Week 9
Mechanical design ( Mar 30 )
Group Assignment:
make a machine, including the end effector build the passive parts and operate it manually document the group project and your individual contribution
- Note from lecture
- Stress = press. strain = pain stress-strain curve - favourite plastic : HDPE
01_Liquid syringe : sketches
Our project is a cnc machine with 2 changeable head. One head is for pick & place mosaic. Another head is to draw with liquid (originally drawing a moss but we'll start with the idea of liquid in general)
We are devided in 3 groups: a)reponsible for the main structure (axis X,Y) b)pick & place head c)liquid extruder head
I'm in the third group with Ernesto
1. Ernesto
has found a pretty cool reference of Syringe Extruder and he'll print it
2. Even though the reference Ernesto found looks already complete, I decided to try something different, just to be another option. Here are various idea on how the syringe could be
3. thinking of using servo motor and some parts I already had..
4.
5.
02_Pick & place : body part
1. In the meantime, realising what I was doing for liquid syringe could be useless, I decided to volunteer for the Pick & place group.
One lacking part is the body to hold the motor so I started with studying the model of the syringe reference
2. Measuring the DC motor
3. Measuring the big syringe
4.
5. Cleaning file, ready to export
6. I was about to print it and then I discovered that DC motor wouldn't be strong enough. We'll need to use stepper
which means probably the structure Ernesto found is the best option by now. Well, and that's where I stopped..
So, to be continued..
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