Fab Academy 2014,
Masato Takemura

Weekly Assingments

Class4: Electronics Production
Feb 19th,2014

Memo

This week I'v learned how to make electronics products.

Assignment

This week's assignment is to make FABISP by CNC milling machine.
My first work is ordering parts that I use. I orderd them with Digi-Key. I orderd at wednsday midnight in Japan and they arrived next monday evening.

Download shematic

I down loaded the schmatic as png-file from fabacademy2014 website.

fig.1 Schematics I downloaded "hello.ISP.44".

fig.2 display of FabModule

About our machine

I used CNC milling machine "BLACK2" selled in Japan.

work size: 150mm * 200mm
control soft: Mach3 on windowsXP
Tool: 4mm,3.175mm(1/8inch)

First try

I cut just profile. But I could not solder...bridge,bridge,bridge...
I changed the paramater on FabModule, "offsets", 4(defalt) to -1.

Second try

I finished to assemble.

Installing farmware

I installed firmware. I got it from here.

We need to connect 5V power supply via USB connector. Keep 2 Short Jumpers SJ1,SJ2 on. Then Connect ISP Connector from AVRISP mkII and input farmware from PC.
I reffer to http://academy.cba.mit.edu/content/tutorials/akf/programming_FabISP.html#mac

STEP

(*I used OSX mountain lion.)
1.install Crosspach AVR
2.download firmware 2.change Makefile
3.make clean
4.make hex
5.make fuse
6.make program
7.remove short jumper

NOTE

I lose time by using iphone adapter for power supply when writing firmware to the board. It seems doesn't supply power with out iphone...

[Reference]

HOW TO GET WHAT YOU WANT:

http://fab.cba.mit.edu/content/projects/fabisp/

Fab Academy 2014, Masato Takemura