156B Week 5
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
We have a working 3D printer, and finished a couple of our extruder designs and 3D printed them. We tested with a few of them, and will finalize our design by next week.
We finished testing with UV light and have purchased convective fans that we will turn into heaters.
Accomplishments from Previous Week
We 3D printed our extruder design and purchased a new smaller motor. We tested with UV light and found out that effects were negligible compared to heat. We decided to solely use heat to cure the dragon skin. We will create convective heaters using small computer fans. This along with the heating bed should create enough heat that the material will cure.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Jason -will build miniature convective heater using fans and coil. Going to use online tutorials of mini hot air guns, and mimic it
Xin and Harrison - continue with the design of the extruder. We came up with a 2 inlet extruder and a 1 inlet extruder. They will finalize the 2 inlet extruder and start building the 1 inlet extruder, and continue testing with the material
Harrison - look into mounting the extruder onto the 3D printer, and testing the 3D printer software and try to alter speed of printing
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Sponsor comments: Our sponsor asked us to have a working prototype within the next week
Actions taken: We will start working on putting everything together this week
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Instructor comments (1/29 in person): Try not to 3D print everything. Instead of 3D printing the mixer, we can purchase a reamer tool that spins and mixes for us.
Actions taken: We spoke with Tom and he allowed us to use a reamer that we found fit into our system. We are going to test with the tool after we have completed the extruder
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
None
Risks and Areas of Concern
Poor 3D printing resolution makes it hard to prototype. We are going to use a better printer the next week
Resources or Information Required but not Available
None
Schedule
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
$230 for printer
$50 extruder parts
$20 heater bed
$50 nozzle head and syringes
$30 UV lights for testing
$40 heaters
$400 UV light*2
$30 more mcmaster parts
$30 convective fans
$20 heater wire
~$1800 still left in our budget
Progress on Report and Webpage
Updated