(if you have downloaded files earlier than evening of September 21, please re-download. I have made a few corrections)
This is a revised enclosure for the new - SMD based hardware version of the DiY geiger counter (http://www.ebay.com/itm/162018488365 ) by my colleague - eBay vendor impexeris ( http://www.ebay.com/usr/impexeris) .
This enclosure is for use with SBT-11 or 11A ( СБТ-11 or 11A ) Geiger-Müller α,β,γ tubes.
At 0.25mm layer height tube fits nice and tight enough.
I use two 11mm long (with head), , ∅2mm screws for enclosure case and two to 20mm long (with head) ∅3mm bolts for the tube extension.