09-10. Mechanical design, Machine design,Machine presentations


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


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My contribution

my roles are:

■ milling FAB NET PCB board

■ extruder mechanism

■ poster

IDEA

To make a machine that make something we started with ideation process. We had many ideas like a machine that sprinkle sesame on ramen, a machine that play Jenga game, a machine that dip vegetable to Bagna càuda...etc. Finally we made a decision. Our concept is called “Kaiware Doodle”. Kaiware Doodle is a Kaiware Sprout planting machine.

Kaiware -
“Kaiware are sprouted daikon radish seeds. Frequently used in Asian cuisine. Use in salads, sushi and as a garnish. These radish sprouts have a very powerful radish flavor with a real peppery finish. Find them in Asian grocery stores, usually in little clumps with roots attached.”
http://www.gourmetsleuth.com/ingredients/detail/kaiware-sprouts#ixzz46NAOzHwq

FAB NET

Milling:SHINICHIRO ITO

■Tools:
Roland SRM-20
w/ 3mm collet: Roland ZC-23-3 for MDX-40

First I used the 076-000Ar1.rml file which was downloaded from FABNET files page. It didn’t work because the milled size was very small. I guess the reason for this mistake is that the 076-000Ar1.rml file is made for other machine which has different work scale than SRM-20.

Second, I downloaded 076-000Ar1.png and converted it to .rml file with FabModules for SRM-20. The trace milling was succeeded. However, second trial ended with failure because of milling outline. The cause of trouble was the original .png file didn’t have clearance area for outline milling. So I added clearance area with Photoshop.

We succeeded to milling the board when we tried third time.

There are notes about using 3mm collet called Roland ZC-23-3 for SRM-20. The collet is originally for Roland MDX-40A, but it fits on SRM-20. The usage is bit tricky because the ways of holding endmill are different. We figured out that when we tightened the collet and fixed it to SRM-20, Z-axis height moves about 0.10-0.20 mm to upper direction. So, we made Z-axis 0.10-0.20 mm to lower than set z home position with rotating the endmill. The shiney part on the pictures were made in experiment milling job when we were trying the Z height adjustment.

Hammer

To make the hammer part we took a photo of doing sit-up. Then, we made traced line with Adobe Illustrator. we cut the MDF with laser cutter to materialize the hammer.

Poster

I designed poster:

Video