I'm making a animatronic (dragon's) tail that responds to touch.
I'm would like that the mechanics move smoothy
and in a 'as controlled way' as
possible. If time permits,
I will create various routine responses,
based on the range of the sensors measurements.
Genaral speaking:
The concept of making a robot or animatronic is not new and has been done many times before.
Which makes it a bit disappointing that in terms of DIY projects, there is very limited documentation to find on the internet.
I ended up viewing a lot of DIY-ers on YouTube for a source of inspiration. (search term: animatronic tail)
There are a lot of end result movie's and photo's to find, but not the explanations of how and why
about design/construction choices.
general : | ||
3 plates of 4mm MDF (60 x 30 cm) | FabLab price: 500 ISK | |
a plate of 3mm acrylic (60 x 40 cm) | FabLab price: 1500 ISK | |
PLA | 6 x 3Dprinted pieces in PLA: x 2 gram x 10 ISK | |
a roll of fishing wire (pull strength of 10kg) | ||
24 little springs (12 mm long) | (packaged per two) 12 x 150 ISK | |
2 tie wrap | ||
copper plate sticker | 15 cm x 11 ISK (per cm) | |
electronics : | ||
copper plate (6" x 4") | 200 ISK | |
soldering tin | ||
band wire | ||
5V battery | ||
FTDI cable | ||
2 servo's | (+/- 10 dollar each) | |
touch sensor board: | (+/- 5 dollar) | |
IC1 ATTINY45 | ||
J1 (6 pin, FTDI) | ||
J2 (4 pin header) | ||
J3 (4 pin header) | ||
J4 ISP (6 pin header) | ||
R1 10k | ||
R2 1M | ||
R3 1M | ||
C1 1uF | ||
servo control board: | (+/- 5 dollar) | |
IC1 ATTINY44 | ||
IC2 5V | ||
J1 ISP (6 pin header) | ||
J2 (4 pin header) | ||
J3 (6 pin header) | ||
J4 (6 pin, FTDI) | ||
R1 10k | ||
C1 .47uF | ||
C2 22uF | ||
connectorboard with RST button: | (+/- 5 dollar) | |
button | ||
IC2 5V | ||
LED | ||
J1 ISP (6 pin header) | ||
J2 ISP (6 pin header) | ||
J3 ISP (4 pin header) | ||
J4 ISP (4 pin header) | ||
R1 499 | ||
C1 .47uF | ||
C2 22uF | ||
Price total: | 9240 ISK | |
(60 euro) (80 dollar) |
Only the springs have been bought locally in a hardware store,
http://www.fossberg.is/?prodid=772
rest of the materials come from the standard stock of FabLab Reykjavik.
debugging: What's wrong with my coding? My code seems to get stuck in the get char loop...
22/23 may Lab will be closed because of a local event
26/27 may full workday's in the Lab
28 till 1 june I have no time for FabAcademy because of personal event
2/3 june full workday's in the Lab
4 june deadline project presentation
Animatronic should give a lifelike response when someone tries to touch it