Secure slide box for transport

SummaryThis design is a box to securely send glass slide samples by post. It uses foam to insure the samples are well maintained and 6M3 bolts to close the lid.There is a clearance of 6mm that i use to put about 6mm of foam on the bottom and 2mm of foam on the top.I designed this box for slide thirds (2525mm square slides, 25 slides) but you can also find the files for complete slides (75*25mm, 10 slides).