Wednesday, February 11, 2015

My Day Job

Here's a quick job I knocked together for one of our instructors. This sort of work is fun for me. Instructors at the science center often need or want to do something in the classroom or lab requiring parts that aren't available off the shelf. Being able to understand what they want, then translate it into something that  A) can be made, and B) will work, is key to this job. This one was easy, because as I talked with the instructor about what was needed, we were able to pretty much design it and sketch it on the spot.

So if you need a way to fasten an old pin-style poster holder to vertically mounted unistrut without having access to the end of the strut, here you go!



Next up: a portable outdoor summer cage for our tortoise & box turtles that will keep the chelonians in and the kids out!

Sunday, February 8, 2015

Gardeners Vs. Squirrels

This weekend I needed to make a lectern to set on my desk in the office so I can stand while I work, but I also didn't want to miss the planting season so I made the prototype of a modular squirrel exclosure instead.

Why? Squirrels have been sapping my will to garden. Margaret and I have enjoyed gardening the last couple of years, but both the containers on her deck and our plot in the community garden are ravaged by squirrels on a regular basis. It's not just stealing produce when it's almost ripe, either. Whenever we work in the garden, they seem drawn to the freshly-dug earth, because within a day or two after we plant seeds or seedlings, squirrels come through and re-dig the area. I have no idea what goes on in a squirrel's brain, but my favorite guess is that new-tilled dirt looks like some other squirrel might have buried an acorn there, so they make sure there's nothing to be found. In the process, they uproot our beet seeds or lettuce seedlings. If we were in the backwoods I could take care of this the old-fashioned way, but we're inside the city limits so I am forced to watch in impotent rage . . .

This is quite demoralizing! So with some cheap fencing material and the Kreg jig, here's what I did:


I brainstormed some ideas before I started.

Hanging on to Christmas Fun

I was afraid my spoon blanks would dry out before I got to them, which is why I was storing them in a plastic bag full of chips from the carving process. Then I was afraid that fungus would get working on the blanks before I got them finished up, so I decided to wrap them in plastic and freeze them. The idea is that if the wood is below freezing temperature, the fungus will at least slow down until I can carve the wood. Those little white packages, lower left in my freezer, are my spoon blanks:





Will this work? I don't know, it's an experiment. I think it probably will. I know that wood can dry out while frozen (water can sublimate). Hopefully, double-wrapping the blanks in plastic will keep enough water in the wood to be easy to carve, while being frozen will slow the fungus down enough so I won't be working spalted wood (unless I want to, of course).



I'll keep you posted!