (made from an offcut from the table)
Bench vise and big hammer for bending the brackets
Step 1: Add Struts to Mount Monitor To/add Strength and Cut Away Anything in the Way
As a note, I left the little piece in at the back for two reasons. The first was so that it could continue to provide a little support to the work surface. The second was that it was screwed in from behind and I didn't want to have to pull the table out to remove the screws ?
Step 2: Cut a Hole Out of the Work Surface
Pretty self explanatory step - have a good measure up then mark and cut the hole for the screen. I fixed the pieces back down one at a time and cut them in situ. Remember though - measure twice, cut once. I ended up having to adjust my measurements as I hadn't realised the support struts weren't an equal distance away from the centre line ?
Step 3: Fabricate/buy Some Cheap Brackets Then Mount the Screen
I just knocked up some quick brackets out of 1mm mild steel then drilled some holes for the screen mounts/fixing screws.
To ensure the whole thing sat nice and level I marked a line along the support struts at the height I wanted the mounting screws to end up at then fixed the brackets in place temporarily and transferred the line onto the brackets. I then marked the centres for the mounting screws and drilled them out.
When measuring for the height of the monitor I added on 3mm to let it sit 3mm below level. You'll see why in the next step ?
Step 4: Make a Nice Trim Panel to Hide the Edges of the Monitor
Originally I had wanted to router out the underside of the mdf for a perfect fit but I haven't got a router so decided to make a trim panel out of 3mm hard board (hence the reason for mounting the monitor 3mm below flush). For this I did the outside cuts with the handsaw, the inside cuts with a Stanley knife and the radiuses on the inside corners with a 10mm drill bit. After cutting it out I tidied up all the edges with a sanding block. Just remember to take plenty of measurements and take your time for a nice fit.
Step 5: Screen Protector
Even with the screen protector on, it doesn't eliminate any of the weight resting on the screen so I won't be storing anything heavy on top of it.
Step 6: Voila!!
Hope you've enjoyed reading this instructable, happy building!