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spiffchorder:2010-03-leather [2010/03/21 15:40]
priestdo created
spiffchorder:2010-03-leather [2010/03/23 21:30] (current)
priestdo
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 ====== March 2010 Leather Desktop Chorder ====== ====== March 2010 Leather Desktop Chorder ======
 +Sunday afternoon project. ​ This right hand chorder uses the atmega168 chip.  It is built on a Radio Shack 276-150 printed circuit board which greatly reduces the need to run wires around. ​ It uses Cherry keyswithches with replacement lighter weight springs. ​ It was used to create and edit this wiki page.
  
 +-Greg
 +
 +|{{spiffchorder:​2010.03.lc.ip.jpg?​400|}}| as tested prior to final glue up (Don't glue the case closed before you know it all works!)|
 +|{{spiffchorder:​2010.03.lc.keys.jpg?​400|}}|Underside of the plastic board with keyswithches all wired|
 +|{{spiffchorder:​2010.03.lc.electronics_top.jpg?​400|}}|circuit - board has been cut away to fit in to the case.  Since switches are close, no pullup resistors are used in this build. ​ Keyswitches are wired to an eight pin sip socket |
 +|{{spiffchorder:​2010.03.lc.electronics_bottom.jpg?​400|}}|underside of circuit - as you can see, only a few jumpers are needed and much more of the board could be cut away if need be|
 +|{{spiffchorder:​2010.03.lc.assembly_01.jpg?​400|}}|foam keeps the keyswitch pins from contacting the circuit board and keeps everything in place|
 +|{{spiffchorder:​2010.03.lc.assembly_02.jpg?​400|}}|circuit board in position|
 +|{{spiffchorder:​2010.03.lc.assembly_03.jpg?​400|}}|a little more foam to keep circuit board from moving around in the case|
 +|{{spiffchorder:​2010.03.lc.unwrapped_01.jpg?​400|}}|exterior showing layers of leather - note that the thumb side of the chorder is quite a bit higher than the pinkie side and that it also is lower on the edge facing closer to your palm |
 +|{{spiffchorder:​2010.03.lc.unwrapped_02.jpg?​400|}}|exterior showing layers of leather and slope of case|
 +|{{spiffchorder:​2010.03.lc.assembly_04.jpg?​400|}}|leather trimmed, contact cement drying before attaching bottom. (I always put a date on it somewhere.)|
 +|{{spiffchorder:​2010.03.lc.assembly_05.jpg?​400|}}|thin exterior layer (white fake leather) contact cement drying |
 +|{{spiffchorder:​2010.03.lc.assembly_06.jpg?​400|}}|assembled|
 +|{{spiffchorder:​2010.03.lc.final.jpg?​400|}}|cleaned up|
spiffchorder/2010-03-leather.1269200427.txt.gz ยท Last modified: 2010/03/21 15:40 by priestdo
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