Memorial Day- No Meeting
Election Day for Presidency. Poll Results
1 for Christian, 5 For R.D. (DracoTheDragon), 11 for Co-presidency
Instead of giving a typical speech, the future presidents surprised the team with a rap battle for the first time in Hydra History. Though a couple of lines were a bit bawdy, a majority of the rap contained robotics related references pertaining towards personality, competitions, and engineering. Additionally there was a "presidential debate". The team and our Mentor, Marian Manganello, asked us various questions regarding our views on the team, our future plans, and our capibilities.
Today we placed our focus on protobot
With protobot, we continued to work on the boomlift and started working on a claw system. The boomlift was hard mounted to 2 regular gears onto a pre-made motor mount supplied by vex. A second motor mount was added as well to place a motor for extending as well. We added a motor on the second motor mount and continued to add racks to the linear slide. For the claw, we salvaged any small pieces of metal we had. Fingers were created and a gear ratio is set. Currently the plan says to make the claw at a 3:1 ratio to minimize the rotating speed of the claw and add gripping power.
On the main robot, we worked on minor additions. We removed the standoffs which conflicted with going up the bump. We also redid the drivetrain cortex. rather than mounting the cortex horizontally the cortex is vertical. This way, we minimized on excess metal and still maintained usefulness of the cortex. Cables are easily accessible, the power switch is accessible. Vex net is Protected but open, Battery mount is protected yet open. Additionally, we constructed a basic catapult. It's made of a lock plate, a scrap piece of plate metal, a 17.5" Channel, axles, 2 screws, 3 wire motor, and zipties to which acts as a bowl for the balls.
Reflection + Future Plans
Our tempo is plateauing. Part of the cause is all our other devotions, however the biggest issue is that we aren't combining our systems or doing any programming. As a result, at our next opportunity, we need to focus on electronics and programming then combining the systems and working to combine the systems. However, we have cadded out the design so there shouldn't be dimensional issues.
Also, due to procrastination, officer positions and vice presidential elections are occurring the 3rd-7th. As a result, our last week will be close to dead. However, because of this, we are going to release more and more theory regarding the robot and strategy
Additionally, we plan on upgrading the website. News coming soon
Summer Schedule:Weekly Updates
When summer starts, we're basically locked out of our pieces. So because of this, the team decided to take parts home and establish multiple summer meetings. Because the meetings are tentative and summer is unpredictable, starting on the 8th, we'll post an update whenever we hold a meeting. Meetings will vary from education to building.
The Drawing Board: Large Ball Manipuators
In this cad model, you can see the chain bar, old hanging mechanism, and a linear slide. This linear slide was our first idea for the large ball mechanism. As we've mentioned in the past, this mechanism created problems with our intake. When extending out, the rollers and linear slide would rub. originally, we planned to make this forklift operate like "Massey University" in round up. The forklift scoops from the bottom of the large ball while the pair of shaking the manipular or dragging the bottom of the large ball against the barrier when we drive back. Since the gap of the forklift was fairly wide and the center of gravity was close to the bottom, the ball would sink through the forklift partially and the barrier can then hit the bottom of the large ball
This was one of our hypothetical shooters. Like the forklift we originally planned, we think we can scoop balls from underneath. Then, but lowering the lift, we can launch these balls with enough speed to get over the barrier. Properly tensed elastic, shown in yellow, will be used to expand and control the angle of the system. The arm is represented by the center bar while the forklift is represented by the side bars.
While i was trying to decide what engineering stuff to study, i remembered the degrees of freedom of a steam engine. I then realized we can make a claw using linear slides. Rather than facing the difficulties of a shooter or overcoming the dimensional difficulties of the forklift, This claw may have what we're looking for. The outermost linear slide is represented in red. The inner linear slide is blue. Plate metal is grey, Intake is black, and the roller is green. The red linear slide is mounted towards the back of the intake, while the blue linear slide is mounted on the rollers. As the rollers spin, the claw opens and closes and the total length of the linear slide shifts, allowing us to grab the large ball. To get the necessary width we need, we can either push the red linear slides closer towards the center of the intake, push the blue linear slides closer towards the edge of the roller, and/or we can move the red linear slides closer towards the front of the intake. Because the linear slide can extend and rotate about 2 points, storing will not be a problem if rollers extend sideways. The slides should be compressed when stored, and when the rollers extend out, the angle and the length of the claw will change as necessary.
The Flood is Brewing....