Quadrocopter - Part 3 - Tied Down

By
First of all the name. I've decided to go with CPUV (or Chatur-Pankh-Udaan-Vastu). Thanks Anshuman for suggesting that name.

In the last post i mentioned that i was going to do a test flight and put up a video so here they are:













For the test we (me and my roommate mudit) initially decided to use a RF link to control the quadcopter but due to some technical difficulties (i.e laziness, unwillingness to work and a general lack of interest in actually doing so) we could not actually use that so we put a small program on an ATMEGA16 that initializes the motors and then gradually increases the speed of the motors till it reaches a maximum and then to minimum rather quickly and then repeats the process over and over again.

Now the quadrocopter does not have any gyros or accelerometers as of now to stabilize it (More in part 4) therefore i had to tie it down to a table or else it would have taken off, spun out of control and probably crashed.

Links to part 1 & part 2.

Comments

Post a Comment

Popular posts from this blog

DIY Polariscope

By
Image
A few days ago I was stuck in one of those YouTube loops (happens once a month) and I came across this awesome video on the  Prince Rupert's Drop  by SmarterEveryDay (Excellent channel BTW). About 3:00 minutes into the video they use something called a Polariscope to check out the stresses built up inside the Prince Rupert's Drop. Watching that I realized that I had all the things needed to build this at home. You need the following things for creating a Polariscope : 1) A polarized light source (White in color preferably) - Since almost all LCD's use polarized light to display images you could use your iPad or Laptop screen displaying a white image. I went for my 22" monitor as I needed a bigger surface. 2) A transparent object - Not all objects work well for this as some don't really have that much stress.            - Things that work well - Glass statues, use and throw forks and knives, glue sticks, etc.   ...
Read more

Hobbiton Style Circular Door

By
Image
Over the last year I have been working on the renovation/remodeling of my hotel in Nainital. Now we had a 1600 sq ft. area that was to be converted into a small restaurant for the hotel guests. Being a huge fan of LOTR I decided I wanted the entrance to the restaurant to look like a the door to Bilbo's house obviously with our own twist. Here are some pics of the build. The door is a two panel design completely circular and 7 feet tall. Its 1.4" thick and each wood panel weight in just over 50 kgs. Wood: Sagwan. The hinges were made from 0.25" thick mild steel and cut using hacksaws and files We still have some work left for the interiors and the tables and chairs and i post those as soon as they are done. PS: I'm really sorry for having used imperial units in this blog post but I used these units in my original design notes so thought that is what I should write about. All the other p...
Read more

Carpentry - 1

By
Image
I seem to have gotten a bit of the carpentry bug. The room with the Dragon Door  needed a table and as I did have some spare time I decided to build one. I'm a big fan of really long dining tables because somehow they feel grander. I decided to build one as long as the room would allow. Dimensions : 20 feet 10 inches (about 6.35 meters) x 3 feet 3 inches (about 1 meter) Height (table top) : 29.5 inches Seating capacity : 22 For the table top I decided to reclaim wood left over from the old doors and windows that were taken down during the renovation. I mixed and matched 7 kinds of wood (Tuna, Sal, Pine, Cheed, Sagwan, Sheesham & Deodar), glued and nailed them to a wooden skeleton structure (again made from reclaimed wood). For the legs I decided to make 6 circular rings to match the door of the room. The rings were made with Plyboard & MDF and later panelled with small pieces of deodar wood. After that I started work on the chair...
Read more