Jetha's Graduation Project

Category: Technician Meetings

Categories
Construction Technician Meetings

Week 16 – Circuit Construction

SMART Goals for this week

  • Write presentation
  • Edit Literature Review and Introduction
  • Plan out construction
    • Consult technician for physical computing elements

No supervisor meeting this week cause of bank holiday

What I did this week

I made a 3D model of the spatial organisation box to figure out the dimensions needed.

Technician Meeting Notes

I had a meeting with Zeyu the physical computing technician. We went through each part of the sculpture and the circuitry.

Spatial Organisation

  • Strip of LEDs use tracing paper to stop the spotting light effect
    • Strip board
      • Multi core wire 
      • Switch 
      • MOSFET 
    • Plug into the wall

User control

  • Linear actuator
    • Integrated chip   
Circuit for linear solenoids for self pushing buttons

Interface remediation

  • HDMI connection for screen
  • Raspberry pi

I had the formative presentation which didn’t go too well. This is the feedback from it.

  • You can start explaining what your project is about. What do you mean the capacity of the computer – do you mean in terms of power?or metaphorically? – Please do not forget the citations. – How does it highlight how modern GUIS quietly shape – makes invisible structures – Gantt chart a bit more detailed with dates. – Be more focused on the connection interaction HCI

It did make me realise that I was focusing too much on how I got to the project not the project itself in my thesis. I also got worried I wouldn’t be able to do the sculpture I planned out as the circuits weren’t working. But after the presentation I went to the physical computing lab and managed to get integrated chip and linear actuator working.

circuit for linear actuator

I’ve learnt that a linear actuator can’t move at a certain distance at different speeds. So, I’ll need to use a stepper servo with a rack and pinion.

user control: circuit for solenoids
time compressed processes: servo circuit
rack and pinion

I couldn’t move the pinion with the lever but I assume that this is due to friction caused by the wood and cardboard.

Zeyu mentioned COB LEDs, on the day we could only find small panels. But I found strips so I’ll use these for the lights in the spatial organisation part.

Over the weekend I made a new structure for my introduction.