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Total is $50
Cut the 20mm extrusion into ~18" pieces (make them a little shorter than the pick and place drawer.
Attach the pieces with L-brackets so that the L-brackets face each other on the inside of the holder and the outside right edge is flush with the drawer. Keep the left side loose for later adjustment
Cut two rails from 1/16" material with 5mm drill holes so that the top edge doesnt rise above the JEDEC tray thickness
Attach the rails with T-slot nuts.
Place the tray on the holder, slide the left side in and tighten.