My current shop would be hard pressed to complete even this first project, but I think we will get there eventually.

So here is the concept shelf.

It is a wall hanging model, that when built will probably not go on the wall shown above, but will hang in the room, and hold some of our collections. I designed these shelves with Cherry and Maple in mind, but am not married to these species of hardwood for the project.

The sides and shelves will be made of solid material. The back of the shelves will be the exception, and will be made from 1/2” plywood. Optionally the cleats can be made of 3/8” plywood as well.

I left off the hinges, as I did not have the time to draw them, but I think euro style or barrel hinges would work well for this project

Let me know what you think. Comments and criticisms are always welcome.

Here is the file.

This project is close to 4 years old. I made it with the scrap oak, I had left from the little table I posted a project about last week. It is a fun little trebuchet, put together with pegs, and the throwing arm on a threaded rod. The picture below shows it with a 2.5lbs weight, but at times I have had up to 7.5lbs on it. With 21” (15.25” above the fulcrum) it will throw a bouncy ball about 50’ on a slight uphill. (Never fired it on level ground.) The ball will usually continue to travel to the end of the street, or 3 more houses down.

We have used this at cub scouts, to wing 1” bean bags, with the scouts awards in them, at a castle. But only with the current weight. THe guy whose idea it was to try it, test fired it with the 7.5lbs, and sailed a beanbag all the way across the church santuary. :D

I think my oldest son and I will start a new one tomorrow. Maybe a catapult this time, or an onager. Anyway, I know a couple people asked for plans of the trebuchet that was posted last week, so I decided to make a sketch-up drawing of mine. If you would like a copy of the sketch-up file, I will be happy to pass it on. Just drop me a note.

I added the model to google sketchup warehouse and found many others out there too!

I restrung the swing arm, and put a new pouch on it. The boys removed the old one. The firing mechanism is a rope over arm (string over in this case), with a nail as the sear. (very high tech)

Here is the pin that hold / releases the string

Here is the pouch that hold bean bags, and bouncy balls.

Next project….. The desktop Onager!

If I get a good video of it shooting, I will be happy to post it. I have already drawn it in sketch-up. Now just to construct it.

The bridge.

Wire frame showing the construction of the table

The woods depicted in the table design are primarily cherry and maple, with walnut accents.

Front View

Left View

The table.

Joint Detail

This is my first project in sketch-up. I typically use auto sketch to draw my projects, but I think I have found a new favorite in sketch-up. Who knows, I might even try to build this table eventually.