This year we expand on our skills of mechanical drafting skills from the year before. We started off by drawing 4 multi-view drawings like last year. Then we drew a classroom floor plan on a 1/4" = 1' 0" scale. Then for our last drawing, we did an isometric drawing of a toolmaker’s vise.
My Drawings
Plate numbers 1 and 2 were warm-up drawings in order to get us back into the drafting mode and style and refresh our brains. Both of these plates were 3 view orthographic projections. On both of these drawings, I had a couple of simple mistakes since it’s been a year.
Plate 3 and 4 were our first harder cad 2 drawings and both of them were 3 view orthographic projections. Again I had a couple of simple mistakes with neatness and dimensioning.
In plate 5 this was our first time ever doing a floor layout as well as using the scale. I had a lot of fun with this drawing since it is very simple and easy. Plus I got a very good grade on it. On this drawing, we drew it to a 1/4"=1'-0" scale which means for every 1/4 inch represents 1 foot in the building.
Plate 6 was the first time that we drew an isometric drawing. It was very different because it was the first time drawing a false 3-d object in Cad class but I had fun with it and again got a good grade. An isometric drawing is when the horizontal lines are at a 30 degree angle and the circles become ellipses to create a 3-d look.
Mechanical Drawing Tools / Equipment
Throughout this process, we used many drafting tools ranging from tee squares, triangles, compasses, templates, multiple weights of pencils, and all kinds of erasers. The most frustrating tool was the compass because it caused errors that almost ruin a drawing. Therefore when the circle templates had the right size circle I was happy to use them.