Fixing Feed Issues:

Mishra’s Deck Box is adjustable to address issues with feeding.

If you are experiencing issues with cards not feeding smoothly, getting caught, or double-feeding, you can fix this using a 2mm Hex Key for older units. Newer units have a single screw and a slot and use a TR10 Torx Security driver or very small phillips-head.

To put it simply, the 2 vertical walls, that sit above the wheels, control the flow of cards. They can be adjusted up or down to control that flow.

Raise the wall: lets more cards through at once. Do this if they are not passing at all, or barely getting one card through at a time.

Lower the wall: lets fewer cards through at once. Do this if you see 2 or 3+ cards coming through every time, or 2+ cards starting to feed, then not pushing all the way through.

DON'T OVERTIGHTEN THE SCREWS!!!

 

More detail:

The screws circled in red hold in the plate that controls the height above the feed wheels.  If you adjust this plate up, it will allow easier passing, thicker cards, or double-sleeved cards. If you adjust the plate down, it will prevent double-feeds, or better feeding for thinner sleeves.

It may be easier to loosen just one screw, then slowly loosen the second one until the plate will just begin to move. Then make a slight adjustment, tighten one screw, and then test your shuffler. Repeat on each side until you find the desired adjustment point. Then re-tighten the screws. Be careful not to over-tighten the screws, as you can break the plastic. Just snug is sufficient.