Let’s get cutting y’all! -Jennifer Chaparro, Ever-Green Design Firm

Hello Again, its me Jennifer from the Ever-Green Design Firm to inform you about how our Principles of Engineering class is going. The first day back from Spring Break the Engineering class was introduced to their next milestone, the entire class period was spent on this introduction.

For this third and last milestone what is expected from all the groups is to create a chapter over a topic relating to the project, such as electrical systems, airstream history, scale modeling and lots more. These chapters will all be conjoined to create an Ebook, we will sell this book for anyone who is interested in restoration of Airstreams. Another thing that is expected from each person is to spend one of their saturdays for 4-5 hours building and/or restoring the Airstream. And lastly, we will update our inspirations boards with all interior pieces such as colors, textures and themes that we want for the airstream.
The second class day, the Ventura gals had the opportunity to spend 6 hours of their day to visit Austin Community College. This trip was not possible if it were not for Pam Powells invitation to come, as she is one of the professors for the carpentry courses in ACC. The girls were able to see how a workshop actually looks and works.When we arrived to the campus, we got an overview of the place, and then we were told the safety guidelines when working on the workshop. After that we had a tremendously delicious lunch, we were able to eat chicken fajita tacos with chips and salsa and avocados. I have to say the entire class was full of happiness after the meal. After we ate, we went into the workshop and pieced together our toolboxes. Pam Powell was able to explain to us the process of how she and her fellow partner, Brant, were able to create each piece of wood needed to arrange the toolbox. After we were all done with our toolboxes we rode the Metro Bus back to school. These two class periods we were able to learn about our last milestone and also about tools and how they function. This week was very productive for the Principles of Engineering class.
The research that I am going to do today will over sanding, how the grit number affects the wood, and the three ways you can sand. The finer the grit the wood is sanded to, the less stain color will be retained on the wood when you wipe off the excess. And if you do not want to fine sand, then there is no point for you to go past #180 grit. The sanding scratches won’t show as long as they are going the same direction of the grain. Cross-grain sanding scratches arent very visible under a clear finish, but they show up very clearly under a stain. Whenever you are in the process of sanding you should practice first on a scrap of wood to determine which grit to use and how your finish product would look. There is three sanding methods to do: hand sand, block sand, and random orbit sanders. The most efficient way to use sandpaper when hand sanding is to tear the sheet into thirds crossways and fold one of the thirds into third lengthways. This method reduces waste to none and also reduces the tendency of the folds to slip as you’re sanding. If you are sanding complex flat surfaces by hand, it is recommended to use a flat block to beck the sandpaper. Most woodworkers use a random-orbit sanders because it is very efficient, easy to use and leave a less visible scratch pattern compared to a vibrator sander due to the randomness of their movement. Two things that everyone should know is that don’t press down on the sander when sanding, let the sanders weight do the magic! Pressing leaves deeper and more visible squiggles that then have to be sanded out. And secondly its better to sand out the squigglies by hand after you have progresses to your final sanding grit.
I guess this is it for today, toddle li do! And I have to go do some other Engineering homework, see you in 2 weeks! Thank you.

Source: http://www.popularwoodworking.com/techniques/rules_for_sanding_wood


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