Skip to main content

Clipboard Field Table for Smartphone Microscope - Part 1


I was a little disheartened when I discovered some portable tables under $30 that were far nicer than what is shown here, but after constructing this one I can confidently say this one has some advantages. Number one, setup is a cinch. Slam the post in the ground and sit the clipboard atop. Construction is a cinch, too, and that counts for something in these projects. Lastly, none of the components is single function. The clipboard retains it's original function, and the pipe can be used to hold a camera, as well as be a post for an emergency tarp shelter. Additionally, slender emergency objects may be stored in the tube, and it can be used as an emergency channel for collected water. Ok, really starting to stretch it, but tubes are really useful!

The Build

Charlotte schedule 40 PVC tubing used, 1/2 in. Cut about a 1/2 in piece of tube to secure to the clipboard with crazy glue (sanded the flattest PVC end before gluing; applied glue to PVC and clipboard, had acerone on hand--literally). Use a 1/2 in connector to connect the cut post (angle cut on one side for ground penetration) to the clipboard. I didn't have an angle saw so I got a 3/8 in x 2 in bolt, 2 washers and a nut. Tightened a 4 in metal cutoff disk with an internal washer (made from an aluminum soda can puncture opener; may not have been necessary but I wanted to minimize movement of the disk while cutting) to the bolt, washers, and nut. Then put the remaining bolt into the drill and tightened. Worked for cutting PVC! Need to still consider how to secure PVC while cutting. Table clamp was not enough for accurate cutting.

Comments

Popular posts from this blog

Learning to be a TN Amateur Naturalist

#1 Google hit for "TN amateur naturalist" http://tnnaturalist.org/ Memphis Chapter, has good contacts from the biggest Naturalist institutions in Memphis. http://tnnaturalist.org/4-Memphis.html Promo of program from TN State Parks https://tnstateparks.com/get-involved/tennessee-naturalist-program The books I got from Memphis Library (Ben Hooks), the 500 section (574) on the 3rd floor. It will be good to reach out to some of the Memphis Chapter folks and see what I get back. Have to think through what "reaching out" means.

Plastic Origami Field Use Microtome

Plastic origami (plastic folder source) worked well to make specimen holder. 2 widths possible by either folding down on bottom to furthest stop or by placing bottom together in slit cut. Slide holder is filled with water and specimen is hand advanced with the slightest of nudges over the length of the specimen holder. Cuts are made on the other side of the glass slide, which holds the specimen holder in place and also acts to create a smooth cutting surface for better quality cut (using standard razor blade). The glass slide has a semi-ovular cut from the bottom using a steel wheel glass cutter (see video). This cut allows the specimen to advance beyond the glass so that the specimen can be cut. Cross sectional cuts of stem are picked up with needle nose forceps and placed on a slide. Extra water was absorbed with Kim wipes separating slides. Clear tape is used as cover slip to secure specimen to slide and then specimen are examined using Carson handheld microscope. ...