Step 1: Materials
I used an angle grinder with an abrasive cut off wheel to cut it to size.
And a marker to draw the cut lines.
Then Burr whip to clean the edges and holes up.
Step 2: Cutting
then I laid the plexiglass on the table and made a mark on each corner to indicate where to cut.
then I used a straight edge and marker to draw the cut lines based on the corner marks.
I then clamped the plexiglass down lightly to a table so that the area I'm cutting out hangs over the edge of the table.
I found that it was really easy to cut thru and keep a straightish line with the cut off wheel. It works cutting in either direction.
I did hold my breath however because I wasn't prepared for the nasty dust that coats everything as you cut the plexiglass.
So wear a mask.
I laid the cut piece in place on the table and made these marks:
I placed my vice on the glass exactly where I usually mount it in the center, and marked the slots where bolts go to hold it down.
I drew a square that's bigger then the slot length and shows the width of the T-slot on both sides of the vice.
I removed the Vice, and placed the angle fixture that I use on the plexiglass, and mark where I need holes to mount it and for the center adjustment.
I put some ⅝ square tubes under the plexiglass and then drilled\milled the holes and slots out with a ⅝ end mill.
I just held the plexiglass down with my hand and slowly drilled out the areas that I marked.
Step 3: It Works!
Now I just have to slide the T-nuts into the slots, and put the plexiglass down and the mounting bolts just stay there.
I can quickly change from Vice to fixture without having to completely clean out the slots and bolts and threads.
if I keep nuts on the bolts I'm not using, they plug the holes pretty good, and hold down the glass
Also it gives me a surface to write down important numbers and such with a dry erase marker.
Hope this was helpful!
Thanx for reading