I have made the ball bearing but they have taken many printing attempts. Unfortunately, because of my design using 2 ball bearings stacked on top of each other the 3-d printers have messed the print up many times. The print takes 16 hours so every time they break it takes a whole new day for me to try to print one.
We have completely destroyed the wind tunnel and are reusing the parts. We have started the reconstruction process and Borga made a sketch of the new design. I have started to make a ball bearing so that the airfoil can be moved while in the wind tunnel to test what the different angles do to airflow.
We have gotten all four of the fans to spin and we are starting the process of rebuilding the wind tunnel. Joe wanted us to rebuild it because of a few issues that we discovered after we had it completely finished. I also completely finished the airfoil and then printed it! It looks good and can be used in the wind tunnel whenever.
We have now gotten 3 of the 4 motors working but we are having some trouble with the last one. I have made some more progress on the airfoil but I am having trouble with the camber line.
Borga and I have been working on making the motors of the wind tunnel spin. We have actually been extremely successful and currently have 2 of them running. As well I have started the process of making the airfoil!
School has come back to in person! We have started work on our wind tunnel again after moving rooms and we also have a new member named Borga S. He is going to be helping us with building and wiring. Also during the pandemic I worked on a 3-d modeling software called OpenSCAD which allows me to make complex structures that are impossible to make in other software. I am hoping to use it to design an airfoil.
So far this year we have only been able to do things online and because of this we have been writing more. This includes both publications and white papers. I am also working on a mechanical drawing of how we want to make the wind tunnel look like. We are planning to make a new design for the wind tunnel.
School has started again and this year we are looking for more. We start in online classes so first we have to prototype online with both 3d printed items and a very detailed schedule for after we get back to school.
Our school closes next week but our group still has plans to meet over zoom and work on ideas for when we get back to school.
We have been working on fixing the wires by taking any mistakes we made and fixing them and correcting any problems.
This week Roman and I started looking at the wires and we made 2 different diagrams on what they looked like. This was to help us visualize the end product.
This week our group has been working on finishing their papers and Roman and I have been working on troubleshooting the wind tunnels wiring and the Arduino.
In the last week, we have all been working on our reflections so that they are completed by the break.
Dawson is making a new panel for the wind tunnel and fixing some of the old problems and issues. Rainer, Roman, and I are all working on our reflections that are due later this week. I am working on communication with Luis about the design of our laminar flow. I need to talk to Allyson soon because I need to know what to do to help her project finish soon so that we will be able to incorporate it into our project.
After getting back from break our group had a team meeting and we discussed the new design for the laminar flow. We decided on a 3d print that brought all the air into one central point where the laminar flow will be generated. Rainer had an idea to lift the anemometer so that the collection point of wind was higher and more central.
Today we were able to get our fence up and it is secured to the wall in 2 places as well as on the wind tunnel in 3. The fence has a door that can be opened in case of needed maintenance. The straws have been completely removed and are going to be replaced by a 3d print.
Yesterday Max finished the wooden box which was well designed so it will work perfectly with the wind tunnel. Rainer is working on finishing the fence and Roman is working on finishing the supports for the fence.
Since the last time, I journaled I talked about new members and what they were doing. I am happy to say that they have completed most of the things that I had assigned them earlier. We are now trying to redo the fence which goes around the wind tunnel with a new design. We also have taken out the straws and Luis, another student helping with our project, will laser cut another design for laminar flow.
Today we worked on a new design offense. Ethan, who works on a different project, helped us in this endeavor with design and construction. We finished it and only have to mount it now.
Throughout this first part of the year, I have gained 3 new members to help Reid and I. They are Dawson, Roman, and Reiner. This year we have already nearly completely rewired the wind tunnel. We are using bus boxes to hold our wires and we have stripped and soldered wires so they run down to the bottom of the wind tunnel. We have created a cage to go around the wind tunnel so no wind blades come out and hit people. Lastly, we are going to finish a box that will hold all of the Arduinos and the display. We are currently working towards getting all the motors up and running.
Today I finished a paper and I am now going to work on the writing pieces for our poster. Reid and I have also been working on a new wiring kit for the wind tunnel.
Two days ago Reid and I got all of the fans working and we are now working on a new plan for laminar flow. We are also waiting for another lab mate to calculate wind speed with the breadboard contraption he made. We are also working on a 3d printed laminar flow nozzle that would replace the straws that we are currently working with. Then we will plan out a way to make the fans not hit each other when we stop and start the WindTunnel.
For the past months Reid and I have been working on fixing the anemometer, which was harder than we thought it would be, and now calibrating the anemometer. The calibration curve we got was straight but not perfect. This is most likely from the friction and air resistance. We are currently fixing the motor.
Today Reid and I have started to graph the m/s and voltage that the anemometer outputs. We also learned that our anemometer was broken yesterday. So, today we are fixing that and graphing our outputs. We are now finishing up the fixing of the anemometer and plan to be able to have it ready by the next class.
For these last few weeks, Reid and I have been working on the Arduino. We had some problems with the code and then we were not able to figure out where the wires go. However today I think I finally put all the wires in the right places. However, because Reid isn’t here today I have no way to test the motors. However, I am optimistic that we will succeed. Also today I was looking for cameras for Molly and Myles. Molly told me that she has an iPhone 10 which can shoot at 1080p at 240 fps. We will use the phone to record the launches from now on.
Yesterday we did a test launch. It didn’t go so well, but I learned a lot about how we set up the rocket. The problems we had were the screw fell out of the bottle and so the psi never built up and this caused the water to flood into the tube. Today I plan to help Reid while Molly and Myles’s figure somethings out.
Today we created a new rubber stopper by using the drill stand and a box cutter. The new stopper is smaller for the new nozzles. We still have to print the other 2 nozzles I designed but we are waiting for a test. We also are 3d printing multiple new chains as we lost the one we had during a test. We are also starting to prepare for a rocket launch during the test.
Today I am working on different nozzles. The nozzle we have at the moment fits on the bottle and stays on. We have only 3d printed ones as we first need to solve the problem on hand. We realized that we can no longer use the rubber stopper so we need an 8mm x 10mm O-ring or a 6mm x 8mm O-ring to fit on the air compressor extension. The pros to the new nozzles are the small size of the exit hole. This is because all of the air/water will be pushed through a small, but not to the small, hole which will make the bottle rocket have more force. The cons are that the water will spend more time on the rocket which may bring a problem. However, we are very optimistic.
Today I started working on the Aerodynamics project with Molly and Myles. I am working with the bottle rocket and I am trying to make a laminar flow nozzle to create a better flow of air/pressure. I am doing this by using 3D printing and using older designs and building off of them. I am also working with Myles to create multiple designs.