I know I have seen some posts in the past, did not want to shell out over a $100 for some pre made clamps and like to build 
I used some 1/2 inch (12mm) Baltic birch scraps. Some 1/4 20 inserts and bolts with knobs, well under $15 total.
If someone wanted actual dimensions i could upload a quick sketch, just let me know
[attachimg=1][attachimg=2][attachimg=3][attachimg=4][attachimg=5]

I used some 1/2 inch (12mm) Baltic birch scraps. Some 1/4 20 inserts and bolts with knobs, well under $15 total.
If someone wanted actual dimensions i could upload a quick sketch, just let me know
[attachimg=1][attachimg=2][attachimg=3][attachimg=4][attachimg=5]