By my own arrogance, I accidental killed one of my snakes today.
When I designed and built my new enclosures I knew there was a problem with the doors. They are bottom hinged. This means when you are closing them you have to make sure no snakes are in the area of the bottom. They could get pinched. Causing serious injury or death.
In my arrogance I told myself I would never let that happen.
Today, it happened and I killed a very beautiful 1 year old radix. She was one of my favorite young ones.
I should have designed a extruder device into the bottom of the door when I first designed it.
This has weighed heavy on me all day and I was unable to go to sleep tonight.

I've now designed a very simple extruder device to keep the snakes out of that danger area.
It's a simple design, one I should have thought of.
All that is needed is a bicycle inner tube and a staple gun.
The ends of the door were the first obstacle. Covering this area wasn't the problem, it was making sure no snakes could get behind the inner tube when the door was closed. I solved this problem by folding the inner tube over at the ends. When the door is closed the strength of two layers of rubber will keep the snakes out. Then it's just a matter of stretching the rubber over the bottom of the door.
This effectively seals the bottom of the door and hinges from the snakes. One nice thing about the inner tube is that it can just be wiped off if it gets dirty.
Why didn't I think of this before.
Now I just have to retrofit 22 enclosures.

As you can see from this photo the inspectors were checking my work.